让C# Excel导入导出，支持不同版本的Office
2016-11-05 10:11
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让C# Excel导入导出，支持不同版本的Office
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<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="margin:0px; padding:0px; font-size:16px"><span style="margin:0px; padding:0px">问题：</span></span>最近在项目中遇到，不同客户机安装不同Office版本，在导出Excel时，发生错误。</p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
找不到Excel Com组件，错误信息如下。</p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="margin:0px; padding:0px; color:rgb(255,0,0)">未能加载文件或程序集“Microsoft.Office.Interop.Excel, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c”或它的某一个依赖项。系统找不到指定的文件。</span></p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="margin:0px; padding:0px; font-size:16px"><span style="margin:0px; padding:0px">解决方法：</span></span></p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="margin:0px; padding:0px"> 1.引用高版本的的Excel.dll组件，最新版本14.0.0 防止客户安装高版本如Office不能导出。</span></p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="margin:0px; padding:0px"> （<span style="margin:0px; padding:0px; color:rgb(255,102,0)">DLL组件可以兼容低版本，不能兼容高版本</span>）</span></p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="margin:0px; padding:0px"> 2.右键DLL属性，将引用的Excel.dll组件，<span style="margin:0px; padding:0px; color:rgb(255,102,0)">嵌入互操作类型为True</span>，特定版本=false .这一步非常关键。</span></p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-fa
4000
mily:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="margin:0px; padding:0px"> 嵌入互操作类型 改成True后，<span style="margin:0px; padding:0px; color:rgb(255,102,0)">生成时可能现有调用Excel的代码会报错</span>，引用<span style="margin:0px; padding:0px; color:rgb(255,102,0)">Microsoft.CSharp <span style="margin:0px; padding:0px; color:rgb(0,0,0)">命名空间，可以解决此问题。</span></span></span></p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="margin:0px; padding:0px"> 3.引用Excel 14.0.0 DLL组件方法，vs2012 右键添加引用->程序集->扩展->Microsoft.Office.Interop.Excel</span></p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="margin:0px; padding:0px"> Excel.dll <a target="_blank" title="Excel 14.0.0.0.dll" href="http://files.cnblogs.com/files/ichk/Microsoft.Office.Interop.Excel.rar" style="margin:0px; padding:0px; color:black">http://files.cnblogs.com/files/ichk/Microsoft.Office.Interop.Excel.rar</a><br style="margin:0px; padding:0px">
</span></p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="margin:0px; padding:0px"> </span></p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="margin:0px; padding:0px"><span style="margin:0px; padding:0px; color:rgb(255,102,0)"><span style="margin:0px; padding:0px; color:rgb(0,0,0)"><span style="margin:0px; padding:0px">其他方法：</span></span></span></span></p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="margin:0px; padding:0px"><span style="margin:0px; padding:0px; color:rgb(255,102,0)"><span style="margin:0px; padding:0px; color:rgb(0,0,0)"> </span><span style="margin:0px; padding:0px; color:rgb(0,0,0)">1.使用NPOI.DLL开源组件，可以不安装Office软件，进行读写Excel文件。</span></span></span></p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="margin:0px; padding:0px"><span style="margin:0px; padding:0px; color:rgb(255,102,0)"><span style="margin:0px; padding:0px; color:rgb(0,0,0)"> NPIO.dll <a target="_blank" title="NPOI" href="http://files.cnblogs.com/files/ichk/NPOI.rar" style="margin:0px; padding:0px; color:black">http://files.cnblogs.com/files/ichk/NPOI.rar</a></span></span></span></p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="margin:0px; padding:0px">调用方法如下：</span></p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="margin:0px; padding:0px">导出代码：</span></p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="margin:0px; padding:0px"></span></p>
<div class="dp-highlighter bg_csharp"><div class="bar"><div class="tools"><b>[csharp]</b> <a href="#" class="ViewSource" title="view plain" onclick="dp.sh.Toolbar.Command('ViewSource',this);return false;">view plain</a><span data-mod="popu_168"> <a href="#" class="CopyToClipboard" title="copy" onclick="dp.sh.Toolbar.Command('CopyToClipboard',this);return false;">copy</a><div style="position: absolute; left: 446px; top: 1165px; width: 18px; height: 18px; z-index: 99;"><embed id="ZeroClipboardMovie_1" src="http://static.blog.csdn.net/scripts/ZeroClipboard/ZeroClipboard.swf" loop="false" menu="false" quality="best" bgcolor="#ffffff" width="18" height="18" name="ZeroClipboardMovie_1" align="middle" allowscriptaccess="always" allowfullscreen="false" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" flashvars="id=1&width=18&height=18" wmode="transparent"></div></span><span data-mod="popu_169"> <a href="#" class="PrintSource" title="print" onclick="dp.sh.Toolbar.Command('PrintSource',this);return false;">print</a></span><a href="#" class="About" title="?" onclick="dp.sh.Toolbar.Command('About',this);return false;">?</a></div></div><ol start="1" class="dp-c"><li class="alt"><span><span class="comment">/// <summary></span><span> </span></span></li><li class=""><span> <span class="comment">/// DataTable导出到Excel的MemoryStream Export()</span><span> </span></span></li><li class="alt"><span> <span class="comment">/// </summary></span><span> </span></span></li><li class=""><span> <span class="comment">/// <param name="dtSource">DataTable数据源</param></span><span> </span></span></li><li class="alt"><span> <span class="comment">/// <param name="strHeaderText">Excel表头文本（例如：车辆列表）</param></span><span> </span></span></li><li class=""><span> <span class="keyword">public</span><span> </span><span class="keyword">static</span><span> MemoryStream Export(DataTable dtSource, </span><span class="keyword">string</span><span> strHeaderText) </span></span></li><li class="alt"><span> { </span></li><li class=""><span> HSSFWorkbook workbook = <span class="keyword">new</span><span> HSSFWorkbook(); </span></span></li><li class="alt"><span> ISheet sheet = workbook.CreateSheet(); </span></li><li class=""><span><span class="preprocessor"> </span> </span></li><li class="alt"><span><span class="preprocessor"> #region 右击文件 属性信息</span><span> </span></span></li><li class=""><span> { </span></li><li class="alt"><span> DocumentSummaryInformation dsi = PropertySetFactory.CreateDocumentSummaryInformation(); </span></li><li class=""><span> dsi.Company = <span class="string">"NPOI"</span><span>; </span></span></li><li class="alt"><span> workbook.DocumentSummaryInformation = dsi; </span></li><li class=""><span> </span></li><li class="alt"><span> SummaryInformation si = PropertySetFactory.CreateSummaryInformation(); </span></li><li class=""><span> si.Author = <span class="string">"文件作者信息"</span><span>; </span><span class="comment">//填加xls文件作者信息</span><span> </span></span></li><li class="alt"><span> si.ApplicationName = <span class="string">"创建程序信息"</span><span>; </span><span class="comment">//填加xls文件创建程序信息</span><span> </span></span></li><li class=""><span> si.LastAuthor = <span class="string">"最后保存者信息"</span><span>; </span><span class="comment">//填加xls文件最后保存者信息</span><span> </span></span></li><li class="alt"><span> si.Comments = <span class="string">"作者信息"</span><span>; </span><span class="comment">//填加xls文件作者信息</span><span> </span></span></li><li class=""><span> si.Title = <span class="string">"标题信息"</span><span>; </span><span class="comment">//填加xls文件标题信息</span><span> </span></span></li><li class="alt"><span> si.Subject = <span class="string">"主题信息"</span><span>;</span><span class="comment">//填加文件主题信息</span><span> </span></span></li><li class=""><span> si.CreateDateTime = System.DateTime.Now; </span></li><li class="alt"><span> workbook.SummaryInformation = si; </span></li><li class=""><span> } </span></li><li class="alt"><span><span class="preprocessor"> #endregion</span><span> </span></span></li><li class=""><span> </span></li><li class="alt"><span> ICellStyle dateStyle = workbook.CreateCellStyle(); </span></li><li class=""><span> IDataFormat format = workbook.CreateDataFormat(); </span></li><li class="alt"><span> dateStyle.DataFormat = format.GetFormat(<span class="string">"yyyy-mm-dd"</span><span>); </span></span></li><li class=""><span> </span></li><li class="alt"><span> <span class="comment">//取得列宽</span><span> </span></span></li><li class=""><span> <span class="keyword">int</span><span>[] arrColWidth = </span><span class="keyword">new</span><span> </span><span class="keyword">int</span><span>[dtSource.Columns.Count]; </span></span></li><li class="alt"><span> <span class="keyword">foreach</span><span> (DataColumn item </span><span class="keyword">in</span><span> dtSource.Columns) </span></span></li><li class=""><span> { </span></li><li class="alt"><span> arrColWidth[item.Ordinal] = Encoding.GetEncoding(936).GetBytes(item.ColumnName.ToString()).Length; </span></li><li class=""><span> } </span></li><li class="alt"><span> <span class="keyword">for</span><span> (</span><span class="keyword">int</span><span> i = 0; i < dtSource.Rows.Count; i++) </span></span></li><li class=""><span> { </span></li><li class="alt"><span> <span class="keyword">for</span><span> (</span><span class="keyword">int</span><span> j = 0; j < dtSource.Columns.Count; j++) </span></span></li><li class=""><span> { </span></li><li class="alt"><span> <span class="keyword">int</span><span> intTemp = Encoding.GetEncoding(936).GetBytes(dtSource.Rows[i][j].ToString()).Length; </span></span></li><li class=""><span> <span class="keyword">if</span><span> (intTemp > arrColWidth[j]) </span></span></li><li class="alt"><span> { </span></li><li class=""><span> arrColWidth[j] = intTemp; </span></li><li class="alt"><span> } </span></li><li class=""><span> } </span></li><li class="alt"><span> } </span></li><li class=""><span> <span class="keyword">int</span><span> rowIndex = 0; </span></span></li><li class="alt"><span> <span class="keyword">foreach</span><span> (DataRow row </span><span class="keyword">in</span><span> dtSource.Rows) </span></span></li><li class=""><span> { </span></li><li class="alt"><span><span class="preprocessor"> #region 新建表，填充表头，填充列头，样式</span><span> </span></span></li><li class=""><span> <span class="keyword">if</span><span> (rowIndex == 65535 || rowIndex == 0) </span></span></li><li class="alt"><span> { </span></li><li class=""><span> <span class="keyword">if</span><span> (rowIndex != 0) </span></span></li><li class="alt"><span> { </span></li><li class=""><span> sheet = workbook.CreateSheet(); </span></li><li class="alt"><span> } </span></li><li class=""><span><span class="preprocessor"></span> </span></li><li class="alt"><span><span class="preprocessor"> #region 表头及样式</span><span> </span></span></li><li class=""><span> { </span></li><li class="alt"><span> IRow headerRow = sheet.CreateRow(0); </span></li><li class=""><span> headerRow.HeightInPoints = 25; </span></li><li class="alt"><span> headerRow.CreateCell(0).SetCellValue(strHeaderText); </span></li><li class=""><span> </span></li><li class="alt"><span> ICellStyle headStyle = workbook.CreateCellStyle(); </span></li><
18dec
;li class=""><span> headStyle.Alignment = HorizontalAlignment.CENTER; </span></li><li class="alt"><span> IFont font = workbook.CreateFont(); </span></li><li class=""><span> font.FontHeightInPoints = 20; </span></li><li class="alt"><span> font.Boldweight = 700; </span></li><li class=""><span> headStyle.SetFont(font); </span></li><li class="alt"><span> headerRow.GetCell(0).CellStyle = headStyle; </span></li><li class=""><span> sheet.AddMergedRegion(<span class="keyword">new</span><span> NPOI.SS.Util.CellRangeAddress(0, 0, 0, dtSource.Columns.Count - 1)); </span></span></li><li class="alt"><span> } </span></li><li class=""><span><span class="preprocessor"> #endregion</span><span> </span></span></li><li class="alt"><span><span class="preprocessor"></span> </span></li><li class=""><span><span class="preprocessor"> #region 列头及样式</span><span> </span></span></li><li class="alt"><span> { </span></li><li class=""><span> IRow headerRow = sheet.CreateRow(1); </span></li><li class="alt"><span> ICellStyle headStyle = workbook.CreateCellStyle(); </span></li><li class=""><span> headStyle.Alignment = HorizontalAlignment.CENTER; </span></li><li class="alt"><span> IFont font = workbook.CreateFont(); </span></li><li class=""><span> font.FontHeightInPoints = 10; </span></li><li class="alt"><span> font.Boldweight = 700; </span></li><li class=""><span> headStyle.SetFont(font); </span></li><li class="alt"><span> <span class="keyword">foreach</span><span> (DataColumn column </span><span class="keyword">in</span><span> dtSource.Columns) </span></span></li><li class=""><span> { </span></li><li class="alt"><span> headerRow.CreateCell(column.Ordinal).SetCellValue(column.ColumnName); </span></li><li class=""><span> headerRow.GetCell(column.Ordinal).CellStyle = headStyle; </span></li><li class="alt"><span> </span></li><li class=""><span> <span class="comment">//设置列宽</span><span> </span></span></li><li class="alt"><span> sheet.SetColumnWidth(column.Ordinal, (arrColWidth[column.Ordinal] + 1) * 256); </span></li><li class=""><span> } </span></li><li class="alt"><span> } </span></li><li class=""><span><span class="preprocessor"> #endregion</span><span> </span></span></li><li class="alt"><span> </span></li><li class=""><span> rowIndex = 2; </span></li><li class="alt"><span> } </span></li><li class=""><span><span class="preprocessor"> #endregion</span><span> </span></span></li><li class="alt"><span><span class="preprocessor"></span> </span></li><li class=""><span><span class="preprocessor"> #region 填充内容</span><span> </span></span></li><li class="alt"><span> IRow dataRow = sheet.CreateRow(rowIndex); </span></li><li class=""><span> <span class="keyword">foreach</span><span> (DataColumn column </span><span class="keyword">in</span><span> dtSource.Columns) </span></span></li><li class="alt"><span> { </span></li><li class=""><span> ICell newCell = dataRow.CreateCell(column.Ordinal); </span></li><li class="alt"><span> </span></li><li class=""><span> <span class="keyword">string</span><span> drValue = row[column].ToString(); </span></span></li><li class="alt"><span> </span></li><li class=""><span> <span class="keyword">switch</span><span> (column.DataType.ToString()) </span></span></li><li class="alt"><span> { </span></li><li class=""><span> <span class="keyword">case</span><span> </span><span class="string">"System.String"</span><span>:</span><span class="comment">//字符串类型</span><span> </span></span></li><li class="alt"><span> newCell.SetCellValue(drValue); </span></li><li class=""><span> <span class="keyword">break</span><span>; </span></span></li><li class="alt"><span> <span class="keyword">case</span><span> </span><span class="string">"System.DateTime"</span><span>:</span><span class="comment">//日期类型</span><span> </span></span></li><li class=""><span> System.DateTime dateV; </span></li><li class="alt"><span> System.DateTime.TryParse(drValue, <span class="keyword">out</span><span> dateV); </span></span></li><li class=""><span> newCell.SetCellValue(dateV); </span></li><li class="alt"><span> </span></li><li class=""><span> newCell.CellStyle = dateStyle;<span class="comment">//格式化显示</span><span> </span></span></li><li class="alt"><span> <span class="keyword">break</span><span>; </span></span></li><li class=""><span> <span class="keyword">case</span><span> </span><span class="string">"System.Boolean"</span><span>:</span><span class="comment">//布尔型</span><span> </span></span></li><li class="alt"><span> <span class="keyword">bool</span><span> boolV = </span><span class="keyword">false</span><span>; </span></span></li><li class=""><span> <span class="keyword">bool</span><span>.TryParse(drValue, </span><span class="keyword">out</span><span> boolV); </span></span></li><li class="alt"><span> newCell.SetCellValue(boolV); </span></li><li class=""><span> <span class="keyword">break</span><span>; </span></span></li><li class="alt"><span> <span class="keyword">case</span><span> </span><span class="string">"System.Int16"</span><span>:</span><span class="comment">//整型</span><span> </span></span></li><li class=""><span> <span class="keyword">case</span><span> </span><span class="string">"System.Int32"</span><span>: </span></span></li><li class="alt"><span> <span class="keyword">case</span><span> </span><span class="string">"System.Int64"</span><span>: </span></span></li><li class=""><span> <span class="keyword">case</span><span> </span><span class="string">"System.Byte"</span><span>: </span></span></li><li class="alt"><span> <span class="keyword">int</span><span> intV = 0; </span></span></li><li class=""><span> <span class="keyword">int</span><span>.TryParse(drValue, </span><span class="keyword">out</span><span> intV); </span></span></li><li class="alt"><span> newCell.SetCellValue(intV); </span></li><li class=""><span> <span class="keyword">break</span><span>; </span></span></li><li class="alt"><span> <span class="keyword">case</span><span> </span><span class="string">"System.Decimal"</span><span>:</span><span class="comment">//浮点型</span><span> </span></span></li><li class=""><span> <span class="keyword">case</span><span> </span><span class="string">"System.Double"</span><span>: </span></span></li><li class="alt"><span> <span class="keyword">double</span><span> doubV = 0; </span></span></li><li class=""><span> <span class="keyword">double</span><span>.TryParse(drValue, </span><span class="keyword">out</span><span> doubV); </span></span></li><li class="alt"><span> newCell.SetCellValue(doubV); </span></li><li class=""><span> <span class="keyword">break</span><span>; </span></span></li><li class="alt"><span> <span class="keyword">case</span><span> </span><span class="string">"System.DBNull"</span><span>:</span><span class="comment">//空值处理</span><span> </span></span></li><li class=""><span> newCell.SetCellValue(<span class="string">""</span><span>); </span></span></li><li class="alt"><span> <span class="keyword">break</span><span>; </span></span></li><li class=""><span> <span class="keyword">default</span><span>: </span></span></li><li class="alt"><span> newCell.SetCellValue(<span class="string">""</span><span>); </span></span></li><li class=""><span> <span class="keyword">break</span><span>; </span></span></li><li class="alt"><span> } </span></li><li class=""><span> } </span></li><li class="alt"><span><span class="preprocessor"> #endregion</span><span> </span></span></li><li class=""><span> </span></li><li class="alt"><span> rowIndex++; </span></li><li class=""><span> } </span></li><li class="alt"><span> <span class="keyword">using</span><span> (MemoryStream ms = </span><span class="keyword">new</span><span> MemoryStream()) </span></span></li><li class=""><span> { </span></li><li class="alt"><span> workbook.Write(ms); </span></li><li class=""><span> ms.Flush(); </span></li><li class="alt"><span> ms.Position = 0; </span></li><li class=""><span> sheet.Dispose(); </span></li><li class="alt"><span> <span class="keyword">return</span><span> ms; </span></span></li><li class=""><span> } </span></li><li class="alt"><span> } </span></li></ol><div class="save_code tracking-ad" data-mod="popu_249"><a href="javascript:;"><img src="http://static.blog.csdn.net/images/save_snippets.png"></a></div></div><pre name="code" class="csharp" style="display: none;">/// <summary>
/// DataTable导出到Excel的MemoryStream Export()
/// </summary>
/// <param name="dtSource">DataTable数据源</param>
/// <param name="strHeaderText">Excel表头文本（例如：车辆列表）</param>
public static MemoryStream Export(DataTable dtSource, string strHeaderText)
{
HSSFWorkbook workbook = new HSSFWorkbook();
ISheet sheet = workbook.CreateSheet();
#region 右击文件 属性信息
{
DocumentSummaryInformation dsi = PropertySetFactory.CreateDocumentSummaryInformation();
dsi.Company = "NPOI";
workbook.DocumentSummaryInformation = dsi;
SummaryInformation si = PropertySetFactory.CreateSummaryInformation();
si.Author = "文件作者信息"; //填加xls文件作者信息
si.ApplicationName = "创建程序信息"; //填加xls文件创建程序信息
si.LastAuthor = "最后保存者信息"; //填加xls文件最后保存者信息
si.Comments = "作者信息"; //填加xls文件作者信息
si.Title = "标题信息"; //填加xls文件标题信息
si.Subject = "主题信息";//填加文件主题信息
si.CreateDateTime = System.DateTime.Now;
workbook.SummaryInformation = si;
}
#endregion
ICellStyle dateStyle = workbook.CreateCellStyle();
IDataFormat format = workbook.CreateDataFormat();
dateStyle.DataFormat = format.GetFormat("yyyy-mm-dd");
//取得列宽
int[] arrColWidth = new int[dtSource.Columns.Count];
foreach (DataColumn item in dtSource.Columns)
{
arrColWidth[item.Ordinal] = Encoding.GetEncoding(936).GetBytes(item.ColumnName.ToString()).Length;
}
for (int i = 0; i < dtSource.Rows.Count; i++)
{
for (int j = 0; j < dtSource.Columns.Count; j++)
{
int intTemp = Encoding.GetEncoding(936).GetBytes(dtSource.Rows[i][j].ToString()).Length;
if (intTemp > arrColWidth[j])
{
arrColWidth[j] = intTemp;
}
}
}
int rowIndex = 0;
foreach (DataRow row in dtSource.Rows)
{
#region 新建表，填充表头，填充列头，样式
if (rowIndex == 65535 || rowIndex == 0)
{
if (rowIndex != 0)
{
sheet = workbook.CreateSheet();
}
#region 表头及样式
{
IRow headerRow = sheet.CreateRow(0);
headerRow.HeightInPoints = 25;
headerRow.CreateCell(0).SetCellValue(strHeaderText);
ICellStyle headStyle = workbook.CreateCellStyle();
headStyle.Alignment = HorizontalAlignment.CENTER;
IFont font = workbook.CreateFont();
font.FontHeightInPoints = 20;
font.Boldweight = 700;
headStyle.SetFont(font);
headerRow.GetCell(0).CellStyle = headStyle;
sheet.AddMergedRegion(new NPOI.SS.Util.CellRangeAddress(0, 0, 0, dtSource.Columns.Count - 1));
}
#endregion
#region 列头及样式
{
IRow headerRow = sheet.CreateRow(1);
ICellStyle headStyle = workbook.CreateCellStyle();
headStyle.Alignment = HorizontalAlignment.CENTER;
IFont font = workbook.CreateFont();
font.FontHeightInPoints = 10;
font.Boldweight = 700;
headStyle.SetFont(font);
foreach (DataColumn column in dtSource.Columns)
{
headerRow.CreateCell(column.Ordinal).SetCellValue(column.ColumnName);
headerRow.GetCell(column.Ordinal).CellStyle = headStyle;
//设置列宽
sheet.SetColumnWidth(column.Ordinal, (arrColWidth[column.Ordinal] + 1) * 256);
}
}
#endregion
rowIndex = 2;
}
#endregion
#region 填充内容
IRow dataRow = sheet.CreateRow(rowIndex);
foreach (DataColumn column in dtSource.Columns)
{
ICell newCell = dataRow.CreateCell(column.Ordinal);
string drValue = row[column].ToString();
switch (column.DataType.ToString())
{
case "System.String"://字符串类型
newCell.SetCellValue(drValue);
break;
case "System.DateTime"://日期类型
System.DateTime dateV;
System.DateTime.TryParse(drValue, out dateV);
newCell.SetCellValue(dateV);
newCell.CellStyle = dateStyle;//格式化显示
break;
case "System.Boolean"://布尔型
bool boolV = false;
bool.TryParse(drValue, out boolV);
newCell.SetCellValue(boolV);
break;
case "System.Int16"://整型
case "System.Int32":
case "System.Int64":
case "System.Byte":
int intV = 0;
int.TryParse(drValue, out intV);
newCell.SetCellValue(intV);
break;
case "System.Decimal"://浮点型
case "System.Double":
double doubV = 0;
double.TryParse(drValue, out doubV);
newCell.SetCellValue(doubV);
break;
case "System.DBNull"://空值处理
newCell.SetCellValue("");
break;
default:
newCell.SetCellValue("");
break;
}
}
#endregion
rowIndex++;
}
using (MemoryStream ms = new MemoryStream())
{
workbook.Write(ms);
ms.Flush();
ms.Position = 0;
sheet.Dispose();
return ms;
}
}</pre>
<p></p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">导入代码：</span><br>
</p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)"></span></p>
<div class="dp-highlighter bg_csharp"><div class="bar"><div class="tools"><b>[csharp]</b> <a href="#" class="ViewSource" title="view plain" onclick="dp.sh.Toolbar.Command('ViewSource',this);return false;">view plain</a><span data-mod="popu_168"> <a href="#" class="CopyToClipboard" title="copy" onclick="dp.sh.Toolbar.Command('CopyToClipboard',this);return false;">copy</a><div style="position: absolute; left: 446px; top: 4153px; width: 18px; height: 18px; z-index: 99;"><embed id="ZeroClipboardMovie_2" src="http://static.blog.csdn.net/scripts/ZeroClipboard/ZeroClipboard.swf" loop="false" menu="false" quality="best" bgcolor="#ffffff" width="18" height="18" name="ZeroClipboardMovie_2" align="middle" allowscriptaccess="always" allowfullscreen="false" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" flashvars="id=2&width=18&height=18" wmode="transparent"></div></span><span data-mod="popu_169"> <a href="#" class="PrintSource" title="print" onclick="dp.sh.Toolbar.Command('PrintSource',this);return false;">print</a></span><a href="#" class="About" title="?" onclick="dp.sh.Toolbar.Command('About',this);return false;">?</a></div></div><ol start="1" class="dp-c"><li class="alt"><span><span class="comment">/// <summary></span><span> </span></span></li><li class=""><span> <span class="comment">/// 读取excel ,默认第一行为标头</span><span> </span></span></li><li class="alt"><span> <span class="comment">/// </summary></span><span> </span></span></li><li class=""><span> <span class="comment">/// <param name="strFileName">excel文档路径</param></span><span> </span></span></li><li class="alt"><span> <span class="comment">/// <returns></returns></span><span> </span></span></li><li class=""><span> <span class="keyword">public</span><span> </span><span class="keyword">static</span><span> DataTable Import(</span><span class="keyword">string</span><span> strFileName) </span></span></li><li class="alt"><span> { </span></li><li class=""><span> DataTable dt = <span class="keyword">new</span><span> DataTable(); </span></span></li><li class="alt"><span> </span></li><li class=""><span> HSSFWorkbook hssfworkbook; </span></li><li class="alt"><span> <span class="keyword">using</span><span> (FileStream file = </span><span class="keyword">new</span><span> FileStream(strFileName, FileMode.Open, FileAccess.Read)) </span></span></li><li class=""><span> { </span></li><li class="alt"><span> hssfworkbook = <span class="keyword">new</span><span> HSSFWorkbook(file); </span></span></li><li class=""><span> } </span></li><li class="alt"><span> ISheet sheet = hssfworkbook.GetSheetAt(0); </span></li><li class=""><span> System.Collections.IEnumerator rows = sheet.GetRowEnumerator(); </span></li><li class="alt"><span> </span></li><li class=""><span> IRow headerRow = sheet.GetRow(0); </span></li><li class="alt"><span> <span class="keyword">int</span><span> cellCount = headerRow.LastCellNum; </span></span></li><li class=""><span> </span></li><li class="alt"><span> <span class="keyword">for</span><span> (</span><span class="keyword">int</span><span> j = 0; j < cellCount; j++) </span></span></li><li class=""><span> { </span></li><li class="alt"><span> ICell cell = headerRow.GetCell(j); </span></li><li class=""><span> dt.Columns.Add(cell.ToString()); </span></li><li class="alt"><span> } </span></li><li class=""><span> </span></li><li class="alt"><span> <span class="keyword">for</span><span> (</span><span class="keyword">int</span><span> i = (sheet.FirstRowNum + 1); i <= sheet.LastRowNum; i++) </span></span></li><li class=""><span> { </span></li><li class="alt"><span> IRow row = sheet.GetRow(i); </span></li><li class=""><span> DataRow dataRow = dt.NewRow(); </span></li><li class="alt"><span> </span></li><li class=""><span> <span class="keyword">for</span><span> (</span><span class="keyword">int</span><span> j = row.FirstCellNum; j < cellCount; j++) </span></span></li><li class="alt"><span> { </span></li><li class=""><span> <span class="keyword">if</span><span> (row.GetCell(j) != </span><span class="keyword">null</span><span>) </span></span></li><li class="alt"><span> dataRow[j] = row.GetCell(j).ToString(); </span></li><li class=""><span> } </span></li><li class="alt"><span> </span></li><li class=""><span> dt.Rows.Add(dataRow); </span></li><li class="alt"><span> } </span></li><li class=""><span> <span class="keyword">return</span><span> dt; </span></span></li><li class="alt"><span> } </span></li></ol><div class="save_code tracking-ad" data-mod="popu_249"><a href="javascript:;"><img src="http://static.blog.csdn.net/images/save_snippets.png"></a></div></div><pre name="code" class="csharp" style="display: none;">/// <summary>
/// 读取excel ,默认第一行为标头
/// </summary>
/// <param name="strFileName">excel文档路径</param>
/// <returns></returns>
public static DataTable Import(string strFileName)
{
DataTable dt = new DataTable();
HSSFWorkbook hssfworkbook;
using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read))
{
hssfworkbook = new HSSFWorkbook(file);
}
ISheet sheet = hssfworkbook.GetSheetAt(0);
System.Collections.IEnumerator rows = sheet.GetRowEnumerator();
IRow headerRow = sheet.GetRow(0);
int cellCount = headerRow.LastCellNum;
for (int j = 0; j < cellCount; j++)
{
ICell cell = headerRow.GetCell(j);
dt.Columns.Add(cell.ToString());
}
for (int i = (sheet.FirstRowNum + 1); i <= sheet.LastRowNum; i++)
{
IRow row = sheet.GetRow(i);
DataRow dataRow = dt.NewRow();
for (int j = row.FirstCellNum; j < cellCount; j++)
{
if (row.GetCell(j) != null)
dataRow[j] = row.GetCell(j).ToString();
}
dt.Rows.Add(dataRow);
}
return dt;
}</pre>
<p></p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)"><br>
</span></p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="margin:0px; padding:0px"> 2.使用C#发射方式调用Excel进行，不需要引用Excel.dll组件。此种方法不建议，太麻烦，也需要安装Office。</span></p>
<p style="margin:10px auto; padding-top:0px; padding-bottom:0px; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:14px; line-height:21px; background-color:rgb(238,238,238)">
<span style="margin:0px; padding:0px"> 调用方法如下：</span></p>
<div class="dp-highlighter bg_csharp"><div class="bar"><div class="tools"><b>[csharp]</b> <a href="#" class="ViewSource" title="view plain" onclick="dp.sh.Toolbar.Command('ViewSource',this);return false;">view plain</a><span data-mod="popu_168"> <a href="#" class="CopyToClipboard" title="copy" onclick="dp.sh.Toolbar.Command('CopyToClipboard',this);return false;">copy</a><div style="position: absolute; left: 446px; top: 5043px; width: 18px; height: 18px; z-index: 99;"><embed id="ZeroClipboardMovie_3" src="http://static.blog.csdn.net/scripts/ZeroClipboard/ZeroClipboard.swf" loop="false" menu="false" quality="best" bgcolor="#ffffff" width="18" height="18" name="ZeroClipboardMovie_3" align="middle" allowscriptaccess="always" allowfullscreen="false" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" flashvars="id=3&width=18&height=18" wmode="transparent"></div></span><span data-mod="popu_169"> <a href="#" class="PrintSource" title="print" onclick="dp.sh.Toolbar.Command('PrintSource',this);return false;">print</a></span><a href="#" class="About" title="?" onclick="dp.sh.Toolbar.Command('About',this);return false;">?</a></div></div><ol start="1" class="dp-c"><li class="alt"><span><span class="keyword">private</span><span> </span><span class="keyword">void</span><span> Export2Excel(DataGridView datagridview, </span><span class="keyword">bool</span><span> captions) </span></span></li><li class=""><span> { </span></li><li class="alt"><span> <span class="keyword">object</span><span> objApp_Late; </span></span></li><li class=""><span> <span class="keyword">object</span><span> objBook_Late; </span></span></li><li class="alt"><span> <span class="keyword">object</span><span> objBooks_Late; </span></span></li><li class=""><span> <span class="keyword">object</span><span> objSheets_Late; </span></span></li><li class="alt"><span> <span class="keyword">object</span><span> objSheet_Late; </span></span></li><li class=""><span> <span class="keyword">object</span><span> objRange_Late; </span></span></li><li class="alt"><span> <span class="keyword">object</span><span>[] Parameters; </span></span></li><li class=""><span> </span></li><li class="alt"><span> <span class="keyword">string</span><span>[] headers = </span><span class="keyword">new</span><span> </span><span class="keyword">string</span><span>[datagridview.DisplayedColumnCount(</span><span class="keyword">true</span><span>)]; </span></span></li><li class=""><span> <span class="keyword">string</span><span>[] columns = </span><span class="keyword">new</span><span> </span><span class="keyword">string</span><span>[datagridview.DisplayedColumnCount(</span><span class="keyword">true</span><span>)]; </span></span></li><li class="alt"><span> <span class="keyword">string</span><span>[] colName = </span><span class="keyword">new</span><span> </span><span class="keyword">string</span><span>[datagridview.DisplayedColumnCount(</span><span class="keyword">true</span><span>)]; </span></span></li><li class=""><span> </span></li><li class="alt"><span> <span class="keyword">int</span><span> i = 0; </span></span></li><li class=""><span> <span class="keyword">int</span><span> c = 0; </span></span></li><li class="alt"><span> <span class="keyword">int</span><span> m = 0; </span></span></li><li class=""><span> </span></li><li class="alt"><span> <span class="keyword">for</span><span> (c = 0; c < datagridview.Columns.Count; c++) </span></span></li><li class=""><span> { </span></li><li class="alt"><span> <span class="keyword">for</span><span> (</span><span class="keyword">int</span><span> j = 0; j < datagridview.Columns.Count; j++) </span></span></li><li class=""><span> { </span></li><li class="alt"><span> DataGridViewColumn tmpcol = datagridview.Columns[j]; </span></li><li class=""><span> <span class="keyword">if</span><span> (tmpcol.DisplayIndex == c) </span></span></li><li class="alt"><span> { </span></li><li class=""><span> <span class="keyword">if</span><span> (tmpcol.Visible) </span><span class="comment">//不显示的隐藏列初始化为tag＝0</span><span> </span></span></li><li class="alt"><span> { </span></li><li class=""><span> headers[c - m] = tmpcol.HeaderText; </span></li><li class="alt"><span> i = c - m + 65; </span></li><li class=""><span> columns[c - m] = Convert.ToString((<span class="keyword">char</span><span>)i); </span></span></li><li class="alt"><span> colName[c - m] = tmpcol.Name; </span></li><li class=""><span> } </span></li><li class="alt"><span> <span class="keyword">else</span><span> </span></span></li><li class=""><span> { </span></li><li class="alt"><span> m++; </span></li><li class=""><span> } </span></li><li class="alt"><span> <span class="keyword">break</span><span>; </span></span></li><li class=""><span> } </span></li><li class="alt"><span> } </span></li><li class=""><span> } </span></li><li class="alt"><span> </span></li><li class=""><span> <span class="keyword">try</span><span> </span></span></li><li class="alt"><span> { </span></li><li class=""><span> <span class="comment">// Get the class type and instantiate Excel.</span><span> </span></span></li><li class="alt"><span> Type objClassType; </span></li><li class=""><span> objClassType = Type.GetTypeFromProgID(<span class="string">"Excel.Application"</span><span>); </span></span></li><li class="alt"><span> objApp_Late = Activator.CreateInstance(objClassType); </span></li><li class=""><span> <span class="comment">//Get the workbooks collection.</span><span> </span></span></li><li class="alt"><span> objBooks_Late = objApp_Late.GetType().InvokeMember(<span class="string">"Workbooks"</span><span>, BindingFlags.GetProperty, </span><span class="keyword">null</span><span>, objApp_Late, </span><span class="keyword">null</span><span>); </span></span></li><li class=""><span> <span class="comment">//Add a new workbook.</span><span> </span></span></li><li class="alt"><span> objBook_Late = objBooks_Late.GetType().InvokeMember(<span class="string">"Add"</span><span>, BindingFlags.InvokeMethod, </span><span class="keyword">null</span><span>, objBooks_Late, </span><span class="keyword">null</span><span>); </span></span></li><li class=""><span> <span class="comment">//Get the worksheets collection.</span><span> </span></span></li><li class="alt"><span> objSheets_Late = objBook_Late.GetType().InvokeMember(<span class="string">"Worksheets"</span><span>, BindingFlags.GetProperty, </span><span class="keyword">null</span><span>, objBook_Late, </span><span class="keyword">null</span><span>); </span></span></li><li class=""><span> <span class="comment">//Get the first worksheet.</span><span> </span></span></li><li class="alt"><span> Parameters = <span class="keyword">new</span><span> Object[1]; </span></span></li><li class=""><span> Parameters[0] = 1; </span></li><li class="alt"><span> objSheet_Late = objSheets_Late.GetType().InvokeMember(<span class="string">"Item"</span><span>, BindingFlags.GetProperty, </span><span class="keyword">null</span><span>, objSheets_Late, Parameters); </span></span></li><li class=""><span> </span></li><li class="alt"><span> <span class="keyword">if</span><span> (captions) </span></span></li><li class=""><span> { </span></li><li class="alt"><span> <span class="comment">// Create the headers in the first row of the sheet</span><span> </span></span></li><li class=""><span> <span class="keyword">for</span><span> (c = 0; c < datagridview.DisplayedColumnCount(</span><span class="keyword">true</span><span>); c++) </span></span></li><li class="alt"><span> { </span></li><li class=""><span> <span class="comment">//Get a range object that contains cell.</span><span> </span></span></li><li class="alt"><span> Parameters = <span class="keyword">new</span><span> Object[2]; </span></span></li><li class=""><span> Parameters[0] = columns[c] + <span class="string">"1"</span><span>; </span></span></li><li class="alt"><span> Parameters[1] = Missing.Value; </span></li><li class=""><span> objRange_Late = objSheet_Late.GetType().InvokeMember(<span class="string">"Range"</span><span>, BindingFlags.GetProperty, </span><span class="keyword">null</span><span>, objSheet_Late, Parameters); </span></span></li><li class="alt"><span> <span class="comment">//Write Headers in cell.</span><span> </span></span></li><li class=""><span> Parameters = <span class="keyword">new</span><span> Object[1]; </span></span></li><li class="alt"><span> Parameters[0] = headers[c]; </span></li><li class=""><span> objRange_Late.GetType().InvokeMember(<span class="string">"Value"</span><span>, BindingFlags.SetProperty, </span><span class="keyword">null</span><span>, objRange_Late, Parameters); </span></span></li><li class="alt"><span> } </span></li><li class=""><span> } </span></li><li class="alt"><span> </span></li><li class=""><span> <span class="comment">// Now add the data from the grid to the sheet starting in row 2</span><span> </span></span></li><li class="alt"><span> <span class="keyword">for</span><span> (i = 0; i < datagridview.RowCount; i++) </span></span></li><li class=""><span> { </span></li><li class="alt"><span> c = 0; </span></li><li class=""><span> <span class="keyword">foreach</span><span> (</span><span class="keyword">string</span><span> txtCol </span><span class="keyword">in</span><span> colName) </span></span></li><li class="alt"><span> { </span></li><li class=""><span> DataGridViewColumn col = datagridview.Columns[txtCol]; </span></li><li class="alt"><span> <span class="keyword">if</span><span> (col.Visible) </span></span></li><li class=""><span> { </span></li><li class="alt"><span> <span class="comment">//Get a range object that contains cell.</span><span> </span></span></li><li class=""><span> Parameters = <span class="keyword">new</span><span> Object[2]; </span></span></li><li class="alt"><span> Parameters[0] = columns[c] + Convert.ToString(i + 2); </span></li><li class=""><span> Parameters[1] = Missing.Value; </span></li><li class="alt"><span> objRange_Late = objSheet_Late.GetType().InvokeMember(<span class="string">"Range"</span><span>, BindingFlags.GetProperty, </span><span class="keyword">null</span><span>, objSheet_Late, Parameters); </span></span></li><li class=""><span> <span class="comment">//Write Headers in cell.</span><span> </span></span></li><li class="alt"><span> Parameters = <span class="keyword">new</span><span> Object[1]; </span></span></li><li class=""><span> <span class="comment">//Parameters[0] = datagridview.Rows[i].Cells[headers[c]].Value.ToString();</span><span> </span></span></li><li class="alt"><span> Parameters[0] = datagridview.Rows[i].Cells[col.Name].Value.ToString(); </span></li><li class=""><span> objRange_Late.GetType().InvokeMember(<span class="string">"Value"</span><span>, BindingFlags.SetProperty, </span><span class="keyword">null</span><span>, objRange_Late, Parameters); </span></span></li><li class="alt"><span> c++; </span></li><li class=""><span> } </span></li><li class="alt"><span> </span></li><li class=""><span> } </span></li><li class="alt"><span> } </span></li><li class=""><span> </span></li><li class="alt"><span> <span class="comment">//Return control of Excel to the user.</span><span> </span></span></li><li class=""><span> Parameters = <span class="keyword">new</span><span> Object[1]; </span></span></li><li class="alt"><span> Parameters[0] = <span class="keyword">true</span><span>; </span></span></li><li class=""><span> objApp_Late.GetType().InvokeMember(<span class="string">"Visible"</span><span>, BindingFlags.SetProperty, </span></span></li><li class="alt"><span> <span class="keyword">null</span><span>, objApp_Late, Parameters); </span></span></li><li class=""><span> objApp_Late.GetType().InvokeMember(<span class="string">"UserControl"</span><span>, BindingFlags.SetProperty, </span></span></li><li class="alt"><span> <span class="keyword">null</span><span>, objApp_Late, Parameters); </span></span></li><li class=""><span> } </span></li><li class="alt"><span> <span class="keyword">catch</span><span> (Exception theException) </span></span></li><li class=""><span> { </span></li><li class="alt"><span> String errorMessage; </span></li><li class=""><span> errorMessage = <span class="string">"Error: "</span><span>; </span></span></li><li class="alt"><span> errorMessage = String.Concat(errorMessage, theException.Message); </span></li><li class=""><span> errorMessage = String.Concat(errorMessage, <span class="string">" Line: "</span><span>); </span></span></li><li class="alt"><span> errorMessage = String.Concat(errorMessage, theException.Source); </span></li><li class=""><span> </span></li><li class="alt"><span> MessageBox.Show(errorMessage, <span class="string">"Error"</span><span>); </span></span></li><li class=""><span> } </span></li><li class="alt"><span> } </span></li></ol><div class="save_code tracking-ad" data-mod="popu_249"><a href="javascript:;"><img src="http://static.blog.csdn.net/images/save_snippets.png"></a></div></div><pre name="code" class="csharp" style="display: none;">private void Export2Excel(DataGridView datagridview, bool captions)
{
object objApp_Late;
object objBook_Late;
object objBooks_Late;
object objSheets_Late;
object objSheet_Late;
object objRange_Late;
object[] Parameters;
string[] headers = new string[datagridview.DisplayedColumnCount(true)];
string[] columns = new string[datagridview.DisplayedColumnCount(true)];
string[] colName = new string[datagridview.DisplayedColumnCount(true)];
int i = 0;
int c = 0;
int m = 0;
for (c = 0; c < datagridview.Columns.Count; c++)
{
for (int j = 0; j < datagridview.Columns.Count; j++)
{
DataGridViewColumn tmpcol = datagridview.Columns[j];
if (tmpcol.DisplayIndex == c)
{
if (tmpcol.Visible) //不显示的隐藏列初始化为tag＝0
{
headers[c - m] = tmpcol.HeaderText;
i = c - m + 65;
columns[c - m] = Convert.ToString((char)i);
colName[c - m] = tmpcol.Name;
}
else
{
m++;
}
break;
}
}
}
try
{
// Get the class type and instantiate Excel.
Type objClassType;
objClassType = Type.GetTypeFromProgID("Excel.Application");
objApp_Late = Activator.CreateInstance(objClassType);
//Get the workbooks collection.
objBooks_Late = objApp_Late.GetType().InvokeMember("Workbooks", BindingFlags.GetProperty, null, objApp_Late, null);
//Add a new workbook.
objBook_Late = objBooks_Late.GetType().InvokeMember("Add", BindingFlags.InvokeMethod, null, objBooks_Late, null);
//Get the worksheets collection.
objSheets_Late = objBook_Late.GetType().InvokeMember("Worksheets", BindingFlags.GetProperty, null, objBook_Late, null);
//Get the first worksheet.
Parameters = new Object[1];
Parameters[0] = 1;
objSheet_Late = objSheets_Late.GetType().InvokeMember("Item", BindingFlags.GetProperty, null, objSheets_Late, Parameters);
if (captions)
{
// Create the headers in the first row of the sheet
for (c = 0; c < datagridview.DisplayedColumnCount(true); c++)
{
//Get a range object that contains cell.
Parameters = new Object[2];
Parameters[0] = columns[c] + "1";
Parameters[1] = Missing.Value;
objRange_Late = objSheet_Late.GetType().InvokeMember("Range", BindingFlags.GetProperty, null, objSheet_Late, Parameters);
//Write Headers in cell.
Parameters = new Object[1];
Parameters[0] = headers[c];
objRange_Late.GetType().InvokeMember("Value", BindingFlags.SetProperty, null, objRange_Late, Parameters);
}
}
// Now add the data from the grid to the sheet starting in row 2
for (i = 0; i < datagridview.RowCount; i++)
{
c = 0;
foreach (string txtCol in colName)
{
DataGridViewColumn col = datagridview.Columns[txtCol];
if (col.Visible)
{
//Get a range object that contains cell.
Parameters = new Object[2];
Parameters[0] = columns[c] + Convert.ToString(i + 2);
Parameters[1] = Missing.Value;
objRange_Late = objSheet_Late.GetType().InvokeMember("Range", BindingFlags.GetProperty, null, objSheet_Late, Parameters);
//Write Headers in cell.
Parameters = new Object[1];
//Parameters[0] = datagridview.Rows[i].Cells[headers[c]].Value.ToString();
Parameters[0] = datagridview.Rows[i].Cells[col.Name].Value.ToString();
objRange_Late.GetType().InvokeMember("Value", BindingFlags.SetProperty, null, objRange_Late, Parameters);
c++;
}
}
}
//Return control of Excel to the user.
Parameters = new Object[1];
Parameters[0] = true;
objApp_Late.GetType().InvokeMember("Visible", BindingFlags.SetProperty,
null, objApp_Late, Parameters);
objApp_Late.GetType().InvokeMember("UserControl", BindingFlags.SetProperty,
null, objApp_Late, Parameters);
}
catch (Exception theException)
{
String errorMessage;
errorMessage = "Error: ";
errorMessage = String.Concat(errorMessage, theException.Message);
errorMessage = String.Concat(errorMessage, " Line: ");
errorMessage = String.Concat(errorMessage, theException.Source);
MessageBox.Show(errorMessage, "Error");
}
}</pre><div class="dp-highlighter bg_csharp"><div class="bar"><div class="tools"><b>[csharp]</b> <a href="#" class="ViewSource" title="view plain" onclick="dp.sh.Toolbar.Command('ViewSource',this);return false;">view plain</a><span data-mod="popu_168"> <a href="#" class="CopyToClipboard" title="copy" onclick="dp.sh.Toolbar.Command('CopyToClipboard',this);return false;">copy</a><div style="position: absolute; left: 446px; top: 7236px; width: 18px; height: 18px; z-index: 99;"><embed id="ZeroClipboardMovie_4" src="http://static.blog.csdn.net/scripts/ZeroClipboard/ZeroClipboard.swf" loop="false" menu="false" quality="best" bgcolor="#ffffff" width="18" height="18" name="ZeroClipboardMovie_4" align="middle" allowscriptaccess="always" allowfullscreen="false" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" flashvars="id=4&width=18&height=18" wmode="transparent"></div></span><span data-mod="popu_169"> <a href="#" class="PrintSource" title="print" onclick="dp.sh.Toolbar.Command('PrintSource',this);return false;">print</a></span><a href="#" class="About" title="?" onclick="dp.sh.Toolbar.Command('About',this);return false;">?</a></div></div><ol start="1" class="dp-c"><li class="alt"><span><span>导出 </span></span></li></ol><div class="save_code tracking-ad" data-mod="popu_249"><a href="javascript:;"><img src="http://static.blog.csdn.net/images/save_snippets.png"></a></div></div><pre name="code" class="csharp" style="display: none;">导出</pre>
<pre></pre>
<pre style="margin-top:0px; margin-bottom:0px; padding:0px; white-space:pre-wrap; word-wrap:break-word; line-height:18px; font-family:'Courier New'!important"><div class="dp-highlighter bg_csharp"><div class="bar"><div class="tools"><b>[csharp]</b> <a href="#" class="ViewSource" title="view plain" onclick="dp.sh.Toolbar.Command('ViewSource',this);return false;">view plain</a><span data-mod="popu_168"> <a href="#" class="CopyToClipboard" title="copy" onclick="dp.sh.Toolbar.Command('CopyToClipboard',this);return false;">copy</a><div style="position: absolute; left: 446px; top: 7305px; width: 18px; height: 18px; z-index: 99;"><embed id="ZeroClipboardMovie_5" src="http://static.blog.csdn.net/scripts/ZeroClipboard/ZeroClipboard.swf" loop="false" menu="false" quality="best" bgcolor="#ffffff" width="18" height="18" name="ZeroClipboardMovie_5" align="middle" allowscriptaccess="always" allowfullscreen="false" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" flashvars="id=5&width=18&height=18" wmode="transparent"></div></span><span data-mod="popu_169"> <a href="#" class="PrintSource" title="print" onclick="dp.sh.Toolbar.Command('PrintSource',this);return false;">print</a></span><a href="#" class="About" title="?" onclick="dp.sh.Toolbar.Command('About',this);return false;">?</a></div></div><ol start="1" class="dp-c"><li class="alt"><span><span>System.Type ExcelType = System.Type.GetTypeFromProgID(</span><span class="string">"Excel.Application"</span><span>); </span></span></li><li class=""><span>Microsoft.Office.Interop.Excel.Application obj = Activator.CreateInstance(ExcelType) <span class="keyword">as</span><span> Microsoft.Office.Interop.Excel.Application; </span></span></li></ol><div class="save_code tracking-ad" data-mod="popu_249"><a href="javascript:;"><img src="http://static.blog.csdn.net/images/save_snippets.png"></a></div></div><pre name="code" class="csharp" style="display: none;">System.Type ExcelType = System.Type.GetTypeFromProgID("Excel.Application");
Microsoft.Office.Interop.Excel.Application obj = Activator.CreateInstance(ExcelType) as Microsoft.Office.Interop.Excel.Application;
</pre><br></pre>
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