用MyXls生成Excel报表（C#）总结

总结了一下MyXls导出Excle，分页之后导出全部数据。当然还有一些简单的方法。但是功能就局限了。

一：（网上搜集）

MyXLS 是一个快速和简单的读写 Excel 文件的 .NET 组件，可用在 ASP.NET 网站和 .NET 应用程序中，无需安装 Excel 程序，支持 Excel 97 以及以后的版本。

目前MyXls已经实现了单元格（cell）的格式设置，包括文本颜色、文本大小、字体、单位格边框、底色、列宽、行高，合并单元格，多个sheet页等功能。以下是MyXLS组件的一些用法：

1.创建一个Excel文档：

XlsDocument xls =new XlsDocument();

2.创建一个WorkSheet：

Worksheet ws = xls.Workbook.Worksheets.Add("WorkSheet1");

3.指定列格式：

ColumnInfo colInfo =new ColumnInfo(xls, ws);

colInfo.ColumnIndexStart =;

colInfo.ColumnIndexEnd =17;

colInfo.Width =15*256;

ws.AddColumnInfo(colInfo);

列格式必须每次都要重新定义，一个列格式不能重复使用。

4.指定单元格样式：

XF xf = xls.NewXF();

xf.HorizontalAlignment = HorizontalAlignments.Centered;

xf.VerticalAlignment = VerticalAlignments.Centered;

xf.Pattern =1;

xf.PatternColor = Colors.Default30;

xf.UseBorder =true;

xf.TopLineStyle =1;

xf.TopLineColor = Colors.Black;

xf.BottomLineStyle =1;

xf.BottomLineColor = Colors.Black; xf.LeftLineStyle =1;

xf.LeftLineColor = Colors.Black;

xf.RightLineStyle =1;

xf.RightLineColor = Colors.Black;

xf.Font.Bold =true;

xf.Font.Height =11*20;

xf.Font.ColorIndex =1;

5.给单元格赋值：

ws.Cells.Add(2, 3, "金额(万元)", xf);

6.合并单元格：

ws.Cells.Merge(1, 2, 2, 2); //或者ws.AddMergeArea(new MergeArea(1, 2, 1, 1));
7.MyXls合并单元格有个bug，就是合并后只是第一个单元格有样式，其余的样式丢失。所以写了个函数来合并：

MergeRegion(ref ws, xf, "机构", 1, 1, 2, 1);

publicvoid MergeRegion(ref Worksheet ws, XF xf, string title, int startRow, int startCol, int endRow, int endCol)

{

for (int i = startCol; i <= endCol; i++)

{

for (int j = startRow; j <= endRow; j++)

{

　　　　 ws.Cells.Add(j, i, title, xf);

}

}

ws.Cells.Merge(startRow, endRow, startCol, endCol); }

虽然效率不怎么样，但是对于出Excel报表，还OK。

8.指定单元格格式：

cell.Format = StandardFormats.Decimal_1;

具体更多请参考源代码的StandardFormats类。

9.保存或者发送Excel：

xls.Send(); //或者xls.Save();

二、结合项目

实例：

View Code

protected void btnExcel_Click(object sender, EventArgs e)
{
DataTable dt = (DataTable)ViewState["dt"];
string item = "客户：" + name + " 从" + start + "至" + end + " 采购详单";
ExcelExport(dt, item);
}
//先添加引用给出的DLL文件
private void ExcelExport(DataTable dt, string item)
{

XlsDocument xls = new XlsDocument();
xls.FileName = "采购详单.xls";//指定文件名

Worksheet sheet = xls.Workbook.Worksheets.Add("Inventory");

#region 设置各数据列的大小
ColumnInfo colInfo = null;
int a = 0;
int b = 0;
//15列
for (int i = 0; i < 15; i++)
{
a = i == 0 ? 0 : (i + 1);
b = i == 0 ? 1 : (i + 1);
colInfo = new ColumnInfo(xls, sheet);
colInfo.ColumnIndexStart = (ushort)a;
colInfo.ColumnIndexEnd = (ushort)b;
colInfo.Width = 13 * 256;
sheet.AddColumnInfo(colInfo);
}
#endregion

Cells cells = sheet.Cells;

#region 合并单元格，得到报表标题
//第一行标题
MergeArea maTitle = new MergeArea(1, 2, 1, 15);
sheet.AddMergeArea(maTitle);
XF xfTitle = xls.NewXF();
xfTitle.HorizontalAlignment = HorizontalAlignments.Centered;
xfTitle.VerticalAlignment = VerticalAlignments.Centered;
xfTitle.Font.FontName = "宋体";
xfTitle.Font.Height = 16 * 20;
xfTitle.Font.Bold = true;
cells.Add(1, 1, "采购订单明细", xfTitle);
#endregion

//第二行描述
MergeArea maTime1 = new MergeArea(3, 3, 1, 15);
sheet.AddMergeArea(maTime1);
XF xfTopBar = xls.NewXF();
xfTopBar.Font.FontName = "宋体";
//item为描述内容
cells.Add(3, 1, item, xfTopBar);

#region 设置Excel数据列标题的格式
XF xfDataHead = xls.NewXF();
xfDataHead.HorizontalAlignment = HorizontalAlignments.Centered;
xfDataHead.VerticalAlignment = VerticalAlignments.Centered;
xfDataHead.Font.FontName = "宋体";
xfDataHead.Font.Bold = true;
xfDataHead.UseBorder = true;
xfDataHead.BottomLineStyle = 1;
xfDataHead.BottomLineColor = Colors.Black;
xfDataHead.TopLineStyle = 1;
xfDataHead.TopLineColor = Colors.Black;
xfDataHead.LeftLineStyle = 1;
xfDataHead.LeftLineColor = Colors.Black;
xfDataHead.RightLineStyle = 1;
xfDataHead.RightLineColor = Colors.Black;
#endregion

#region 添加列标题
cells.Add(4, 1, "单据号", xfDataHead);
cells.Add(4, 2, "产品名称", xfDataHead);
cells.Add(4, 3, "规格", xfDataHead);
cells.Add(4, 4, "厚度", xfDataHead);
cells.Add(4, 5, "等级", xfDataHead);
cells.Add(4, 6, "单位", xfDataHead);
cells.Add(4, 7, "数量", xfDataHead);
cells.Add(4, 8, "过度", xfDataHead);
cells.Add(4, 9, "包装", xfDataHead);
cells.Add(4, 10, "销售区域", xfDataHead);
cells.Add(4, 11, "颜色", xfDataHead);
cells.Add(4, 12, "单位代码", xfDataHead);
cells.Add(4, 13, "包装代码", xfDataHead);
cells.Add(4, 14, "单价", xfDataHead);
cells.Add(4, 15, "单价", xfDataHead);
#endregion

#region 设置各数据列的格式

XF xfData = xls.NewXF();
xfData.Font.FontName = "宋体";
xfData.UseBorder = true;
xfData.BottomLineStyle = 1;
xfData.BottomLineColor = Colors.Black;
xfData.TopLineStyle = 1;
xfData.TopLineColor = Colors.Black;
xfData.LeftLineStyle = 1;
xfData.LeftLineColor = Colors.Black;
xfData.RightLineStyle = 1;
xfData.RightLineColor = Colors.Black;
#endregion

#region 填充数据

int j = 5;//从第五行开始为数据行

double provideTotal = 0;

double useTotal = 0;

double lossTotal = 0;

foreach (DataRow dr in dt.Rows)
{

cells.Add(j, 1, dr["djno"], xfData);
cells.Add(j, 2, dr["itemname"], xfData);
cells.Add(j, 3, dr["specs"], xfData);
cells.Add(j, 4, dr["ply"], xfData);
cells.Add(j, 5, dr["rank"], xfData);
cells.Add(j, 6, dr["ut"], xfData);
cells.Add(j, 7, dr["num"], xfData);
cells.Add(j, 8, dr["transcolor"], xfData);
cells.Add(j, 9, dr["packname"], xfData);
cells.Add(j, 10, dr["salesarea"], xfData);
cells.Add(j, 11, dr["color"], xfData);
cells.Add(j, 12, dr["utno"], xfData);
cells.Add(j, 13, dr["packno"], xfData);
cells.Add(j, 14, dr["zkprice"], xfData);
cells.Add(j, 15, dr["zkamt"], xfData);
j++;

}
#endregion
string path = Server.MapPath("~/");
xls.Save(path + "\\excel\\", true);
string down = Server.MapPath("~/") + "\\excel\\" + xls.FileName;
FileInfo DownloadFile = new FileInfo(down);
Response.Clear();
Response.ClearHeaders();
Response.Buffer = false;
Response.ContentType = "application/octet-stream";
Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(xls.FileName, System.Text.Encoding.UTF8));
Response.AppendHeader("Content-Length", DownloadFile.Length.ToString());
Response.WriteFile(DownloadFile.FullName);
Response.Flush();
Response.End();
//xls.Send();
}

效果图下载：效果

下载：org.in2bits.MyXls