利用Spire.DataExport将数据(Database/DataTable)导成各种文件

借助Spire.DataExport可以很方便的将Database或者DataTable里的数据导成XLS, PDF and MS Word, HTML, MS ,XML, PDF, DBF, SQL Script, SYLK, DIF, CSV文件或者剪切板里而且机器上并不需要安装Microsoft Excel ,Microsoft Access ,Adobe Acrobat.转换后的数据可以输出到File,HttpResponse,Stream里.

当前的免费Spire.DataExport对日期类型的数据存在一个Bug:导出的数据会丢失时间部分,这个问题在以后的版本可能会解决掉,在没修正这个Bug前需要采取别的措施,比喻将时间类型转换成字符串类型.

如果要从Database里查询数据并输出成文件,需要指定相应的导出格式对象实例的DataSource属性为ExportSource.SqlCommand,并为Columns和SQLCommand属性赋相应的值.如果直接将DataTable输出成文件,则需要指定DataSource属性为ExportSource.DataTable.DataSource的默认值为ExportSource.SqlCommand.

要用Spire.DataExport组件,项目里需要引用Spire.License.dll,Spire.DataExport.ResourceMgr.dll,Spire.DataExport.dll.

以下示例将一个DataTable输出成XLS文件:

static void ExportToXLS(DataTable dbTable, string strFileName)
{
CellExport cellExport = new CellExport();

cellExport.ActionAfterExport = ActionType.None;
cellExport.AutoFitColWidth = true;
cellExport.DataFormats.CultureName = "en-US";
cellExport.DataFormats.Currency = "#,###,##0.00";
cellExport.DataFormats.DateTime = "yyyyhhmm HHmmss";
cellExport.DataFormats.Float = "#,###,##0.00";
cellExport.DataFormats.Integer = "#,###,##0";
cellExport.DataFormats.Time = "H:mm";
cellExport.SheetOptions.AggregateFormat.Font.Name = "Arial";
cellExport.SheetOptions.CustomDataFormat.Font.Name = "Arial";
cellExport.SheetOptions.DefaultFont.Name = "Arial";
cellExport.SheetOptions.FooterFormat.Font.Name = "Arial";
cellExport.SheetOptions.HeaderFormat.Font.Name = "Arial";
cellExport.SheetOptions.HyperlinkFormat.Font.Color = CellColor.Blue;
cellExport.SheetOptions.HyperlinkFormat.Font.Name = "Arial";
cellExport.SheetOptions.HyperlinkFormat.Font.Underline = XlsFontUnderline.Single;
cellExport.SheetOptions.NoteFormat.Alignment.Horizontal = HorizontalAlignment.Left;
cellExport.SheetOptions.NoteFormat.Alignment.Vertical = VerticalAlignment.Top;
cellExport.SheetOptions.NoteFormat.Font.Bold = true;
cellExport.SheetOptions.NoteFormat.Font.Name = "Tahoma";
cellExport.SheetOptions.NoteFormat.Font.Size = 8F;
cellExport.SheetOptions.TitlesFormat.Font.Bold = true;
cellExport.SheetOptions.TitlesFormat.Font.Name = "Arial";

cellExport.DataSource = ExportSource.DataTable;
cellExport.DataTable = dbTable;
cellExport.FileName = strFileName;
cellExport.SaveToFile();
}以下示例将一个DataTable输出成PDF文件:

static void ExportToPDF(DataTable dbTable, string strFileName)
{
PDFExport pdfExport = new PDFExport();
pdfExport.ActionAfterExport = ActionType.OpenView;
pdfExport.DataFormats.CultureName = "en-US";
pdfExport.DataFormats.Currency = "#,###,##0.00000";
pdfExport.DataFormats.DateTime = "yyyy-M-d HH:mm";
pdfExport.DataFormats.Float = "#,###,##0.00";
pdfExport.DataFormats.Integer = "#,###,##0";
pdfExport.DataFormats.Time = "H:mm";
pdfExport.PDFOptions.PageOptions.Format = PageFormat.User;
pdfExport.PDFOptions.PageOptions.Height = 11.67;
pdfExport.PDFOptions.PageOptions.MarginBottom = 0.78;
pdfExport.PDFOptions.PageOptions.MarginLeft = 1.17;
pdfExport.PDFOptions.PageOptions.MarginRight = 0.57;
pdfExport.PDFOptions.PageOptions.MarginTop = 0.78;
pdfExport.PDFOptions.PageOptions.Width = 8.25;

pdfExport.DataSource = ExportSource.DataTable;
pdfExport.DataTable = dbTable;

pdfExport.FileName = strFileName;
pdfExport.SaveToFile();
}以下示例将一个DataTable输出成HTML文件:

static void ExportToHTML(DataTable dbTable, string strFileName)
{
HTMLExport htmlExport = new HTMLExport();
htmlExport.ActionAfterExport = ActionType.None;
htmlExport.DataFormats.CultureName = "en-US";
htmlExport.DataFormats.Currency = "#,###,##0.00";
htmlExport.DataFormats.DateTime = "yyyy-M-d H:mm";
htmlExport.DataFormats.Float = "#,###,##0.00";
htmlExport.DataFormats.Integer = "#,###,##0";
//htmlExport.DataFormats.Time = "H:mm";
htmlExport.HtmlStyle = HtmlStyle.MSMoney;
htmlExport.HtmlTextOptions.Font = new System.Drawing.Font("Arial", 8F);

htmlExport.DataSource = ExportSource.DataTable;
htmlExport.DataTable = dbTable;

htmlExport.FileName = strFileName;
htmlExport.SaveToFile();
}