download excel file from datagrid for webpage

/// <summary>

/// Summary description for WebExcelUtil.

/// </summary>

public sealed class WebExcelUtil

{

public static void GenerateExcel(DataSet objDS, HttpResponse objResponse)

{

if (objDS==null) return;

objResponse.Clear();

objResponse.Buffer = false;

objResponse.Charset = "GB2312";

objResponse.AppendHeader("Content-Disposition", "attachment;filename=Result.xls");

objResponse.ContentEncoding = Encoding.GetEncoding("GB2312");

objResponse.ContentType = "application/vnd.ms-excel";

objResponse.Write("<meta http-equiv=Content-Type content=\"text/html; charset=GB2312\">");

StringWriter objStringWrite = new StringWriter();

HtmlTextWriter objHtmlWriter = new HtmlTextWriter(objStringWrite);

DataGrid objDataGrid = new DataGrid();

objDataGrid.DataSource = objDS.Tables[0];

objDataGrid.DataBind();

objDataGrid.RenderControl(objHtmlWriter);

objResponse.Write(objStringWrite.ToString());

objResponse.End();

}

public static void GenerateExcel(DataGrid objDataGrid, HttpResponse objResponse)

{

objResponse.Clear();

objResponse.Buffer = false;

objResponse.Charset = "GB2312";

objResponse.AppendHeader("Content-Disposition", "attachment;filename=Result.xls");

objResponse.ContentEncoding = Encoding.GetEncoding("GB2312");

objResponse.ContentType = "application/vnd.ms-excel";

objResponse.Write("<meta http-equiv=Content-Type content=\"text/html; charset=GB2312\">");

StringWriter objStringWrite = new StringWriter();

HtmlTextWriter objHtmlWriter = new HtmlTextWriter(objStringWrite);

objDataGrid.RenderControl(objHtmlWriter);

objResponse.Write(objStringWrite.ToString());

objResponse.End();

}

}