C# 导出excel文件处理科学计数法办法

在邦定gridview控件时在rowdatabound事件中队数据格式化

protected void DataGridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
/* 文本：vnd.ms-excel.numberformat:@
日期：vnd.ms-excel.numberformat:yyyy/mm/dd
数字：vnd.ms-excel.numberformat:#,##0.00
货币：vnd.ms-excel.numberformat:￥#,##0.00
百分比：vnd.ms-excel.numberformat: #0.00%
**/
for (int i = 0; i < e.Row.Cells.Count; i++)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
e.Row.Cells[i ].Attributes.Add("style", "vnd.ms-excel.numberformat:@");
}
}
}

protected void btnOut_Click(object sender, EventArgs e)
{
Response.Clear();
Response.Buffer = true;
Response.Charset = "GB2312";
Response.AppendHeader("Content-Disposition", "attachment;filename=FileName.xls");
Response.ContentEncoding = System.Text.Encoding.UTF7;
//设置输出文件类型为excel文件。
Response.ContentType = "application/ms-excel";
System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
this.gError.RenderControl(oHtmlTextWriter);
Response.Output.Write(oStringWriter.ToString());
Response.Flush();
Response.End();
}