使用RenderControl方法把GridView控件导出到EXCEL

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// 把GridView输出到Excel文件 private void ExportExcel(GridView gridView, string title, string title2, string fileName) { int nHideCols = 0; //如果不想输出出某列，将Visible设为false即可 for (int i = 0; i < gridView.Columns.Count; i++) { if (gridView.Columns[i].HeaderText == “设备状态”) { gridView.Columns[i].Visible = false; gridView.Columns[i].ControlStyle.Width = 0; nHideCols = 1; break; } } //设定显示字符集 Response.Charset = “utf-8”; //设定内容字符集 Response.ContentEncoding = Encoding.GetEncoding(“utf-8”);

Asp.net中Response.Charset 与Response.ContentEncoding区别

//设定文件名 Response.AppendHeader(“Content-Disposition”, “attachment;filename=” + HttpUtility.UrlEncode(fileName, Encoding.UTF8).Replace(‘+’, ‘_’).Replace(‘-‘, ‘_’)); //设定文件类型 也可以是application/ms-word,也可以是text/html（字符集设为gb2312） Response.ContentType = “application/ms-excel”; this.EnableViewState = false; using (StringWriter tw = new StringWriter()) {

using (HtmlTextWriter hell = new HtmlTextWriter(tw)) { gridView.AllowPaging = false; gridView.RenderControl(hell);

string s = tw.ToString(); s = s.Replace(“\r\n”, “”); int index = s.IndexOf(“<tr”); //可以自定义Excel文件的标题 string head = “<tr><td colspan=\”” + (gridView.Columns.Count – nHideCols).ToString() + “\” style=\”text-align: center; height: 42px; font-size: 24px; font-weight: bolder; color: #000000;\”>” + title + “</td></tr>” + “<tr><td colspan=\”” + (gridView.Columns.Count – nHideCols).ToString() + “\” style=\”text-align: center; height: 24px; font-size: 12px; color: #000000;\”>” + title2 + “</td></tr>”; //使用Index来判断是否存在数据，当然也可以用gridView.Rows.Count来判断 if (index != -1) { //有数据的 s = s.Insert(index, head); } else { //没有数据的时候 s = “<table cellspacing=\”0\” cellpadding=\”3\” rules=\”rows\” border=\”1\” id=\”” + gridView.ID + “\” style=\”background-color:White;border-color:#E7E7FF;border-width:1px;border-style:None;border-collapse:collapse;\”>” + head + “</table>”; } Response.Write(s); Response.End(); } } }

//同时vs2005,vs2003会报错“类型“ExGridView”的控件“GridViewMaster”必须放在具有 runat=server 的窗体标记内 //需要添加下面取消对GridViewMaster 控件验证的方法 public override void VerifyRenderingInServerForm(Control control) { if (!control.GetType().Equals(gridView.GetType())) { base.VerifyRenderingInServerForm(control); } }

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