DataTable数据导出到EXCEL
穆恩特(muent.com)教程 DataTable数据导出到EXCEL
以下为引用的内容: /// <summary> /// 将DataTable数据导出到EXCEL,调用该方法后自动返回可下载的文件流 /// </summary> /// <param name="dtData">要导出的数据源</param> public static void DataTable1Excel(System.Data.DataTable dtData) { System.Web.UI.WebControls.GridView gvExport = null; // 当前对话 System.Web.HttpContext curContext = System.Web.HttpContext.Current; // IO用于导出并返回excel文件 System.IO.StringWriter strWriter = null; System.Web.UI.HtmlTextWriter htmlWriter = null; if (dtData != null) { // 设置编码和附件格式 curContext.Response.ContentType = "application/vnd.ms-excel"; curContext.Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312"); curContext.Response.Charset = "utf-8"; // 导出excel文件 strWriter = new System.IO.StringWriter(); htmlWriter = new System.Web.UI.HtmlTextWriter(strWriter); // 为了解决gvData中可能进行了分页的情况,需要重新定义一个无分页的GridView gvExport = new System.Web.UI.WebControls.GridView(); gvExport.DataSource = dtData.DefaultView; gvExport.AllowPaging = false; gvExport.DataBind(); // 返回客户端 gvExport.RenderControl(htmlWriter); curContext.Response.Write("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=gb2312\" />" + strWriter.ToString()); curContext.Response.End(); } } /// <summary> /// 直接输出Excel /// </summary> /// <param name="dtData"></param> public static void DataTable2Excel(System.Data.DataTable dtData) { System.Web.UI.WebControls.DataGrid dgExport = null; // 当前对话 System.Web.HttpContext curContext = System.Web.HttpContext.Current; // IO用于导出并返回excel文件 System.IO.StringWriter strWriter = null; System.Web.UI.HtmlTextWriter htmlWriter = null; if (dtData != null) { // 设置编码和附件格式 curContext.Response.ContentType = "application/vnd.ms-excel"; curContext.Response.ContentEncoding =System.Text.Encoding.UTF8; curContext.Response.Charset = ""; // 导出excel文件 strWriter = new System.IO.StringWriter(); htmlWriter = new System.Web.UI.HtmlTextWriter(strWriter); // 为了解决dgData中可能进行了分页的情况,需要重新定义一个无分页的DataGrid dgExport = new System.Web.UI.WebControls.DataGrid(); dgExport.DataSource = dtData.DefaultView; dgExport.AllowPaging = false; dgExport.DataBind(); // 返回客户端 dgExport.RenderControl(htmlWriter); curContext.Response.Write(strWriter.ToString()); curContext.Response.End(); } } /// <summary> /// dtData是要导出为Excel的DataTable,FileName是要导出的Excel文件名(不加.xls) /// </summary> /// <param name="dtData"></param> /// <param name="FileName"></param> private void DataTable3Excel(System.Data.DataTable dtData, String FileName) { System.Web.UI.WebControls.GridView dgExport = null; //当前对话 System.Web.HttpContext curContext = System.Web.HttpContext.Current; //IO用于导出并返回excel文件 System.IO.StringWriter strWriter = null; System.Web.UI.HtmlTextWriter htmlWriter = null; if (dtData != null) { //设置编码和附件格式 //System.Web.HttpUtility.UrlEncode(FileName, System.Text.Encoding.UTF8)作用是方式中文文件名乱码 curContext.Response.AddHeader("content-disposition", "attachment;filename=" + System.Web.HttpUtility.UrlEncode(FileName, System.Text.Encoding.UTF8) + ".xls"); curContext.Response.ContentType = "application nd.ms-excel"; curContext.Response.ContentEncoding = System.Text.Encoding.UTF8; curContext.Response.Charset = "GB2312"; //导出Excel文件 strWriter = new System.IO.StringWriter(); htmlWriter = new System.Web.UI.HtmlTextWriter(strWriter); //为了解决dgData中可能进行了分页的情况,需要重新定义一个无分页的GridView dgExport = new System.Web.UI.WebControls.GridView(); dgExport.DataSource = dtData.DefaultView; dgExport.AllowPaging = false; dgExport.DataBind(); //下载到客户端 dgExport.RenderControl(htmlWriter); curContext.Response.Write(strWriter.ToString()); curContext.Response.End(); } } /// <summary> /// Datatable to Excel带自定文件名的导出 /// </summary> /// <param name="dt"></param> /// <param name="FileName"></param> private void DataTable4Excel(System.Data.DataTable dt, string FileName) { System.IO.StringWriter stringWriter = new System.IO.StringWriter(); HtmlTextWriter htmlWriter = new HtmlTextWriter(stringWriter); DataGrid excel = new DataGrid(); //System.Web.UI.WebControls.TableItemStyle AlternatingStyle = new TableItemStyle(); System.Web.UI.WebControls.TableItemStyle headerStyle = new TableItemStyle(); //System.Web.UI.WebControls.TableItemStyle itemStyle = new TableItemStyle(); //AlternatingStyle.BackColor = System.Drawing.Color.LightGray; headerStyle.BackColor = System.Drawing.Color.LightGray; headerStyle.Font.Bold = true; headerStyle.HorizontalAlign = System.Web.UI.WebControls.HorizontalAlign.Center; //itemStyle.HorizontalAlign = System.Web.UI.WebControls.HorizontalAlign.Center; ; //excel.AlternatingItemStyle.MergeWith(AlternatingStyle); excel.HeaderStyle.MergeWith(headerStyle); //excel.ItemStyle.MergeWith(itemStyle); excel.GridLines = GridLines.Both; excel.HeaderStyle.Font.Bold = true; excel.DataSource = dt.DefaultView; //输出DataTable的内容 excel.DataBind(); //for (int i = 0; i < excel.Items.Count; i++) //{ // //excel.Columns[3].ItemStyle.CssClass = "xlsText"; // //excel.Items[i].Cells[3].Style.Add("mso-number-format", "\"@\""); // for (int j = 0; j < aColTxtFormat.Length; j++) // { // int nCol = aColTxtFormat[j]; // excel.Items[i].Cells[nCol].Attributes.Add("style", "vnd.ms-excel.numberformat:@"); // } / |