在aspx頁面中將DataTable中的資料通過GridView匯出到Excel中
阿新 • • 發佈:2019-01-29
按鈕單擊事件呼叫ExportToExcel方法
protected void ToExcel_Click(object sender, EventArgs e)
{
CCourse cc = new CCourse();
DataTable dt = cc.GetAllCourse();
dt.Columns["num"].ColumnName = "編號";//設定DataTable列名
ExportToExcel(dt, "excel");
}
將DataTable中的資料通過GridView匯出到Excel中,並顯示下載介面
public void ExportToExcel(DataTable tab, string filename)
{
System.Web .UI.WebControls.DataGrid source = new System.Web.UI.WebControls.DataGrid();
source.DataSource = tab.DefaultView;
source.AllowPaging = false;
source.HeaderStyle.BackColor = System.Drawing.Color.LightGray;
source.HeaderStyle.HorizontalAlign = HorizontalAlign.Center;
source.HeaderStyle .Font.Bold = true;
source.DataBind();
//防止出現亂碼,加上這行可以防止在只有一行資料時出現亂碼
HttpContext.Current.Response.Write("<meta http-equiv=Content-Type content=text/html;charset=UTF-8>");
HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode (filename + ".xls", System.Text.Encoding.UTF8));
HttpContext.Current.Response.ContentType = "application/ms-excel";
HttpContext.Current.Response.Charset = "UTF-8";
HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.UTF8;
//關閉控制元件的檢視狀態
//source.Page.EnableViewState = false;
//初始化HtmlWriter
System.IO.StringWriter writer = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter htmlWriter = new System.Web.UI.HtmlTextWriter(writer);
source.RenderControl(htmlWriter);
//輸出
HttpContext.Current.Response.Write(writer.ToString());
HttpContext.Current.Response.End();
}