本文實例講述了ASP.NET使用GridView導出Excel實現(xiàn)方法。。具體實現(xiàn)方法如下：

代碼如下:/// <summary> 
/// 將DataTable數據導出到EXCEL，調用該方法后自動返回可下載的文件流 
/// </summary> 
/// <param name="dtData">要導出的數據源</param> 
public static void DataTable1Excel(System.Data.DataTable dtData) 
{ 
        System.Web.UI.WebControls.GridView gvExport = null; 
        // 當前對話 
        System.Web.HttpContext curContext = System.Web.HttpContext.Current; 
        // IO用于導出并返回excel文件 
        System.IO.StringWriter strWriter = null; 
        System.Web.UI.HtmlTextWriter htmlWriter = null; 
 
        if (dtData != null) 
        { 
            // 設置編碼和附件格式 
            curContext.Response.ContentType = "application/vnd.ms-excel"; 
            curContext.Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312"); 
            curContext.Response.Charset = "utf-8"; 
 
            // 導出excel文件 
            strWriter = new System.IO.StringWriter(); 
            htmlWriter = new System.Web.UI.HtmlTextWriter(strWriter); 
            // 為了解決gvData中可能進行了分頁的情況，需要重新定義一個無分頁的GridView 
            gvExport = new System.Web.UI.WebControls.GridView(); 
            gvExport.DataSource = dtData.DefaultView; 
            gvExport.AllowPaging = false; 
            gvExport.DataBind(); 
 
            // 返回客戶端 
            gvExport.RenderControl(htmlWriter); 
            curContext.Response.Write("<meta http-equiv=/"Content-Type/" content=/"text/html; charset=gb2312/" />" + strWriter.ToString());