ASP.NET使用GridView导出Excel实现方法

本文实例讲述了ASP.NET使用GridView导出Excel实现方法。。具体实现方法如下：

代码如下:/// <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());