Asp.net Gridview 导出到Excel【解决编码乱码问题】

public override void VerifyRenderingInServerForm(Control control)
{ }
protected void LinkButton2_Click(object sender, EventArgs e)
{
Response.Clear();
Response.Buffer = true;
Response.Charset = "gb2312";
Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");
Response.AppendHeader("content-disposition", "attachment;filename=\"" + System.Web.HttpUtility.UrlEncode("数据导出", System.Text.Encoding.UTF8) + ".xls\"");
Response.ContentType = "Application/ms-excel";
System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
this.Label1.RenderControl(oHtmlTextWriter);
this.GridView1.RenderControl(oHtmlTextWriter);
Response.Output.Write(oStringWriter.ToString());
Response.Flush();
Response.End();
}