c# - Sys.WebForms.PageRequestManagerParserErrorException : The message received from the server could not be parsed

Question

我的页面上有一个 GridView ，我想将它导出到 Excel 工作表， 下面是我为完成此任务而编写的代码，这里我已经将数据集传递给绑定(bind)网格的方法，btnExcelExport 是将网格内容导出到 Excel 工作表的按钮:-

private void BindGridView(DataSet ds)
{
    if (ds.Tables.Count > 0)
    {
        if (ds.Tables[0].Rows.Count > 0)
        {
            GVUserReport.DataSource = ds;
            GVUserReport.DataBind();
            btnExcelExport.Visible = true;
        }
    }
}

protected void btnExcelExport_Click(object sender, EventArgs e)
{
    Response.Clear();
    Response.AddHeader("content-disposition","attachment;filename=FileName.xls");
    Response.Charset = "";
    Response.Cache.SetCacheability(HttpCacheability.NoCache);
    Response.ContentType = "application/vnd.xls";
    System.IO.StringWriter stringWrite = new System.IO.StringWriter();
    System.Web.UI.HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);
    GVUserReport.RenderControl(htmlWrite);
    Response.Write(stringWrite.ToString());
    Response.End();
}

public override void VerifyRenderingInServerForm(Control control)
{
    return;
}

现在，当我调试时，我发现网格已成功绑定(bind)，但在尝试将其导出到 Excel 时，出现此错误:

"Microsoft JScript runtime error: Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed."

Answer 1

我解决了这个问题。当我使用 UpdatePanel 时，我在页面的 Page_Load 事件中添加了以下代码，它对我有用:

protected void Page_Load(object sender, EventArgs e) {
  ScriptManager scriptManager = ScriptManager.GetCurrent(this.Page);
  scriptManager.RegisterPostBackControl(this.btnExcelExport);
  //Further code goes here....
}