Sys.WebForms.PageRequestManagerParserErrorException：从服务器收到的消息无法解析 [英] Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed

问题描述

我有我的页面上的网格视图，我想将其导出到Excel工作表，
下面是code我写做这个任务，我在这里已经传递数据的方法，以网格结合和btnExcelExport是将导出网格内容到Excel工作表的按钮： -

 私人无效BindGridView（DataSet的DS）
{
    如果（ds.Tables.Count大于0）
    {
        如果（ds.Tables [0] .Rows.Count大于0）
        {
            GVUserReport.DataSource = DS;
            GVUserReport.DataBind（）;
            btnExcelExport.Visible =真;
        }
    }
}保护无效btnExcelExport_Click（对象发件人，EventArgs的发送）
{
    Response.Clear（）;
    Response.AddHeader（内容处置，附件;文件名= FileName.xls）;
    Response.Charset的=;
    Response.Cache.SetCacheability（HttpCacheability.NoCache）;
    Response.ContentType =应用程序/ vnd.xls
    System.IO.StringWriter stringWrite =新System.IO.StringWriter（）;
    System.Web.UI.HtmlTextWriter htmlWrite =新的HtmlTextWriter（stringWrite）;
    GVUserReport.RenderControl（htmlWrite）;
    的Response.Write（stringWrite.ToString（））;
    到Response.End（）;
}公共覆盖无效VerifyRenderingInServerForm（控制控制）
{
    返回;
}
 

现在，当我为我调试发现，网格成功地绑定，但试图将其导出到Excel的时候，我得到这个错误：

  

Microsoft JScript运行错误：
  Sys.WebForms.PageRequestManagerParserErrorException：消息
  从无法解析服务器收到。

解决方案

我解决了这个问题。当我使用的UpdatePanel ，我在下面的页面的Page_Load 事件code和它的工作对我来说：

 保护无效的Page_Load（对象发件人，EventArgs的发送）{
  的ScriptManager的ScriptManager = ScriptManager.GetCurrent（this.Page）;
  scriptManager.RegisterPostBackControl（this.btnExcelExport）;
  //进一步code到这里....
}
 

I have a grid view on my page and i want to export it to the Excel Sheet, Below is the code i had written to do this task, here i am already passing the dataset to the method to bind the grid and btnExcelExport is the button which will export the Grid Content in to Excel Sheet :-

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;
}

Now when i m debugging i found that the grid is binded sucessfully but when trying to export it to Excel , I'm getting this error:

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

解决方案

I fixed this issue. As I'm using UpdatePanel, I added below code in the Page_Load event of the page and it worked for me:

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

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