JavaScript Error after close RadWindow and Postback

[Fernando]

I have a RadWindow to show comments when I click button of GridButtonColumn of a RadGrid. When I click, in the ItemCommand event of the RadGrid I have the following code:

protected void rgQualityReport_OnItemCommand(object sender, GridCommandEventArgs e)
{
    if (e.CommandName == "ShowComment")
    {
        GridDataItem dataItem = e.Item as GridDataItem;
        comments.Content = dataItem["ColumnDate"].Text;
        this.modalPopupComments.VisibleOnPageLoad = true;
        RadWindowManager1.DestroyOnClose = true;
        RadWindowManager1.Controls.Add(modalPopupComments);
    }
}

The problem is the following:When I click the button, the radwindow is showed correctly. However, after close the radwindow and reload the page, in a postback reload I have the following error:sys.webforms.pagerequestmanagerservererrorexception JSCRIPT error.

Can you help me, please?Thanks!

[Maria Ilieva]

Hi Fernando,

Could you please share the entire error stuck trace so that we could further investigate the error you are facing? Also in case Ajax is enabled on your page, try to disable it and verify what the result in this case is.

Regards,
Maria Ilieva
Telerik