ReportViewer showing blank report

[Mercede]

I have a report Viewer in a web user control. The control displays Ext.NET window which has Report viewer control. Following is the declaration of Report Viewer:

   <telerik:ReportViewer ID="Viewer" runat="server"
        ViewMode="PrintPreview" Width="100%" Height="500"
ZoomMode="PageWidth" >
<Resources ProcessingReportMessage="Please wait" />
    </telerik:ReportViewer>

 the code behind has the following: 

   public partial class ucReport : Finance.Controls.BaseUserControl
    {
        public void Print(int id)
        {
            try
            {
                Reports.VoucherReport report = new Finance.Reports.VoucherReport();
                report.ReportParameters["voucherid"].Value = id;
                Viewer.Report = report;
                Viewer.RefreshReport();
                winPrint.Show();
            }
            catch (Exception ex)
            {
                Boxes.Error(ex);
            }
        }
}

 During the execution the report viewer appears blank. no exceptions are raised nothing. I dont know if I'm doing anything incorrect. please help me

[Steve]

Hi Mercede,

The provided information is insufficient for us to determine what might be wrong. We have the following questions/suggestions:

• When is the Print method invoked?
• Is the voucherid report parameter used for filtering the report datasource, have you verified that it returns data in preview if the same value for the parameter is used?
• Set a border for the report viewer to verify it has rendered in its entity (some DOCTYPEs can cause problems especially when using percent for width/height without applying width/height to the whole DOM tree)
• Does the report viewer show pages e.g. 1 of 1? Use Firebug or IE developer tools to see whether the report is loaded in the viewer.

Kind regards,
Steve
the Telerik team