SAP Knowledge Base Article - Public

1836332 - Report not rendering in DHTML viewer after entering parameters

Symptom

  • Report run in a Visual Studio Web application prompts for parameters
  • The report does not render in the viewer, unless the F5 button is pressed

Environment

  • SAP Crystal Reports, developer version for Microsoft Visual Studio
  • Microsoft Visual Studio
  • Telerik RadAjaxPanel

Cause

  • The viewer description is contained within theTelerikRadAjaxPanel 

    <telerik:RadAjaxPanel ID="AjaxPanel1" runat="server" 
    LoadingPanelID="MasterLoadingPanel" ClientEvents-OnRequestStart="centerLoadingPanelWithAjax">
    ...
    <asp:Button ID="GenerateReportButton" Text="Generate Report" runat="server" 
    OnClientClick="SetGenerateButtonClientId(this.id)" 
    OnClick="GenerateReport_Click" />
       <asp:Panel runat="server" ID="ReportPanel" BackColor="White" Visible="true">
            <CR:CrystalReportViewer ID="CrystalReportViewer1" 
    EnableDatabaseLogonPrompt="false" 
    Visible="true" runat="server" 
    AutoDataBind="true" 
    HasCrystalLogo="False"
    HasDrillUpButton="False" 
    HasSearchButton="False" 
    HasToggleGroupTreeButton="False"  
    HasZoomFactorList="False"
    HasExportButton="False" 
    HasPrintButton="False" ShowAllPageIds="True" 
    ToolbarStyle-BackColor="WhiteSmoke" 
    ToolbarStyle-BorderColor="WhiteSmoke"
    ReuseParameterValuesOnRefresh="True" 
    EnableDrillDown="False"  
    BestFitPage="true"  
    ToolPanelView="None" />   
     
    ...
    </telerik:RadAjaxPanel>

 

Resolution

  • Move the report viewer and the associated button that will generate the reports outside theRadAjaxPanel 
    <telerik:RadAjaxPanel ID="AjaxPanel1" 
    runat="server" 
    LoadingPanelID="MasterLoadingPanel" 
    ClientEvents-OnRequestStart="centerLoadingPanelWithAjax">
    ...
    </telerik:RadAjaxPanel>
    <asp:Button ID="GenerateReportButton" 
    Text="Generate Report" runat="server" 
    OnClientClick="SetGenerateButtonClientId(this.id)" 
    OnClick="GenerateReport_Click" />
    <asp:Panel runat="server" ID="ReportPanel" BackColor="White" Visible="true">
         <CR:CrystalReportViewer ID="CrystalReportViewer1" 
    EnableDatabaseLogonPrompt="false" 
    Visible="true" runat="server" 
    AutoDataBind="true" 
    HasCrystalLogo="False"
    HasDrillUpButton="False" 
    HasSearchButton="False" 
    HasToggleGroupTreeButton="False"  
    HasZoomFactorList="False"
    HasExportButton="False" 
    HasPrintButton="False" 
    ShowAllPageIds="True" 
    ToolbarStyle-BackColor="WhiteSmoke" 
    ToolbarStyle-BorderColor="WhiteSmoke" 
    ReuseParameterValuesOnRefresh="True" 
    EnableDrillDown="False"  
    BestFitPage="true"  
    ToolPanelView="None" />  

 

Keywords

CRVS CR 2010 2012 blank empty , KBA , BI-DEV-NET-SDK , .NET SDK / COM SDK , Problem

Product

SAP Crystal Reports, developer version for Microsoft Visual Studio