1626917 - Error when initiating a WPF Application using Crystal Report WPF viewer

• A Shell Start-up project shows loading screen
• Main window containing the CR WPF viewer is loaded on completion of load of the Start-up project
• This results in the error:

Object reference not set to an instance of an object

• Or:

NullRefrenceException … at SAPBusinessObjects.WPF.Viewer.ViewerCore.c__DisplayClass1.<set_ReportSource>b__0()

• VS2010
• Crystal Reports for Visual Studio 2010

• Use the following approach
• Shell Start-up application code:

Application app = new Application();

//Application main window 
// Launch host from MainWindow
app.Run( new MainWindow()); 

private void button1_Click(object sender, RoutedEventArgs e)
{
System.Windows.Window viewer = new MyWpfViewerHost(); 
viewer.Show();
}

• WPF application code:

public partial class MainWindow : Window {
public MainWindow() {
InitializeComponent();

// crViewer is SAPBusinessObjects.WPF.Viewer.CrystalReportsViewer
// Assign report to viewer
crViewer.ViewerCore.ReportSource = new CrystalReport1(); 
}
}

• 1455291  - How to use CrystalReportViewer Control in a WindowsFormsHost control when using WPF
• 1528504  - Introduction to the new Crystal Reports for Visual Studio 2010 WPF Viewer

CR2010 2010 CR4VS2010 CR4VS VS2010 NET2010 Crystal Reports for .NET Framework 4.0 crforvs 13 Crystal Reports for Visual Studio 2010 , KBA , BI-DEV-NET-SDK , .NET SDK / COM SDK , How To

SAP Crystal Reports, developer version for Microsoft Visual Studio