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Former Member
Apr 16, 2014 at 02:43 PM

Crystal reportsError in output window Visual Studio 2013

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Hi, I am using Crystal Reports in Visual Studio 2013 (WPF MVVM pattern).

In my report viewer, the code that binds to the report viewer is -

<ContentControl Grid.Row ="1" Content="{Binding Path=ReportViewer}" >

In the view model, this is the code that creates the Report Viewer -

public ReportViewerModel(ReportDocument report, string reportName) { ReportViewer = new CrystalReportsViewer(); myReport = report; _reportName = reportName; ReportViewer.ViewerCore.ReportSource = report; }

I get the following errors in my output window every time the report viewer is loaded

System.Windows.Data Error: 5 : Value produced by BindingExpression is not valid for target property.; Value='<null>' BindingExpression:Path=ToolTip; DataItem='Button' (Name='btnOpen'); target element is 'Button' (Name='btnOpen'); target property is 'Name' (type 'String')

System.Windows.Data Error: 5 : Value produced by BindingExpression is not valid for target property.; Value='<null>' BindingExpression:Path=ToolTip; DataItem='Button' (Name='btnPrint'); target element is 'Button' (Name='btnPrint'); target property is 'Name' (type 'String')

System.Windows.Data Error: 5 : Value produced by BindingExpression is not valid for target property.; Value='<null>' BindingExpression:Path=ToolTip; DataItem='Button' (Name='btnRefresh'); target element is 'Button' (Name='btnRefresh'); target property is 'Name' (type 'String')

System.Windows.Data Error: 5 : Value produced by BindingExpression is not valid for target property.; Value='<null>' BindingExpression:Path=ToolTip; DataItem='Button' (Name='btnExport'); target element is 'Button' (Name='btnExport'); target property is 'Name' (type 'String')

System.Windows.Data Error: 5 : Value produced by BindingExpression is not valid for target property.; Value='<null>' BindingExpression:Path=ToolTip; DataItem='Button' (Name='btnCopy'); target element is 'Button' (Name='btnCopy'); target property is 'Name' (type 'String')

System.Windows.Data Error: 5 : Value produced by BindingExpression is not valid for target property.; Value='<null>' BindingExpression:Path=ToolTip; DataItem='ToggleButton' (Name='btnToggleSidePanel'); target element is 'ToggleButton' (Name='btnToggleSidePanel'); target property is 'Name' (type 'String')

System.Windows.Data Error: 5 : Value produced by BindingExpression is not valid for target property.; Value='<null>' BindingExpression:Path=ToolTip; DataItem='Button' (Name='btnPrevPage'); target element is 'Button' (Name='btnPrevPage'); target property is 'Name' (type 'String')

System.Windows.Data Error: 5 : Value produced by BindingExpression is not valid for target property.; Value='<null>' BindingExpression:Path=ToolTip; DataItem='Button' (Name='btnNextPage'); target element is 'Button' (Name='btnNextPage'); target property is 'Name' (type 'String')

System.Windows.Data Error: 5 : Value produced by BindingExpression is not valid for target property.; Value='<null>' BindingExpression:Path=ToolTip; DataItem='Button' (Name=''); target element is 'Button' (Name=''); target property is 'Name' (type 'String')

System.Windows.Data Error: 5 : Value produced by BindingExpression is not valid for target property.; Value='<null>' BindingExpression:Path=ToolTip; DataItem='Button' (Name=''); target element is 'Button' (Name=''); target property is 'Name' (type 'String')

What am I doing wrong? Appreciate any tips!

Thanks,
Sharon