CrosstabTransform Exception and no data message

[beltrams]

I have a chart with a CrosstabTransform that  raise the followinf exception:

"Object reference not set to an instance of an object."

at ChartFX.WPF.Data.CrosstabTransform.l.a()

at ChartFX.WPF.Data.CrosstabTransform.ChartFX.WPF.Internal.IColumnPropertiesProvider.GetProperties(ColumnGetter& columnGetter)

at ChartFX.WPF.Internal.ColumnGetter.GetListProperties(Object objList, ColumnGetter& columnGetter, Object& objModel)

at ChartFX.WPF.DataValues.a(IList`1 A_0, IEnumerable A_1, Int32 A_2, Boolean A_3)

at ChartFX.WPF.DataValues.a(SeriesAttributesCollection A_0, IEnumerable A_1)

at ChartFX.WPF.DataValues.a(DataBindingHelper A_0, Boolean A_1)

at ChartFX.WPF.Chart.i(Boolean A_0)

at ChartFX.WPF.Chart.e()

at ChartFX.WPF.Chart.a(Object A_0, RoutedEventArgs A_1)

at ChartFX.WPF.Chart.OnRenderSizeChanged(SizeChangedInfo sizeInfo)

at System.Windows.ContextLayoutManager.fireSizeChangedEvents()

at System.Windows.ContextLayoutManager.UpdateLayout()

at System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg)

at System.Windows.Media.MediaContext.InvokeOnRenderCallback.DoWork()

at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()

at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)

at System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)

at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)

at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)

at System.Windows.Threading.DispatcherOperation.InvokeImpl()

at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)

at System.Threading.ExecutionContext.runTryCode(Object userData)

at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)

at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)

at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)

at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

at System.Windows.Threading.DispatcherOperation.Invoke()

at System.Windows.Threading.Dispatcher.ProcessQueue()

at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)

at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)

at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)

at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)

at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)

at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)

at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)

at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)

at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)

at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)

at System.Windows.Threading.Dispatcher.Run()

at System.Windows.Application.RunDispatcher(Object ignore)

at System.Windows.Application.RunInternal(Window window)

at System.Windows.Application.Run(Window window)

at System.Windows.Application.Run()

at Linedata.FM.App.Main() in :line 0

at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)

at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)

at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()

at System.Threading.ThreadHelper.ThreadStart_Context(Object state)

at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)

at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

at System.Threading.ThreadHelper.ThreadStart()

 

This happens when the data I am binding to has no rows.

I can fix this doing the following: if (this.ReportData.Count() == 0) this._reportData = null;

but the graph will show a fummy graph in this case. Is there a to dont show anything or an empty page or a message "do data availble" or something like this?

Thanks.

 

[JuanC]

We have uploaded a new build (3985) that should fix these issues when using crosstab and an empty data source.

JuanC

[beltrams]

Where I can download this build?

At the moment I am on version 8.0.3581.26941.

Thanks

[beltrams]

Found it!

Thanks,

Simone