• CommentAuthorD. Saylor
    • CommentTimeDec 4th 2014
     
    We have a map page in our application. It loads fine when we go to the page, but when we go to any other page we get the below error. This is with SDK version 4.2 (latest).

    Application: MyApp.exe

    Framework Version: v4.0.30319

    Description: The process was terminated due to an unhandled exception.

    Exception Info: System.ArgumentNullException

    Stack:

    at System.Drawing.Graphics.FromImage(System.Drawing.Image)
    at Telogis.GeoBase.WPF.MapControl.<UpdateMapImage>b__6()
    at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
    at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
    at System.Windows.Threading.DispatcherOperation.InvokeImpl()
    at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(System.Object)
    at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
    at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
    at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
    at System.Windows.Threading.DispatcherOperation.Invoke()
    at System.Windows.Threading.Dispatcher.ProcessQueue()
    at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
    at MS.Win32.HwndWrapper.WndProc(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
    at MS.Win32.HwndSubclass.DispatcherCallbackOperation(System.Object)
    at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
    at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
    at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(System.Windows.Threading.DispatcherPriority, System.TimeSpan, System.Delegate, System.Object, Int32)
    at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr, Int32, IntPtr, IntPtr)
    at MS.Win32.UnsafeNativeMethods.DispatchMessage(System.Windows.Interop.MSG ByRef)
    at System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame)
    at System.Windows.Threading.Dispatcher.PushFrame(System.Windows.Threading.DispatcherFrame)
    at System.Windows.Threading.Dispatcher.Run()
    at System.Windows.Application.RunDispatcher(System.Object)
    at System.Windows.Application.RunInternal(System.Windows.Window)
    at System.Windows.Application.Run(System.Windows.Window)
    at My.App.Main()