Microsoft WPF Map Control - InvalidOperationException - "Cannot perform this operation while dispatcher processing is suspended."

Question

I have a WPF application built on .NET 4.5. The latest version of the map control (version 1.0.1.0) is causing an issue if it is used within a datatemplate. This does not happen with the previous version I was using from NuGet (version 1.0.0.0). It is easy to reproduce the issue:

MainWindow.xaml:

<Window x:Class="MicrosoftMapError.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow"
        Content="{Binding ViewModel,
                          RelativeSource={RelativeSource Self}}">
   <Window.Resources>
      <ResourceDictionary>
         <ResourceDictionary.MergedDictionaries>
            <ResourceDictionary Source="Views/MapView.xaml" />
         </ResourceDictionary.MergedDictionaries>
      </ResourceDictionary>
   </Window.Resources>
</Window>

MainWindow.cs:

using MicrosoftMapError.ViewModels;
using System.Windows;

namespace MicrosoftMapError
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            this.ViewModel = new MapViewModel();
        }

        public object ViewModel
        {
            get { return (object)GetValue(ViewModelProperty); }
            set { SetValue(ViewModelProperty, value); }
        }
        public static readonly DependencyProperty ViewModelProperty = DependencyProperty.Register(
            "ViewModel",
            typeof(object),
            typeof(MainWindow));
    }
}

MapView.xaml:

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                    xmlns:wpf="clr-namespace:Microsoft.Maps.MapControl.WPF;assembly=Microsoft.Maps.MapControl.WPF"
                    xmlns:viewModels="clr-namespace:MicrosoftMapError.ViewModels">
   <DataTemplate DataType="{x:Type viewModels:MapViewModel}">
      <Grid>
         <wpf:Map />
      </Grid>
   </DataTemplate>
</ResourceDictionary>

The MapViewModel class is just an empty class; there is nothing interesting to see there.

And this is the stack trace for the exceptions.

Outer exception:

XamlParseException - The invocation of the constructor on type 'Microsoft.Maps.MapControl.WPF.Map' that matches the specified binding constraints threw an exception.
   at System.Windows.FrameworkTemplate.LoadTemplateXaml(XamlReader templateReader, XamlObjectWriter currentWriter)
   at System.Windows.FrameworkTemplate.LoadTemplateXaml(XamlObjectWriter objectWriter)
   at System.Windows.FrameworkTemplate.LoadOptimizedTemplateContent(DependencyObject container, IComponentConnector componentConnector, IStyleConnector styleConnector, List`1 affectedChildren, UncommonField`1 templatedNonFeChildrenField)
   at System.Windows.FrameworkTemplate.LoadContent(DependencyObject container, List`1 affectedChildren)
   at System.Windows.StyleHelper.ApplyTemplateContent(UncommonField`1 dataField, DependencyObject container, FrameworkElementFactory templateRoot, Int32 lastChildIndex, HybridDictionary childIndexFromChildID, FrameworkTemplate frameworkTemplate)
   at System.Windows.FrameworkTemplate.ApplyTemplateContent(UncommonField`1 templateDataField, FrameworkElement container)
   at System.Windows.FrameworkElement.ApplyTemplate()
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Documents.AdornerDecorator.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Border.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Window.MeasureOverrideHelper(Size constraint)
   at System.Windows.Window.MeasureOverride(Size availableSize)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Interop.HwndSource.SetLayoutSize()
   at System.Windows.Interop.HwndSource.set_RootVisualInternal(Visual value)
   at System.Windows.Interop.HwndSource.set_RootVisual(Visual value)
   at System.Windows.Window.SetRootVisual()
   at System.Windows.Window.SetRootVisualAndUpdateSTC()
   at System.Windows.Window.SetupInitialState(Double requestedTop, Double requestedLeft, Double requestedWidth, Double requestedHeight)
   at System.Windows.Window.CreateSourceWindow(Boolean duringShow)
   at System.Windows.Window.CreateSourceWindowDuringShow()
   at System.Windows.Window.SafeCreateWindowDuringShow()
   at System.Windows.Window.ShowHelper(Object booleanBox)
   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.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   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.LegacyInvokeImpl(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 MicrosoftMapError.App.Main() in d:\SoftwareDevelopment\Working\MicrosoftMapError\MicrosoftMapError\obj\Debug\App.g.cs: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.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ThreadHelper.ThreadStart()

Inner exception:

InvalidOperationException - Cannot perform this operation while dispatcher processing is suspended.
   at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
   at System.Windows.Threading.DispatcherOperation.Wait(TimeSpan timeout)
   at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherOperation operation, CancellationToken cancellationToken, TimeSpan timeout)
   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
   at System.Windows.Threading.Dispatcher.Invoke(Delegate method, Object[] args)
   at Microsoft.Maps.MapControl.WPF.Core.MapConfigurationFromWeb.ConfigLoaded(String requestKey, Dictionary`2 sections)
   at Microsoft.Maps.MapControl.WPF.Core.MapConfigurationFromWeb.GetConfigurationSection(String version, String sectionName, String culture, MapConfigurationCallback callback, Boolean reExecuteCallback, Object userState)
   at Microsoft.Maps.MapControl.WPF.Core.MapConfiguration.GetSection(String version, String sectionName, String culture, String key, MapConfigurationCallback callback, Boolean reExecuteCallback, Object userState)
   at Microsoft.Maps.MapControl.WPF.Core.MapConfiguration.GetSection(String version, String sectionName, String culture, String key, MapConfigurationCallback callback, Boolean reExecuteCallback)
   at Microsoft.Maps.MapControl.WPF.Map..ctor()

Why, on earth, are you creating a ViewModel property on your window? The VM should be the DataContext of the window. — , Feb 04 '15 at 15:05
Also, you just might not be able to create that control in a resource.... — , Feb 04 '15 at 15:08

score 1 · Accepted Answer · answered Feb 06 '15 at 17:30

1

Are dev team has looked into this and I believe they have found the issue. They are working on putting together a new release. Also, Microsoft never officially released a Nuget package, someone just took some old buggy libraries and posted them on Nuget without asking Microsoft. We are planning to make an official Nuget package.

answered Feb 06 '15 at 17:30

rbrundritt

16,570
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Thanks for the update. Is there somewhere I can follow this issue? A ticketing system or something for Bing WPF Maps? – Jason Boyd Feb 18 '15 at 15:48
If you have an Enterprise Bing Maps license you can contact the Bing Maps Enterprise support team and they will create a ticket for this and be able to provide you with updates. That said, I believe the updated WPF control will be released in the next couple of weeks. – rbrundritt Feb 18 '15 at 17:41
It looks like our team already pushed out the updated WPF control as a Nuget package here: http://www.nuget.org/packages/Microsoft.Maps.MapControl.WPF/ The original download page will likely be updated shortly. – rbrundritt Feb 18 '15 at 18:30

Microsoft WPF Map Control - InvalidOperationException - "Cannot perform this operation while dispatcher processing is suspended."

1 Answers1