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Silverlight / WPF

 
QuestionHow to get a value from treeview. Pinmemberboryborawski26-Jan-13 12:06 
QuestionConstant header and footer Pinmembercolumbos1492725-Jan-13 23:11 
AnswerRe: Constant header and footer PinmvpRichard MacCutchan26-Jan-13 0:05 
QuestionWPF.MDI Pinmembercolumbos1492725-Jan-13 8:37 
Hello,
I'm using WPF.MDI.dll assembly in my project.
 
This is my Main window XAML file:
<Window x:Class="PL.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:mdi="clr-namespace:WPF.MDI;assembly=WPF.MDI"
        Title="MainWindow" Height="400" Width="800">
    <DockPanel>
        <mdi:MdiContainer>
        </mdi:MdiContainer>
    </DockPanel>
</Window>
 
As soon as i added the lines:
<mdi:MdiContainer>
</mdi:MdiContainer>
 
I got the next message at the designer:
System.NullReferenceException
Object reference not set to an instance of an object.
at WPF.MDI.MdiContainer.MdiContainer_Loaded(Object sender, RoutedEventArgs e)
at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
at System.Windows.UIElement.RaiseEvent(RoutedEventArgs e)
at System.Windows.BroadcastEventHelper.BroadcastEvent(DependencyObject root, RoutedEvent routedEvent)
at System.Windows.BroadcastEventHelper.BroadcastLoadedEvent(Object root)
at MS.Internal.LoadedOrUnloadedOperation.DoWork()
at System.Windows.Media.MediaContext.FireLoadedPendingCallbacks()
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)

 
Any body can help me solve the problem?
 
Thanks!!!
AnswerRe: WPF.MDI PinmemberAbhishek Pant25-Jan-13 9:29 
GeneralRe: WPF.MDI Pinmembercolumbos1492725-Jan-13 22:11 
GeneralRe: WPF.MDI PinmemberAbhishek Pant25-Jan-13 22:33 
AnswerRe: WPF.MDI Pinmembertram730-Nov-13 5:54 
QuestionSilverlight Dispatcher.BeginInvoke not allow thread to run more then one time [modified] PinmemberSteve Holdorf24-Jan-13 12:13 
AnswerRe: Silverlight Dispatcher.BeginInvoke not allow thread to run more then one time Pinmemberdb7uk26-Jan-13 13:11 

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