Hi,
I am trying WPF to develop a very simple window. Following is my xaml.
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:syncfusion="http://schemas.syncfusion.com/wpf"
x:Class="winMain"
WindowStartupLocation="CenterScreen"
syncfusion:SkinStorage.VisualStyle="Office2007Blue"
Title="winMain" Height="768" Width="1024">
FocusManager.IsFocusScope="True"
DockPanel.Dock="Top" Height="103" Background="Transparent">
syncfusion:DockingManager.SideInDockedMode="Left"
syncfusion:DockingManager.DesiredWidthInDockedMode="300" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" VisualMode="MultipleExpansion" >
syncfusion:DockingManager.CanFloat="False">
The following is the error in the designer.
Object reference not set to an instance of an object.
at Syncfusion.Windows.Tools.Controls.DockingManager.SetControlCenter()
at Syncfusion.Windows.Tools.Controls.DockingManager.OnUseDocumentContainerChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
at Syncfusion.Windows.Tools.Controls.DockingManager.UpdateControlCenter()
at Syncfusion.Windows.Tools.Controls.DockingManager.OnDockingManagerLoaded(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.Media.MediaContext.Resize(ICompositionTarget resizedCompositionTarget)
at System.Windows.Interop.HwndTarget.OnResize()
at System.Windows.Interop.HwndTarget.HandleMessage(Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Interop.HwndSource.HwndTargetFilterMessage(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, Boolean isSingleParameter)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
HOWEVER, there is no error in the runtime.