We Update Wpf Rad Controls Trail version to Licensed version Application was closing automatically when xaml code opens......
please send solution for it

Thanking You

How to add a floating panel from code behind.
Also how to add other controls to this panel like image?

Hello!

Our new issue is based on  previous one. This problem is  also observed on Windowx XP only. The idea is to create floating toolwindow at the center of the screen dynamically. At the moment of toolwindow is created and its position is changed so we can see two "borders" of the toolwindow as it shown at the 1st attached screen shot. We've found partial workaround that hides the second "border" (by decreasing to zero size of the window after creating and increasing it back after changing position), but the 1st border still remains.

I've created sample project, that demonstrates this issue. 

Please, help us to solve this visual issue.

Since updating to version 2011.3.1205.40 the RadPanelBar control generates an exception when you click on one of the headers.
Even using the simple code below (C# Net 4.0 WPF), or more fully padded out (right through to a complex piece of production code).

When you run the code below and click on "Item 2" header an exception is generated "Value cannot be null. Parameter name: element"

The stack trace is:
   at Telerik.Windows.Controls.ChildrenOfTypeExtensions.<GetChildrenRecursive>d__3.MoveNext() in c:\TB\117\WPF_Scrum\Current_HotFix\Sources\Development\Core\Controls\Extensions\ChildrenOfTypeExtensions.cs:line 67
   at System.Linq.Enumerable.<OfTypeIterator>d__aa`1.MoveNext()
   at System.Linq.Enumerable.Any[TSource](IEnumerable`1 source)
   at Telerik.Windows.Controls.RadTreeViewItem.GetFirstFocusableElement() in c:\TB\117\WPF_Scrum\Current_HotFix\Sources\Development\Controls\Navigation\TreeView\RadTreeViewItem.cs:line 1907
   at Telerik.Windows.Controls.RadTreeViewItem.OnGotFocus(RoutedEventArgs e) in c:\TB\117\WPF_Scrum\Current_HotFix\Sources\Development\Controls\Navigation\TreeView\RadTreeViewItem.Events.cs:line 757
   at System.Windows.UIElement.IsFocused_Changed(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
   at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
   at System.Windows.DependencyObject.SetValue(DependencyPropertyKey key, Object value)
   at System.Windows.Input.FocusManager.OnFocusedElementChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
   at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
   at System.Windows.Input.FocusManager.SetFocusedElement(DependencyObject element, IInputElement value)
   at System.Windows.Input.KeyboardNavigation.UpdateFocusedElement(DependencyObject focusTarget)
   at System.Windows.FrameworkElement.OnGotKeyboardFocus(Object sender, KeyboardFocusChangedEventArgs e)
   at System.Windows.Input.KeyboardFocusChangedEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
   at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   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.RaiseTrustedEvent(RoutedEventArgs args)
   at System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)
   at System.Windows.Input.InputManager.ProcessStagingArea()
   at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   at System.Windows.Input.KeyboardDevice.ChangeFocus(DependencyObject focus, Int32 timestamp)
   at System.Windows.Input.KeyboardDevice.TryChangeFocus(DependencyObject newFocus, IKeyboardInputProvider keyboardInputProvider, Boolean askOld, Boolean askNew, Boolean forceToNullIfFailed)
   at System.Windows.Input.KeyboardDevice.Focus(DependencyObject focus, Boolean askOld, Boolean askNew, Boolean forceToNullIfFailed)
   at System.Windows.Input.KeyboardDevice.Focus(IInputElement element)
   at System.Windows.UIElement.Focus()
   at Telerik.Windows.Controls.RadTreeViewItem.OnHeaderMouseLeftButtonDown(Object sender, MouseButtonEventArgs e) in c:\TB\117\WPF_Scrum\Current_HotFix\Sources\Development\Controls\Navigation\TreeView\RadTreeViewItem.Events.cs:line 401
   at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
   at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
   at System.Windows.UIElement.OnMouseDownThunk(Object sender, MouseButtonEventArgs e)
   at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
   at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   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.RaiseTrustedEvent(RoutedEventArgs args)
   at System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)
   at System.Windows.Input.InputManager.ProcessStagingArea()
   at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
   at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
   at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at System.Windows.Interop.HwndSource.InputFilterMessage(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.Application.RunDispatcher(Object ignore)
   at System.Windows.Application.RunInternal(Window window)
   at System.Windows.Application.Run(Window window)
   at System.Windows.Application.Run()
   at RadControlsWpfApp1.App.Main() in Z:\temp\bb\RadControlsWpfApp1\obj\x86\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.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()

Hi,
I would like to know how can I add programmatically (in WPF)  a marked zone with a transparent infill and colored borders?
Whenever I set the Telerik.Windows.Controls.Charting.MarkedZone Background property to transparent and the BorderBush to blue (or any other colour) nothing is displayed.  I would like the chart to look like the one in the attachment.

Cheers

Hello, 
 As source, I set to "Item" property some object. All object's properties will be displayed as Field's Name and all corresponding values in the second column. But i need to set few object here, and add source as List<object> or ObservableCollection<object> for displayed few columns. Could anybody share is it possible?

Getting the error below when i try to install the WPF controls. I get it after putting in my email and password and press "install". What should i do?

Telerik.CommonInstaller.Application.Exceptions.WebSiteDataInconsistentException: Website inconsistent with ProductsInstallersInfo.xml
   at Telerik.CommonInstaller.UI.Navigation.NavigationController.<GetViewModelAndNavigateToPageAsync>b__1[TPage,TViewModel](Object sender, RunWorkerCompletedEventArgs args)
   at System.ComponentModel.BackgroundWorker.OnRunWorkerCompleted(RunWorkerCompletedEventArgs e)
   at System.ComponentModel.BackgroundWorker.AsyncOperationCompleted(Object arg)
   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)

Hi,

I'm having an issue binding with the RadDatePicker.  I'm using WPF, .NET 4.0 and RadControls for WPF Q3 2010 SP1.  I'm trying to bind to a property on a view model that implements INotifyPropertyChanged, but it never seems to update the source.

On the xaml:

On the view model:

Thanks in advance,
Wyatt

After applying one filter, clearing it, then applying a second filter, The results for the first filter show again.

Steps to recreate Using your demo app and the column filters:
1. Did a contains search for "get_" (See attached image getsearch.png)
2. Cleared the search.
3. Did a contains search for "set_"
4. Results that displayed were the intial "get_" results (notice results for setsearch.png are the same as getsearch.png)

I am having the same issue when adding and clearing FilterDescriptors programmatically on the TreeListView.FilterDescriptors collection.

Hi -
We're upgrading our WPF application from Telerik control version 2010.2.0924 (WPF 3.5) to 2011.3.1116 (WPF 4.0).

The issue we're having is that the column filters now behave differently when there are cells that are empty. In the old version, the grid filter would display a checkbox with nothing next to it. In the new version, the checkbox has [null] or [empty] next to it ([null] for number columns, [empty] for string columns).

Please see the attached files that illustrate the behavior. We need the UI behavior to look as it did before, displaying nothing next to the checkbox.

Can this be fixed with the next service pack?

Thanks,
Sandy