Hi!
I have a RadTreeListView with four columns. For two of them I specified a value for their Background property. The result is what you see in the attachment. The selection highlighting is hidden behind the background of the columns! How can I fix this?
(data has been blurred in the picture on purpose)

I am trying to add a tooltip to the timeline period (area showing dates above the intervals).  I have tried setting the HeaderStyle for the TimelinePeriodControl, but haven't had any luck seeing results from that.  As far as I can tell, the TimelinePeriodControl doesn't support tooltips.  Any suggestions?

Hi,

I have an application with some Telerik V2012.2.912.35 controls and one of them, the RadDocking cause me a lot of headaches :)
In a Windows 7 environment, When I drag a control over my form, everything going as expected!!! When I run the same application on a Windows XP environment, when I drag a control over my form, my application crash with the following exception message:

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullReferenceException: Object reference not set to an instance of an object.
   at ChristianMoser.WpfInspector.Services.StyleExplorer.StyleHelper.TryGetStyleItem(FrameworkElement owner, Style style, StyleItem& styleItem)
   at ChristianMoser.WpfInspector.UserInterface.Controls.PropertyItems.StylePropertyItem.LoadStyles()
   --- End of inner exception stack trace ---
   at System.RuntimeMethodHandle._InvokeMethodFast(Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner)
   at System.RuntimeMethodHandle.InvokeMethodFast(Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
   at System.Delegate.DynamicInvokeImpl(Object[] args)
   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)
   at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
   at System.Windows.Threading.DispatcherOperation.InvokeImpl()
   at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
   at System.Threading.ExecutionContext.runTryCode(Object userData)
   at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
   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, Boolean isSingleParameter)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
   at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
   at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter)
   at System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg)
   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.Window.ShowHelper(Object booleanBox)
   at System.Windows.Window.Show()
   at System.Windows.Window.ShowDialog()
   at Telerik.Windows.Controls.InternalWindow.WindowWithNoChromeWindowHost.Open(Boolean isModal) in c:\TB\135\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\Window\InternalWindow\WindowWithNoChromeWindowHost.cs:line 34
   at Telerik.Windows.Controls.WindowBase.ShowWindow(Boolean isModal) in c:\TB\135\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\Window\WindowBase.cs:line 719
   at Telerik.Windows.Controls.RadWindow.ShowDialog() in c:\TB\135\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\Window\RadWindow.cs:line 453
   at com.christiegrp.Neuron.ClientApplication.DictationModuleWPF.DisplayDictationForm(NeuronDataSource pDataSource) in D:\Working\RIS_Current\Customers\Client\Modules\DictationModuleWPF\DictationModuleWPF.cs:line 776
   at com.christiegrp.Neuron.ClientApplication.DictationList.btnDictate_Click(Object sender, RoutedEventArgs e) in D:\Working\RIS_Current\Customers\Client\Modules\DictationModuleWPF\DictationList.xaml.cs:line 340
   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.Controls.Primitives.ButtonBase.OnClick()
   at System.Windows.Controls.Button.OnClick()
   at Telerik.Windows.Controls.RadButton.OnClick() in c:\TB\135\WPF_Scrum\Release_WPF\Sources\Development\Core\Controls\Buttons\RadButton.cs:line 389
   at System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp(MouseButtonEventArgs e)
   at System.Windows.UIElement.OnMouseLeftButtonUpThunk(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.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
   at System.Windows.UIElement.CrackMouseButtonEventAndReRaiseEvent(DependencyObject sender, MouseButtonEventArgs e)
   at System.Windows.UIElement.OnMouseUpThunk(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.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, Int32 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, Boolean isSingleParameter)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
   at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
   at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter)
   at System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg)
   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.Window.ShowHelper(Object booleanBox)
   at System.Windows.Window.Show()
   at System.Windows.Window.ShowDialog()
   at Telerik.Windows.Controls.InternalWindow.WindowWithNoChromeWindowHost.Open(Boolean isModal) in c:\TB\135\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\Window\InternalWindow\WindowWithNoChromeWindowHost.cs:line 34
   at Telerik.Windows.Controls.WindowBase.ShowWindow(Boolean isModal) in c:\TB\135\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\Window\WindowBase.cs:line 719
   at Telerik.Windows.Controls.RadWindow.ShowDialog() in c:\TB\135\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\Window\RadWindow.cs:line 453
   at com.christiegrp.Neuron.ClientApplication.DictationModuleWPF.StartFunction() in D:\Working\RIS_Current\Customers\Client\Modules\DictationModuleWPF\DictationModuleWPF.cs:line 251
   at com.christiegrp.Neuron.ClientApplication.MainGui.listView_ItemActivate(Object pSender, EventArgs pArgs) in D:\Working\RIS_Current\Customers\Client\Neuron30\WinForm\Neuron\MainGui.cs:line 1052

I have a ScheduleView with a custom EditAppointmentDialogStyle. When I doubleclick on an appointment, the correct custom dialog opens. When I do this programmatically using RadScheduleViewCommands.EditAppointment.Execute in the AppointmentEdited event, then the native dialog opens. Is there a way to open the custom dialog programmatically?

Good night, please excuse my bad english.

How do I get my buttons to decrease and increase stay with the same style gives the image? - and +.

Thank you!

Hi,
I wanted to display a custom template in a custom aggregated grid format for tracker information for entire series. Currently we have two templates - trackerballControl which is panel template and when the update happens in TrackBallInfoControl, it picks up the tracker information template and adds it into template as seperate controls. How can i control this?
I even tried entrying dummy datapointinfo in the context so that it can display empty row but DatapointInfo and all the classes it uses are internal and very hard to do that.
Can anyone help please?


Thanks
Avneesh

I have spent a good amount of time looking for a way to do this but I finally had to contact support y'day.  I did not find any hits in the forum archive as well so, cross-posting this solution here for any mortals like me could find it in future.  To their credit, support team was swift in getting the answer!

If you need a way to set RadPane's background differently based on whether it is docked or floating, you will have to do this from the RadPaneGroup that the pane belongs to.  Although, the group can be styled in XAML, I prefer the following because I needed this be done only for the panes that go floating in runtime while all docked panes remain transparent.

XAML:

CodeBehind:

I am attempting to customize the column headers for RadGridView, but am running into a problem where the template generated in Blend is not based on my selected theme. I have assigned the Windows7Theme to the GridViewHeaderCell before editing the template and have also assigned the theme to the RadGridView itself, but the header cells use the office black theme instead. I am following the instructions found here: http://www.telerik.com/help/wpf/gridview-styling-column-headers.html

My goal is to add a button to the header. I do not wish to alter the style/theme other than that. If there is another way to accomplish this, or a way to edit the header cell template that will respect the theme, I would be interested to know how. Thank you!

I am using Visual Studio 2012 and Expression Blend 4.

I have attached a screenshot of the resulting gridview. Here is the XAML:

Hi,

I wants to assign tooltip to the RadRichTextBox Text, is there any way to do this.

Please help.  & thanks

Regards
Ajita

Get the following when open the File tab