Version: 2013 Q1 with SP1

In a RadChart with zoom enabled, trying to zoom-in causes automatic removal of the underlying DataSeries object from the ChartArea.DataSeries collection. I have attached some sample code that reproduces the issue. Note that this behavior is reproduced both programatically, and through UI interaction (by resizing the zoom bar).

XAML code:


VB code behind:

I really messed up to populate data in WPF Telerik RadRichtextbox, I'm getting dataset from WCF service named as "LetterServiceClient" and now want to populate data in "Mailing"-->"Insert merge field" dropdown, but failed to do so. For your reference i also attached a screen shot to give you a clear look. 
MainWindow.xaml

<telerik:RadRibbonDropDownButton 
         x:Name="ddinsert" 
         Content="" 
         CollapseToMedium="WhenGroupIsMedium" 
         LargeImage="pack://application:,,,/Telerik.Windows.Controls.RichTextBoxUI;component/Images/MSOffice/32/InsertMergeField.png"            
         telerik:RadRichTextBoxRibbonUI.RichTextCommand="{Binding InsertMergeFieldEmptyCommand}" 
         Size="Large" 
         Text="Insert Merge Field" 
         telerik:ScreenTip.Title="Insert Merge Field" 
         />

MainWindow.cs

 private void bindData()
    {
        ServiceReference1.LetterServiceClient letterservice = new ServiceReference1.LetterServiceClient();
        DataSet ds = letterservice.ExecuteTagSchema("SearchPatient");
        List<string> listTemp = new List<string>();
        int i = 0;
        foreach (DataColumn item in ds.Tables[0].Columns)
        {
            listTemp.Add(item.ColumnName);
        }

        this.ddinsert.DataContext = listTemp.ToArray();

        //this.radRichTextBox.Document.MailMergeDataSource.ItemsSource = listTemp.ToArray();
        //this.radRichTextBox.Document.MailMergeDataSource.ItemsSource= listTemp.ToArray();
    }

My WPF application runs on computers installed in police cars.  As such, it needs to have a "night mode" that has more subdued colors that don't hurt the officer's eyes in the dark.

My application has a search screen which contains a couple of RadDateTimePicker controls.  I've made a copy of the default template for the RadCalendar control that is contained in the RadDateTimePicker control's drop down area and I've been changing the XAML so it uses dynamic resource brushes defined in merged dictionaries.  The switch to night mode and back to day mode is used by changing the merged dictionary to one that has other brushes with the same names but different colors.

My problem is in the CalendarButton controls that make up the calendar.  They contain a Telerik ButtonChrome control which does not have any color properties.  When I open my application and use Snoop to look at the drop down after opening it, I can see that the ButtonChrome control contains a grid that contains a number of Border controls in it.  Those Border controls are not in the XAML; they must be created by the ButtonChrome.

The problem is that the colors used by the ButtonChrome don't work with my color scheme.  I have to use a dark background with lighter colors in the foreground for night mode.  The colors in that ButtonChrome are just the opposite.  There's no obvious way using XAML that I can change the colors used by the ButtonChrome.

Is there any way I can change the colors used without having to write my own ButtonChrome class?

I am using RadControls for WPF version 2013.1.220.45.

Hello Telerik Team,
I have the following code:



When I run and maximize the window, the RadMenu gets proportionaly bigger (naturally, as a star notation is used).
Now I could use a fixed height for the first grid row - but I am not sure that it is a good practice - I am just learning wpf and most of the starting materials discourage from using fixed sizes in wpf.

Could you please tell me what would be a good/standard way of making the RadMenu occupy just enough space to draw its contents and keep same height even when resizing? In other words, I am trying to add a menu just like in other standard windows desktop applications.

However, if a fixed size must be used, what would be the minimum height for the RadMenu?

Thank you in advance for you reply.

Best Regards,
Karol

Hi!

What would be best way to allow only one TreeViewItem to be checked at a time per Node? Or even better only one item checked in whole TreeView at a time. When new item is checked the previous would be unchecked first. I know it's possible to make it in code-behind but I'm trying to find the best solution for implementing it.

Something like first unchecking whole treeview in PreviewChecked event and then checking the new item (or would it be enough to just uncheck everything)? 

Thanks!

Br,

Kalle

Hello!

After SP1 I see a strange bug: the construction "new PdfFormatProvider(...).Import()" throws null reference exception when it used separately from the pdf viewer( inside console app, for example). But when I create a instance of RadPdfViewer class before this, the import completes successfully. I think there is some initialization inside RadPdfViewer that is required for PdfFormatProvider.

Hello.
Im developing application using .net 4, telerik (2012.3.1129.40) and mvvm light, nhibernate in WPF using visual studio 2012.

This application is running fine on all computers (about 5-6) except one. Its small laptop with touch screen.
What I'm facing is during load of some forms application crushes. Its mostly when i move mouse into DataFormComboBoxField
which is binded to collection.

Example:
     <telerik:DataFormComboBoxField ItemsSource="{Binding ErrandDocTemplates}" DisplayMemberPath="Name"
             DataMemberBinding="{Binding SelectedErrandDocTemplate, Mode=TwoWay}" Label="Szablon" Width="430" HorizontalAlignment="Left"/>

This project is wpf controls library hosted in WinForms application.

Ive read couple of articles about similiar issue but i couldnt find any solution to this. I tried even cleaning font cashes and update graphic drivers as its said in KB937135 but still with no success.

Here is the stuck trace of firtst exception im getting (there is no inner exception)

mscorlib
   at System.RuntimeMethodHandle._InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeType typeOwner)
   at System.RuntimeMethodHandle.InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeType typeOwner)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at GalaSoft.MvvmLight.Helpers.WeakAction.Execute()
   at GalaSoft.MvvmLight.Command.RelayCommand.Execute(Object parameter)
   at MS.Internal.Commands.CommandHelpers.CriticalExecuteCommandSource(ICommandSource commandSource, Boolean userInitiated)
   at System.Windows.Controls.Primitives.ButtonBase.OnClick()
   at System.Windows.Controls.Button.OnClick()
   at Telerik.Windows.Controls.RadButton.OnClick()
   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.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.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 System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
   at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
   at System.Windows.Forms.Application.Run(Form mainForm)
   at SDEWinForm.Program.Main() in d:\SDEControlsLibrary\SDEControlsLibrary\SDEWinForm\Program.cs:line 20
System.Object _InvokeMethodFast(System.IRuntimeMethodInfo, System.Object, System.Object[], System.SignatureStruct ByRef, System.Reflection.MethodAttributes, System.RuntimeType)
Exception has been thrown by the target of an invocation.

Value cannot be null.
Parameter name: source

If i handle this im getting next one:  

System.Core
   w System.Linq.Enumerable.First[TSource](IEnumerable`1 source, Func`2 predicate)
   w System.Windows.Automation.Peers.FrameworkElementAutomationPeer.GetNameCore()
   w System.Windows.Automation.Peers.AutomationPeer.UpdateSubtree()
   w System.Windows.Automation.Peers.AutomationPeer.UpdateSubtree()
   w System.Windows.Automation.Peers.AutomationPeer.UpdateSubtree()
   w System.Windows.ContextLayoutManager.fireAutomationEvents()
   w System.Windows.ContextLayoutManager.UpdateLayout()
   w System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg)
   w System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
   w System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
   w System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)
   w System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   w MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
   w System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   w System.Windows.Threading.DispatcherOperation.InvokeImpl()
   w System.Threading.ExecutionContext.runTryCode(Object userData)
   w System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
   w System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
   w System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   w System.Windows.Threading.DispatcherOperation.Invoke()
   w System.Windows.Threading.Dispatcher.ProcessQueue()
   w System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   w MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   w MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   w System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   w MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
   w System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   w System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
   w MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
   w System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
   w System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
   w System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
   w System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
   w SDEWinForm.Program.Main() w d:\SDEControlsLibrary\SDEControlsLibrary\SDEWinForm\Program.cs:wiersz 20

TSource First[TSource](System.Collections.Generic.IEnumerable`1[TSource], System.Func`2[TSource,System.Boolean])

System.Collections.ListDictionaryInternal

System.ArgumentNullException

I removed all Linq expressions in act od desperation but it still the same. I even turned off colums and rows virtualization on gridviews cause i've read that could be the problem.

I obtained those errors during remote debugging with all possible exceptions checked and there is really nothing else going on.
I'm aware of that you will probably not be able to reproduce this behavior but Ill be gratefull for any help and ideas.

Regards
Maciek

Hi,

When zooming into a chart and selecting a point, the selection seems to move along with the scroll bars. I noticed this while adding an annotation feature in my project, and used the selection example from your documentation to test it.
 

I've attached a couple of screenshots to make it clearer. The selected point shouldn't move - do you know why this is happening?

Thanks! 

Hi There,
I want to remove the vertical lines at gridviewfooter, wanted to display footer without any separators.
can you please help me how i can do this?

Attached a screenshot please check once.


Thanks in advance.
Srinivas.

I'd like to to remove all of the outside margin/padding around the gauge and then make the width of the bar indicator wider.

I've attached images to demonstrate my current (default) look and my desired look.

Thank you