As soon as you host a RadDiagram inside a RadTabItem which is not the first RadTabItem in the collection you get the following exception when you click on the settings pane icon:

System.ArgumentNullException was unhandled by user code
  Message=Value cannot be null.
Parameter name: source
  Source=System.Core
  ParamName=source
  StackTrace:
       at System.Linq.Enumerable.Select[TSource,TResult](IEnumerable`1 source, Func`2 selector)
       at Telerik.Windows.Controls.Diagrams.Extensions.SettingsPaneView.UpdateEditor(DependencyObject editor) in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Diagrams\Extensions\SettingsPane\SettingsPaneView.cs:line 321
       at Telerik.Windows.Controls.Diagrams.Extensions.SettingsPaneView.OnRegisterEditor(Object sender, RadRoutedEventArgs args) in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Diagrams\Extensions\SettingsPane\SettingsPaneView.cs:line 265
  InnerException: 

I sat for hours and hours to figure out the cause of this problem. 

It works fine when the RadDiagram get's hosted in the first TabItem but if you move it to any other TabItem you start getting problems with the settingspane.

Here is a few screenshots to demonstrate the problem:
http://screencast.com/t/mfWlB20nNP
http://screencast.com/t/ccXGMklHFe
Here is a video to demonstrate:
http://screencast.com/t/5khAEDE4 

Hi,

our situation is as follows: a RadGridView is shown on the left part of the screen. Right from that there is a RadTabControl with dynamic RadTabItems. Every RadTabItem holds a RadTileView control. The RadTabControl/Items + RadTileView/Items reside in a UserControl (TileViewTabControl2b.xaml in the demo app). Both the RadGridView in the main window and the RadTabControl in the usercontrol use a DataTemplate to render their content (ContentViewModel->RadGridView, WorkspaceViewModel->RadTabControl). Now we want to drag an item from the RadGridView to the RadTileView (inside the RadTabItem). 
Because the RadTabItem and RadTileView do not exist at compile time I pass the handlers to the DragDropManager when the controls are loaded. The handler passed to AddDragOverHandler() is catched as expected but the other handlers like the OnDrop handler are not catched. Any idea why these handlers are not called? 
More general question: what is the preferred way to use the DragDropManager for controls that are created at runtime (by XAML, not in the code behind) like when MVVM is applied?

A demo project can be found here.

Thanks in advance and kind regards,
Vincent
. 

Hi All

I have a scenario where a user has a grid with a menu, in that menu they can pick a bunch of options which dictate which columns are shown and which columns are not.

Some of the hideable columns have filters on them. I am using a single rowmodel, and as such, if the user filters on a column,  then hides it, they get a different set of information but the filter remains applied, and the grid is filtered. This is done because the first 5 or so columns are common and then the remaining columns change.

What is the best way to remove a filter when the column is hidden?

Regards,
Ian

When we set IsEnabled="False" on a MaskedInput control, the background stays white.  Other controls using the same theme (Windows 7) turn to a gray.  Is this something I can address without creating a new template?

Thanks!

Is developing a program similar to Windows Explorer and I
Explorer, the directory my image files are displayed in the form of tiles.
But do not implement the two.
Displays a thumbnail image of the first, and the first point to read all of the images I want to display the entire image, and how? Notify tileview
Second, scrolling Unnatural on virtual mode when repeated up and down fastly.
I want Windows Explorer view large icon option.(scrolling very natural)
Is possible?

Please help me.

I have styled my column headers as in the attached image, and wish to have the Grouped by button and spacer in the column header row styled the same way, but I can't figure out what to style. 
Any help would be appreciated, thanks,
Steve

When editing the XAML in VS 2010 - the RadPane displays as a blank rectangle with no controls displayed in the visual editor. What is the problem and how can I use the visual editor with RadPane?

Hello, 

I get an error when I try to load a layout which is saved from the last application-session. In the samples-code below I have redruced the code.
If I swap <RadSplitContainer InitialPosition="FloatingDockable"> before <RadSplitContainer Dock="DockedLeft"> is works fine. But our layoutfiles are generated by RadDocking.SaveLayout.



Telerik WPF Version 2012.2.725.40







Last_Layout.xml 

We are using the Telerik controls in developing our application. We were using Coded UI Test to test our application.

We have created a user control using the Telerik controls and we have hosted this user control in our application.If the user control is placed directly under RadPaneGroup, CUIT is not able to highlight them.

Following are our observations:

 

1. After running the sample application from the VSTS solution and try to identify the controls using Coded UI Test Builder, I am seeing an exception in the application solution. I have attached the snapshot of the exception to the thread.
2. From the exception message it is clear that there is some issue with the AutomationPeer of RadPane.

Any help here is greatly appreciated.

Thanks,
Vijay

 

Hi,

I found that there is a property for Bollinger Band thickness (StrokeThickness):


However, when the indicator displays, only the upper band thickness will be effective for changing the StrokeThickness. I cannot find how to change the thickness of the lower band.
Any help?

Many thanks!
Frankie