Hello,

I already implemented some drag and drop behaviors in my application. To do so, I create a DragVisual in the OnDragInitialize event (registered via DragDropManager.AddDragInitializeHandler), and I give it a DataContext (a Content actually) and a ContentTemplate. Then I can have a nice preview of the data being dragged that I can template as I wish and that will follow the mouse cursor.
This work perfectly when I'm dragging data from my app, to my app.

Now I am willing to be able to drag files, from the windows explorer, to a specific control of my application. I would like to create a DragVisual in the same way, when the mouse cursor enters one of the windows of my application (and destroy it if the mouse cursor leaves the window, but this is another problem).

The problem is that when the drag starts from another application, OnDragInitialize is not invoked (which makes perfectly sense). But how can I achieve to create a DragVisual in this context? None of the other drag'n'drop-related events have a DragVisual in their EventArgs.

Thanks

Hi,

i'm looking for a RadDiagramToolbox xaml example, Shapes, Container,.. should be filled in xaml not codebehind...


Thanks a lot
Best Regards
Rene

Hi,

we crearte the Shapes like this:


then we bin the Shapes to the toolbox


For example we habe a simple RectangleShape. With a cutom Tab in EditMode we select a Employee and now we want to edit the RectangleShape. Is it possible to change the view of the RectangleShape during runtim, for example see attached files.

Thanks a lot
Best Regards
Rene

I am trying to make it so my user can change the theme at runtime in my project. It works fine for most of the controls, however the TabControl as well as the MenuItems and Menus do not change. Is there something I am missing? I looked at the quickstart samples but I don't have that dll in my binaries folder. Is that intentional?

I have a RadPivotGrid setup as follows which gives the error stated in the title "The attachable property 'DataProvider' was not found in type 'RadPivotGrid'"
            <pivot:RadPivotGrid>
                <pivot:RadPivotGrid.DataProvider>
                    <pivot:LocalDataSourceProvider ItemsSource="{Binding Path=Events2}"/>
                </pivot:RadPivotGrid.DataProvider>
            </pivot:RadPivotGrid>

This is in Visual Studio 2013 Express with Telerik Q1 2014 WPF 4.5.

I also made sure I have the following references (and some extra):
Telerik.Pivot.Core
Telerik.Windows.Controls.Pivot
Telerik.Windows.Controls
System.Runtime.Serialization

It does compile but no interface is shown. Events is a list of standard objects with properties. If all works well should I assume that it just prints a flat grid with the above definition?

Hello everybody :)

I would like to know how to implement the drag and drop functionality between two TreeListViews.
I really appreciate it, if you can send me a working WPF project sample with this functionality.

Thanks, in advance, for your time.
Best regards.
Jorge

I  have my VSPackage extention for VS2010. 
I have tried to use with the GridView in my custom window pane, but  I have exception.
I referenced are following assemblies :
            Telerik.Windows.Controls
            Telerik.Windows.Controls.Data
            Telerik.Windows.Controls.Input
            Telerik.Windows.Controls.GridView
            Telerik.Windows.Data

I don't know what is missing?
I use the 2013.2.724.40 version.

[ERROR - 2014-03-19 16:03:46] FOUNDATION: Exception occurred. Message: System.Windows.Markup.XamlParseException: Provide value on 'System.Windows.Markup.StaticResourceHolder' threw an exception. ---> System.Exception: Cannot find resource named 'Telerik.Windows.Controls.GridViewDataColumn'. Resource names are case sensitive.
   at System.Windows.StaticResourceExtension.ProvideValue(IServiceProvider serviceProvider)
   at MS.Internal.Xaml.Runtime.ClrObjectRuntime.CallProvideValue(MarkupExtension me, IServiceProvider serviceProvider)
   --- End of inner exception stack trace ---
   at System.Windows.FrameworkTemplate.LoadTemplateXaml(XamlReader templateReader, XamlObjectWriter currentWriter)
   at System.Windows.FrameworkTemplate.LoadTemplateXaml(XamlObjectWriter objectWriter)
   at System.Windows.FrameworkTemplate.LoadOptimizedTemplateContent(DependencyObject container, IComponentConnector componentConnector, IStyleConnector styleConnector, List`1 affectedChildren, UncommonField`1 templatedNonFeChildrenField)
   at System.Windows.FrameworkTemplate.LoadContent(DependencyObject container, List`1 affectedChildren)
   at System.Windows.StyleHelper.ApplyTemplateContent(UncommonField`1 dataField, DependencyObject container, FrameworkElementFactory templateRoot, Int32 lastChildIndex, HybridDictionary childIndexFromChildID, FrameworkTemplate frameworkTemplate)
   at System.Windows.FrameworkTemplate.ApplyTemplateContent(UncommonField`1 templateDataField, FrameworkElement container)
   at System.Windows.FrameworkElement.ApplyTemplate()
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.Controls.Control.MeasureOverride(Size constraint)
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.ContextLayoutManager.UpdateLayout()
   at System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg)
   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.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.DispatcherOperation.InvokeImpl()
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   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, Int32 numArgs)
   at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)

Hello !
When i'm using filtering like described in:
http://www.telerik.com/help/wpf/radtreeview-how-to-implement-search-filter-sort.html

I'm not able to tab into the Treeview Control to select an item only with Keyboard Navigation.
The whole TreeView Control is selected (seen on Frame) but i can't select an Item.
If i select one first with the Mouse then i can use Keyboard Navigation.
But i want the user to use only Keyboard Navigation.

This behaviour can be tested with the Demo 'TreeView / FilterSearchSort' in the xaml-sdk.

If i tab through the FilterSearchSort Demo without any Input then i can Stop in the TreeView and Select the First Item with the Space Key.
If i filter the TreeView this doesn't work.

Any Suggestion ?

Hi, is there any way to restore all close, floating or hiding windows in wpf. I can only use code like this 

           if (mnuSymbols.IsChecked == false)
            {
                radPaneSymbols.RemoveFromParent();
            }
            else
            {
                radGroup0.Items.Add(radPaneSymbols);
            }

I need someting like a winforms redock service. Is it available in wpf?

Hello, I'm trying to select a cell in code, " http://www.telerik.com/help/wpf/gridview-how-to-set-current-cell.html" but the grid does not seem to set it the way it would if a user clicked into the cell. The problem is that the focus rectangle moves to that cell, but the background stays on the previous cell. I'm only allowing selection by single cell, not the whole row so I don't know if that matters. Also, the SelectedCells IList is 0, but if a user selected the cell, the list would have that cell included in it. Do I need to do something else to make this work like a user clicking into the cell?

Thanks,
Scott