Questions on UI for WPF Forum

2 answers

105 views

Frontmost item in RadCarouselPanel after load

Hi,

I have 5 items in a RadCarouselPanel and I'd like the initial behaviour of the control to show the leftmost item. Whatever i do it always seems to start with the middle item.

I've tried LineLeft, PageLeft etc etc, during the Loaded event of the control, and although programmatically these methods are having an effect on the HorizontalOffset of the control, by the time it actually displays the middle item is centred again.

What's up?

Cheers
John

Carousel

answered on 28 May 2010

2 answers

101 views

Object reference not set error

I have been receiving an “Object reference not set to an instance of an object.” error in the RadGridView. I am able to receive the error by creating a new WPF Application in VS2010 and placing a RadGridView within the main window. With the application running, click inside of the grid and press the Tab key. Are there any settings I should change to stop the error?

GridView

answered on 28 May 2010

1 answer

182 views

GridViewComboBoxColumn binding to object

Hello colleagues.
I've got issue. I want bind my Item to RadGridView and bind Type GridViewComboBoxColumn column

    
            public class Item: BaseDomain 
        
            { 
        
               public virtual int Id{ get; set; } 
        
               public virtual string Name{ get; set; } 
        
               public virtual ItemType Type{ get; set; } 
        
            }  
        
            public class ItemType : BaseDomain 
        
            { 
        
               public virtual int Id{ get; set; } 
        
               public virtual string Name{ get; set; } 
        
            }

I use this xaml:

    
            <telerik:GridViewComboBoxColumn Header="Type" UniqueName="Type"  
        
            DataMemberBinding="{Binding Type.Id}"  DisplayMemberPath="Name" SelectedValueMemberPath="Id">

At grid loading I populate ItemSource of column:

    
            ((GridViewComboBoxColumn)this.grServices.Columns["Type"]).ItemsSource = Repository<ItemType>.GetAll();

             grServices.ItemsSource = Repository<Item>.GetAll();

The problem is that at the RowEditEnded event e.NewData.Type is null at inserting and doesn't actual at editing.
What's wrong.
Please help.

GridView

answered on 28 May 2010

1 answer

27 views

Search fatal error

I use test app.

When i try to search "Boston" all works fine, but when search query is "chinese restaurants in San Francisco" I receive error

---------------------------

Fatal error!

---------------------------

Error message: Search Service Exception: Неправильный результат из-за исключения, возникшего во время операции. См. описание исключения в InnerException.

StackTrace: в Telerik.Windows.Controls.Map.BingSearchProvider.SearchServiceSearchCompleted(Object sender, SearchCompletedEventArgs e) в c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\DataVisualization\Map\Providers\Search\BingSearchProvider.cs:строка 427

в Telerik.Windows.Controls.Map.WPFBingSearchService.SearchServiceClient.OnSearchCompleted(Object state) в c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\DataVisualization\Service References\WPFBingSearchService\Reference.cs:строка 3375

в System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)

в System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)

Map

answered on 28 May 2010

1 answer

37 views

Desc search Fatal Error

Route Service Exception: An exception occurred during the operation, making the result invalid. Check InnerException for exception details.

at Telerik.Windows.Controls.Map.BingGeocodeProvider.GeocodeServiceReverseGeocodeCompleted(Object sender, ReverseGeocodeCompletedEventArgs e)

at Telerik.Windows.Controls.Map.WPFBingGeocodeService.GeocodeServiceClient.OnReverseGeocodeCompleted(Object state)

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.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, Boolean ignoreSyncCtx)

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.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.Threading.Dispatcher.Run()

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 Storage.Inventory.App.Main() in c:\work\test\Storage.Inventory\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()

Map

answered on 28 May 2010

5 answers

132 views

CanUserSelect not working with keyboard arrows

Hello,

On a grid, I set CanUserSelect to false. It works fine for mouse selection (the user cannot select a row with the mouse) but not with keyboard arrow keys.

Let me describe how to reproduce it: if you click on the grid (nothing is selected) but the grid gets the focus. Then, you use the arrow keys (up or down) and it selects the row just where you clicked (and not where the last selection was set in code)!

So, not only the user can select a row with the keyboard but "something" is also selected when clicking! Even if the selection doesn't change, the row that was clicked is still saved somewhere.

Is this a normal behavior? Am I missing an option on the grid to disable the keyboard select?
If it's a bug, do you have a workaround and when will it be corrected?

Best regards,

Daniel

EDIT: I forgot to specify that we use the Q1 2010.

GridView

answered on 28 May 2010

3 answers

94 views

Is StyleManager preventing Windows from being collected (GC) ?

Hi.
We encountered a problem using the StyleManager.
We designed a (long-living ?) app which opens and closes Windows (frequently ?).
The App is running like 7 hours a day (as a try Icon) and the user con Open different Windows.
When the App starts it sets

    
            Telerik.Windows.Controls.StyleManager.ApplicationTheme = new Telerik.Windows.Controls.Office_BlueTheme()

When a user openes a Window he manipulates some data and closes the Window again.
For some days now we have been searching for a memory leaks (the memory in use seemed to grow)...
It turns out that no Window (and from there no controller/presenter, adapter, repository, entity-context, data-object) will ever be garbage-collected.
Upon further investigation the leak disappeared when we commented out the StyleManager-Line.
Using clr-profiler we were able to determine that references are in place from root to all/most telerik controls (and from there to the containing Window) when using an ApplicationTheme.

Ist there a way (apart from running every window in it's own AppDomain) to set a theme on aplication-level and make use of garbage-collection ?

Yours,
Nils

General Discussions

answered on 28 May 2010

3 answers

113 views

How to create a different turing animation for book title

Hi,

I tried the book control in my WPF application. I need to have a book cover and a different flip animation for title i.e. given as example

http://www.quranflash.com/en/quranflash.html

In this example the look and feel of first cover is like the real book title effect. Is this kind of animation possible with RadBook? Please provide help in both cases that how I can be able to achieve this hard cover effect. Thanks in advance

Regards,

Haroon

Book

answered on 28 May 2010

2 answers

104 views

Reordering rows when finished editing

Hi guys,

I've got a telerik rad grid view data bound to a BindingList<items> with group descriptiors enabled and it seems that when I edit a cell and then commit it, the row gets shifted to the bottom of the current grouping.

Any ideas?

Cheers,

Tim.

GridView

answered on 28 May 2010

5 answers

193 views

Maximized RadWindow hides Windows Taskbar

Hi,

We've noticed an interesting behavior - when the RadWindow is maximized it hides the Windows' taskbar. Did anyone else run into this? Is there a simple solution for the matter?

Thanks,

yonadav

Window

answered on 28 May 2010