Questions on UI for WPF Forum

1 answer

116 views

Hi,

I have an unexpected behavior with Docking control. To reproduce the issue, you can use the WPF Docking First Look example. Follow these steps:

Start the demo Docking First Look WPF Demo
Unpin the "Server tab explorer"
Click on the "hidden" "Server Explorer" tab (it appears)
Unpin the "Solution explorer" tab
"Server explorer" doesn't close!
Pin the the "Solution explorer" tab
Unpin the "Solution explorer" tab
"Server Explorer" tab opens unexpectedly after each attempt

You can use all of the docking examples to reproduce the issue.
The issue exist in Silverlight too.

Is there a way to avoid this?

Thanks,
Christophe

Docking

answered on 05 Sep 2012

3 answers

78 views

Set/Reset a Brush for a PointMark not works

Hello Team,

we like to give the user the possibility to select and deselect a PointMark in a LineSeriesDefinition.
Simply in the event ItemClick we change the brush of the .Fill property. But surprisingly, if we set the original brush (= nothing in the example), the view don't change.

This is the relevant code:

Private _manualPointMarkFill As Brush

Private _manualSelectedPointMark As

PointMark

Private Sub SetPointMarkSelectedState()

_manualPointMarkFill = _manualSelectedPointMark.Fill

_manualSelectedPointMark.Fill = New SolidColorBrush(Colors.Black)

End

Sub

Private Sub ClearPointMarkSelectedState()

If _manualSelectedPointMark IsNot Nothing Then

'The Color of the PointMark do not reset to white, the PointMark remains black.

_manualSelectedPointMark.Fill = _manualPointMarkFill

'That works, but is only correct if the PointMark was white before.

'_manualSelectedPointMark.Fill = Brushes.White

_manualSelectedPointMark = Nothing

End If

End Sub

I have made a little example project (*.Zip), but those files are not allowed to attach??

Do you have an explanation for this behaviour and a functioning idea?
Thank you

Chart

answered on 05 Sep 2012

1 answer

166 views

Disable animation between different ViewDefinitions

HI,
I'm using RadSchedulerView and i would like to disable the animation when ViewDefinitionChanged occurs.
what should i do?

thanks

ScheduleView

answered on 05 Sep 2012

1 answer

133 views

Feature request: PieChart instead of rectangle

Hello

Yes, its more a feature request than a issue. We have tool which is showing items (attachment). This items organized as a tree. That tool is self made and not the best code behind.
I am wondering, is it possible to use the TreeMap with PieCharts or something similar instead of rectangle as style?
And how to do that?

Thank you :)

TreeMap and PivotMap

answered on 05 Sep 2012

0 answers

137 views

Splitter position manual setting

Hello,

is it possible to manually set/modify a splitter's position (from codebehind/XAML)?
I have a splitcontainer with 2 radpanegroups in the DocumentHost.

Thanks for your help!

Regards,
Thomas

Docking

asked on 04 Sep 2012

0 answers

92 views

RadDataForm with hierarhical RadTreeView

Hi,

is it possible to bind raddataform to two or more itemsources?
I have hierarhical treeview with two different object collections, is it posible for dataform to switch between these collections(Itemsources) and use different templates for fields on selecteditem in treeview?

Thanks!

DataForm

asked on 04 Sep 2012

0 answers

102 views

RADWINDOW and Maximising with button

Hi,
I have an issue with the RADWINDOW when i want to maximise it with the button Maximize, the window doesn't take the full screen mode and the borders disappears(image in attachement) but when i double click on the task bar, it works correctly

below the code i use :

public static void NavigateToModal<T>(OpraViewName name, ParameterizedMessage message = null) where T : UIElement, new()
        {
            _message = message;
  
            object view = null;
            int Width =0, Height =0 ;
  
  
            switch (name)
            {
                case OpraViewName.AboutView:
                    view = new AboutView();
                    Width = 1000;
                    Height = 600;
                    break;
                case OpraViewName.ArticlePickerView:
                    view = new ArticlePickerView();
                    Width = 1000;
                    Height = 600;
                    break;
                case OpraViewName.ArticleLoaderView:
                    view = new ArticleLoaderView();
                    Width =  700;
                    Height = 600;
                    break;
                default:
                    break;
            }
  
             
  
            RadWindow modalWindows = new RadWindow();
            modalWindows.WindowStartupLocation = WindowStartupLocation.CenterOwner;
            modalWindows.MinHeight = Height;
            modalWindows.MinWidth = Width;
            modalWindows.Header = name.GetStringValue();
            modalWindows.Content = view;//The view is the user control i use
            modalWindows.ShowDialog();
             
        }

thanks.

General Discussions

asked on 04 Sep 2012

1 answer

112 views

[Solved] NullReferenceException was unhandled

Hi,
Sometime when i start my project hang with this error. It is possible for you to give me a direction where can be the mistake or how to find it? I use chart control and bind it from the xaml and i am not exactly sure how to find the error.

Please advise.

Regards,
Saykor

System.NullReferenceException was unhandled
Message=Object reference not set to an instance of an object.
Source=Telerik.Windows.Controls.Chart
StackTrace:
at Telerik.Windows.Controls.ChartView.OhlcSeriesBase.OnCategoryBindingChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) in c:\TB\102\WPF_Scrum\Release_WPF\Sources\Development\Controls\Chart\Visualization\CartesianChart\Series\Categorical\OhlcSeriesBase.cs:line 251
at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty dp)
at System.Windows.StyleHelper.ClearTemplateChain(HybridDictionary[] instanceData, FrameworkElement feContainer, FrameworkContentElement fceContainer, List`1 templateChain, FrameworkTemplate oldFrameworkTemplate)
at System.Windows.StyleHelper.ClearGeneratedSubTree(HybridDictionary[] instanceData, FrameworkElement feContainer, FrameworkContentElement fceContainer, FrameworkTemplate oldFrameworkTemplate)
at System.Windows.StyleHelper.DoTemplateInvalidations(FrameworkElement feContainer, FrameworkTemplate oldFrameworkTemplate)
at System.Windows.StyleHelper.UpdateTemplateCache(FrameworkElement fe, FrameworkTemplate oldTemplate, FrameworkTemplate newTemplate, DependencyProperty templateProperty)
at System.Windows.Controls.ContentPresenter.OnTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
at System.Windows.Controls.ContentPresenter.set_Template(DataTemplate value)
at System.Windows.Controls.ContentPresenter.OnContentTemplateChanged(DataTemplate oldContentTemplate, DataTemplate newContentTemplate)
at System.Windows.Controls.ContentPresenter.OnContentTemplateChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
at System.Windows.DependencyObject.InvalidateProperty(DependencyProperty dp)
at System.Windows.StyleHelper.InvalidateDependents(Style ownerStyle, FrameworkTemplate frameworkTemplate, DependencyObject container, DependencyProperty dp, FrugalStructList`1& dependents, Boolean invalidateOnlyContainer)
at System.Windows.StyleHelper.OnTriggerSourcePropertyInvalidated(Style ownerStyle, FrameworkTemplate frameworkTemplate, DependencyObject container, DependencyProperty dp, DependencyPropertyChangedEventArgs changedArgs, Boolean invalidateOnlyContainer, FrugalStructList`1& triggerSourceRecordFromChildIndex, FrugalMap& propertyTriggersWithActions, Int32 sourceChildIndex)
at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
at Telerik.Windows.Controls.TabControl.RadTabControlBase.set_SelectedContentTemplate(DataTemplate value) in c:\TB\102\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\TabControl\RadTabControlBase.Properties.cs:line 644
at Telerik.Windows.Controls.RadTabControl.UpdateSelectedContentProperties() in c:\TB\102\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\TabControl\RadTabControl.cs:line 365
at Telerik.Windows.Controls.TabControl.RadTabControlBase.NotifyChildContentChanged() in c:\TB\102\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\TabControl\RadTabControlBase.cs:line 102
at Telerik.Windows.Controls.RadTabItem.OnLoaded(Object sender, RoutedEventArgs e) in c:\TB\102\WPF_Scrum\Release_WPF\Sources\Development\Controls\Navigation\TabControl\RadTabItem.cs:line 423
at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
at System.Windows.RouteItem.InvokeHandler(RoutedEventArgs routedEventArgs)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.EventRoute.InvokeHandlers(Object source, RoutedEventArgs args)
at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
at System.Windows.UIElement.RaiseEvent(RoutedEventArgs e)
at System.Windows.FrameworkElement.OnLoaded(RoutedEventArgs args)
at MS.Internal.FrameworkObject.OnLoaded(RoutedEventArgs args)
at System.Windows.BroadcastEventHelper.BroadcastEvent(DependencyObject root, RoutedEvent routedEvent)
at System.Windows.BroadcastEventHelper.BroadcastLoadedSynchronously(DependencyObject rootDO, Boolean isLoaded)
at System.Windows.BroadcastEventHelper.BroadcastLoadedEvent(Object root)
at MS.Internal.LoadedOrUnloadedOperation.DoWork()
at System.Windows.Media.MediaContext.FireLoadedPendingCallbacks()
at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
at System.Windows.Media.MediaContext.AnimatedRenderMessageHandler(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.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Int32 numArgs)
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.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
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.TranslateAndDispatchMessage(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 Puma.App.Main() in D:\Projects\VisualStudio2010\Puma\obj\x86\Debug\App.g.cs:line 0
at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
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()
InnerException:

Chart

answered on 04 Sep 2012

1 answer

370 views

Format Timespan

I have a column that is stored in SQL as a bigint and represents a Timespan duration (ticks). How do I format it to show hours, minutes and seconds.

Thanks

GridView

answered on 04 Sep 2012

8 answers

290 views

RadGridView IDataErrorInfo styling

Hi,

I have window with a RadGrid, bound to a collection of products. The Product domain object implements INotifyPropertyChanged and IDataErrorInfo(all my validation rules resides within my domain objects).

Problem : When I change a field and tab out, the validation rule fails. This works fine, but my radgridcell renders multiple red borders(adorners) within the cell.

I looked at the online sample code. When I remove the IDataErrorInfo from my domain object, and implement the CellValiding event on my window code behind, this issue seems to be resolved. I dont like this option, because I want my validation logic in my domain.

How do I solve the above mentioned issues. Is it possible to style my gridrow, gridcells to hide some of the inner borders?

Regards

GridView

answered on 04 Sep 2012