or
3 answers
174 views
Hi,
Is it possible to select different visual template/theme dynamically in code to handle different type of alert. For example red background for critical message while blue background is for normal alert.
Thanks.
Martin Ivanov
Telerik team
answered
on
31 Aug 2018
3 answers
151 views
Hi there
How can I Dispose events handled for each cell created in CreateCellElement method in a custom column ?
In my RadGridView I use a CustomChechBoxColumn in which Cells are created By CreateCellElement(). and each cell is subscribed to checked/Unchecked events. every thing is ok BUT when RowVirtualization and ColumnVirtualization are enabled , it dosen't work properly.
How can I Dispose events handled for each cell created in CreateCellElement method in a custom column ?
In my RadGridView I use a CustomChechBoxColumn in which Cells are created By CreateCellElement(). and each cell is subscribed to checked/Unchecked events. every thing is ok BUT when RowVirtualization and ColumnVirtualization are enabled , it dosen't work properly.
Martin Ivanov
Telerik team
answered
on
31 Aug 2018
6 answers
238 views
Hi,
I'm creating a radgridview from an existing datatable. I need one column to have all its cells as hyperlinks to a directory.
I tried:
GridViewHyperlinkColumn gridViewHyperlinkColumn = new GridViewHyperlinkColumn(){Header = "test",TargetName = "c://" + rowValue};gridViewHyperlinkColumn.PreviewMouseDown += OpenTarget;datarow[column] = gridViewHyperlinkColumn;
But the cell shows the following result: Telerik.Windows.Controls.GridViewHyperlinkColumn instead of showing the row value underlined.
Can anyone help me?
Regards
1 answer
160 views
Telerik version: 2018.2.820.40, Visual Studio 2017, Theme Method = StyleManager, Theme Applied = ExpressionDark, MVVM
- When a tile is disabled, all controls within it were disabled.
- When a tile is re-enabled, all RadTabItem's Header are not refreshed. It's text foreground remains white color (expect black).
- When the tile is Maximized/Minimized, the RadTabItem's Headers are refreshed.
- I couldn't reproduce this abnormality in a simple project.
<telerik:RadTileView Grid.Row="1" IsEnabled="{Binding CanAccess, Mode=OneWay}" ItemsSource="{Binding TestBoardCollection, Mode=OneWay}" Style="{StaticResource tileStyle}"/>
<telerik:RadTabControl ItemsSource="{Binding TestSiteCollection, Mode=OneWay}" IsContentPreserved="True"> <telerik:RadTabControl.ItemTemplate> <DataTemplate> <TextBlock Text="{Binding TestSiteName, Mode=OneWay}"/> </DataTemplate> </telerik:RadTabControl.ItemTemplate> <telerik:RadTabControl.ContentTemplate> <DataTemplate> <ContentControl cal:View.Model="{Binding}" Margin="0,8,0,0"/> </DataTemplate> </telerik:RadTabControl.ContentTemplate></telerik:RadTabControl>
Dilyan Traykov
Telerik team
answered
on
30 Aug 2018
1 answer
108 views
Hi,
I have a RadGrid created via code behind, all data is of type String.
When i try to group any of the columns i get the following error:
System.InvalidCastException: 'Specified cast is not valid.'
More details:
System.InvalidCastException HResult=0x80004002 Message=Specified cast is not valid. Source=PresentationFramework StackTrace: at System.Windows.Controls.Border.get_BorderThickness() at System.Windows.Controls.Border.MeasureOverride(Size constraint) at System.Windows.FrameworkElement.MeasureCore(Size availableSize) at System.Windows.UIElement.Measure(Size availableSize) at System.Windows.Controls.Grid.MeasureOverride(Size constraint) 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.Controls.StackPanel.StackMeasureHelper(IStackMeasure measureElement, IStackMeasureScrollData scrollData, Size constraint) at System.Windows.Controls.StackPanel.MeasureOverride(Size constraint) 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.Controls.StackPanel.StackMeasureHelper(IStackMeasure measureElement, IStackMeasureScrollData scrollData, Size constraint) at System.Windows.Controls.StackPanel.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.InvokeOnRenderCallback.DoWork() 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 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) at System.Windows.Threading.DispatcherOperation.InvokeImpl() at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state) at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(Object obj) 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 MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext 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 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(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.Application.RunDispatcher(Object ignore) at System.Windows.Application.RunInternal(Window window) at System.Windows.Application.Run(Window window) at System.Windows.Application.Run() at MyModule.App.Main()I have no idea of what is wrong. Can anyone help me?
6 answers
318 views
draw pencil tool
# Mouse Action : Left,Right,Down,.... (loop) - OK
# Mouse Action : Left,Right,...(loop) - bug? : problem line
to show attach file(line.jpg) for detail information
# Mouse Action : Left,Right,Down,.... (loop) - OK
# Mouse Action : Left,Right,...(loop) - bug? : problem line
to show attach file(line.jpg) for detail information
Martin Ivanov
Telerik team
answered
on
30 Aug 2018
1 answer
198 views
The behavior of the lines on the treeview and treelistview are not what we would like.If you see the attachment, I have drawn a red line where I want the tree line of the parent to continue to end bottom of the last descendent, NOT end at the last direct child. This would be the case at any level not just the root. Is there any way to do that?
Also applies to treelistview. I'd just rather not post the exact same thing there as well.
Thanks.
Vladimir Stoyanov
Telerik team
answered
on
29 Aug 2018
1 answer
252 views
hello I can not find ViewCellFormatting in radgridview in wpf !
Vladimir Stoyanov
Telerik team
answered
on
29 Aug 2018
1 answer
402 views
I have a RadTimeSpanPicker with some Binding validation implemented. I want to immediately show the validation tooltip if a binding validation error occurs (see attached screenshot). Currently, the tooltip only shows when the mouse hovers over the upper right corner. However, this corner is so small it's difficult to position the mouse over it to see the error message. How do I immediately display this tooltip when the error is detected?
Vladimir Stoyanov
Telerik team
answered
on
29 Aug 2018
4 answers
408 views
Hi,
I'm following the example of RestoredTilesToSpanMultipleRowsAndColumns_WPF.
I want to define dynamic rows/columns. I tried the following:
<Style x:Key="tileViewPanel" TargetType="telerik:RadTileView"> <Style.Resources> <System:Object x:Key="RowsCount"/> <System:Object x:Key="ColumnsCount"/> </Style.Resources> <Setter Property="ItemsPanel"> <Setter.Value> <ItemsPanelTemplate> <local:Multicolumns RowsCount="{DynamicResource RowsCount}" ColumnsCount="{DynamicResource ColumnsCount}"/> </ItemsPanelTemplate> </Setter.Value> </Setter></Style>
Error:
System.Windows.Markup.XamlParseException: 'A 'DynamicResourceExtension' cannot be set on the 'RowsCount' property of type 'TemplateForm'. A 'DynamicResourceExtension' can only be set on a DependencyProperty of a DependencyObject.'
I also tried:
<Style x:Key="tileViewPanel" TargetType="telerik:RadTileView"> <Style.Resources> <System:Object x:Key="RowsCount"/> <System:Object x:Key="ColumnsCount"/> </Style.Resources> <Setter Property="ItemsPanel"> <Setter.Value> <ItemsPanelTemplate> <local:Multicolumns RowsCount="{Binding RowsCount}" ColumnsCount="{Binding ColumnsCount}"/> </ItemsPanelTemplate> </Setter.Value> </Setter> </Style>Error:
System.Windows.Markup.XamlParseException: 'A 'Binding' cannot be set on the 'RowsCount' property of type 'TemplateForm'. A 'Binding' can only be set on a DependencyProperty of a DependencyObject.'
Does anyone knows how i can define dynamic rows/columns for this example?
Regards
