Hello,

I find some problem when displaying lot of datapoints. What I try to achieve is define a constant width for each series and allow scrolling in horizontal axis. We try it but looks as horizontal scrollbar only is activated if zoom is sets. We want to keep bar series at fixed size and scroll it. 

On the attached images you can see how it looks now our charts. Our desired behaviours it´s to get this problem solved  for charts with categories but same issue it´s happens without categories. 

The behaviour we want to achieve is like we have a infinite canvas a just move. (Look desired.jpgto find a sketch)

Is there any option to configure it properly?

Thanks!

I need to remove all Telerik styling. I've downloaded source code and replaced all templates and styles but the orange color persists. 

Inside the RadAutoCompleteBox I see a RadListBox named PART_ListBox which has a DropDownItemTemplate. I can't figure out how to utilize this. Here's an example:

<Border Background="White" BorderBrush="White">
   <TextBlock Background="White" Foreground="Black" Text="{Binding}" />
   <Border.Resources>
      <SolidColorBrush x:Key="ControlOuterBorder_Highlighted" Color="LightGray" />
      <SolidColorBrush x:Key="ControlInnerBorder_Highlighted" Color="LightGray" />
      <SolidColorBrush x:Key="ControlBackground_Highlighted" Color="#F6F6F6" />
      <SolidColorBrush x:Key="ControlSubItem_OuterBorder_Selected" Color="#F6F6F6" />
      <SolidColorBrush x:Key="ControlSubItem_InnerBorder_Selected" Color="#F6F6F6" />
      <SolidColorBrush x:Key="ControlSubItem_Background_Selected" Color="#F6F6F6" />
      <SolidColorBrush x:Key="ControlOuterBorder_Focused" Color="#F6F6F6" />
   </Border.Resources>
</Border>

Issues:

1. TextBlock still has an orange border on hover. I tried adding all the resources I could find in the Telerik source code to hopefully override this. No luck.

2. The text displays the class name. The {Binding} is calling ToString() on the class. I need to display the DisplayMemberPath. I can't do {Binding Name} because I have dozens of classes that could go in here.

Hello,

i had a custom user control which i use in a GridView Column. The foreground should change by a binded value and a IValueConverter. The "Bad" state is red and the normal state is the default theme color.

The result should look like this (But it does only with a dirty hack -> use 2 idendical textblock and hide one or the other):

BUT i dont know how to get the default foreground (yellow unselected and white selected)

I tried:

• return null in the IValueConverter -> No Color/Brush at all
• Use a Multibinding and return the given second Binding: <Binding Source="{x:Static telerik:CrystalPalette.Palette}" Path="MarkerColor"/> -> Select state is not respected
• Use a Multibinding to a "Helper" Element and return the value <Binding ElementName="ColorHelper" Path="Foreground"/>
  <TextBlock Name="ColorHelper" Foreground="{telerik:CrystalResource ResourceKey={x:Static telerik:CrystalResourceKey.MarkerBrush}}"> </TextBlock> -> Select state is not respected

Dear sir,

RadPane gives as a default ContextMenu while pressing on the header .

 The Context menu contains the option of Hide.

Our customers can't make this RasPane visibly again, therefore for them it's act like  delete.

how can we change the Text inside this default  ContextMenu from Hide to Delete?

thank you

yafit

Hi,

I have a dynamic structure managed with RadDocking, that works well.

<t:RadDocking x:Name="radDocking1"
                            RetainPaneSizeMode="DockingAndFloating"
                            CanAutoHideAreaExceedScreen="True"
                            Grid.Row="1" Margin="0 0 0 10"                            
                            BorderThickness="0"
							CloseButtonPosition="InPane"
                            Padding="0"
							Close="radDocking1_Close">
				<t:RadDocking.DocumentHost>
					<t:RadSplitContainer >
						<t:RadPaneGroup x:Name="_tabPlot" 
									SelectedIndex="{Binding TabAttivo}">
							<t:RadPaneGroup.Resources>
								<DataTemplate x:Uid="DataTemplate_1" 
										  x:Key="{x:Static r:ResourcesKeys.TabContent}" DataType="WpfPlot">
									<t:RadDocking RetainPaneSizeMode="DockingAndFloating" DataContext="{Binding}"
											  Background="{Binding IsSampled, Converter={StaticResource SampledToColor}}">
										<t:RadDocking.DocumentHost>
...

 But it was too complex and I transformed the part inside the more extern DocumentHost in a user control.

<UserControl x:Class="DeltaOhm.NsModules.View.MainPlotControl"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:DeltaOhm.NsModules.View"
			 xmlns:r="clr-namespace:DeltaOhm.NsModules.ResourceDictionaries"
		     xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"
			 xmlns:t="http://schemas.telerik.com/2008/xaml/presentation"
			 xmlns:vm="clr-namespace:DeltaOhm.NsModules.ViewModel" 
			 d:DataContext="{d:DesignInstance Type=vm:MainWindowViewModel}"
             mc:Ignorable="d" 
             d:DesignHeight="450" d:DesignWidth="800">

	
	<t:RadSplitContainer x:Name="_mainContainer" >
		<t:RadPaneGroup>
			<t:RadPaneGroup x:Name="_tabPlot" 
						SelectedIndex="{Binding TabAttivo}">
				<t:RadPaneGroup.Resources>
					<DataTemplate x:Key="{x:Static r:ResourcesKeys.TabContent}" DataType="WpfPlot">
						<t:RadDocking RetainPaneSizeMode="DockingAndFloating" DataContext="{Binding}"
											  Background="{Binding IsSampled, Converter={StaticResource SampledToColor}}">
							<t:RadDocking.DocumentHost>
								

Now, I tried many combinations of  radsplitcontainer/RadPaneGroup in and out of user control, but the best that I get was :

<UserControl x:Class="DeltaOhm.NsModules.View.MainPlotControl"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:DeltaOhm.NsModules.View"
			 xmlns:r="clr-namespace:DeltaOhm.NsModules.ResourceDictionaries"
		     xmlns:i="clr-namespace:System.Windows.Interactivity;assembly=System.Windows.Interactivity"
			 xmlns:t="http://schemas.telerik.com/2008/xaml/presentation"
			 xmlns:vm="clr-namespace:DeltaOhm.NsModules.ViewModel" 
			 d:DataContext="{d:DesignInstance Type=vm:MainWindowViewModel}"
             mc:Ignorable="d" 
             d:DesignHeight="450" d:DesignWidth="800">

	
	<Grid>
		<t:RadSplitContainer x:Name="_mainContainer" >
				<t:RadPaneGroup x:Name="_tabPlot" 
						SelectedIndex="{Binding TabAttivo}">
				<t:RadPaneGroup.Resources>
					<DataTemplate x:Key="{x:Static r:ResourcesKeys.TabContent}" DataType="WpfPlot">
						<t:RadDocking RetainPaneSizeMode="DockingAndFloating" DataContext="{Binding}"
											  Background="{Binding IsSampled, Converter={StaticResource SampledToColor}}">
							<t:RadDocking.DocumentHost>
								<t:RadDocking >

And in the original position:

<t:RadDocking.DocumentHost>
						<Grid><local:MainPlotControl x:Name="_mainPlot"/></Grid>
				</t:RadDocking.DocumentHost>

The result is similar but not identical

vs

I would like to follow this way to split the code, but i would like to get the second layout, are there any solutions?

 Thank you in advance

Luigi

I'm using MVVM and I'm trying to show a grid that has an ItemsSource of an IList<object>. THe IList object does ... eventually ... empoly a base model that uses INotifyPropertyChanged so any change SHOULD be bubbling to the surface.

This IList is updated and modified in the ViewModel and I guessed it was on a different Thread, after some research, so I tried using the Dispatcher in order to have it trigger any updates. But still nothign in the GUI is changing.

The list is updating async but then the Grid is never showing the changes. 

Any ideas would be greatly appreciated.

Hi,

i tried out the "Appointment Template" wpf Example. Is there a way to get a better performance. It's loading a long time?

Thanks

regards

rene

We are working on implementing exporting to Excel in our application's radgridview - we used this tutorial: https://docs.telerik.com/devtools/wpf/controls/radgridview/export/generic/export and it works with some errors. 

When trying to create a file with an .xls file extension, we get an error of "The format and extension of this file do not match". How do we fix this? 

When saving, the file extension appears twice after the "Excel files" in the save dialog. Why is this? Is this potentially causing issues? 

Also, we would like to change the formatting of the file on export - for example, freezing the headers, automatically setting the column widths, etc - what is the best way to set these properties?

dear sir,

 We use RadDocking inside our project.

unfortunately when we remove RadPane from the RadPaneGroup we still see it in visual tree as hidden= true. we want it to be removed  and not saved when we calls SaveLayout.

to avoid this behavior we use :RadPane.RemoveFromParent , but after calling the function we get this exception:

Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object.
   at Telerik.Windows.Controls.RadDocking.HidePane(RadPane pane)
   at Telerik.Windows.Controls.RadPane.Close()
   at Telerik.Windows.Controls.RadPane.OnIsHiddenChanged(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 Telerik.Windows.Controls.Docking.PaneGroupBase.ExecuteCommand(RadPane pane, ICommand command, PaneGroupBase groupBase)
   at Telerik.Windows.Controls.Docking.PaneGroupBase.<>c__DisplayClass3.<OnPaneCommandInvoke>b__2()
   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 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()

please we must find a solution .

Thanks you

Yafit