In my WPF application using c#, I need a count of DataPoints of a series of particular RadCartesianChart using c# (code behind). How can I achieve it?

I have used the following line:

int a = ((Telerik.Windows.Controls.ChartView.CategoricalSeries)new System.Collections.Generic.Mscorlib_CollectionDebugView<CartesianSeries>(((Telerik.Windows.Controls.RadCartesianChart)my SelectedChart).Series).Items[0]).DataPoints.Count;

But it gives the following error:

Error	CS0122	'Mscorlib_CollectionDebugView<T>' is inaccessible due to its protection level

Hi guys,

is it possible to change the scheduleview in a way, that the rows only take the space the single row needs?
Currently if one row is bigger cause the groupheader is bigger all other rows are synced in height. This way it takes much more space then needed.

I searched for a property but not found one.

Greeting

Hello,

I recently updated to the new UI for WPF R3 2021 SP (v2021.3.1109).

I noticed that the appearance of my docking window has changed. It seems that the background color of the main window is inherited now. I attached two screenshots of my application, one before the change, one after.

Is this by accident or will it be a permant change?

regards,

Tobias

Hi guys,

I tried to use a RadCardView wich I wanted to replace a RadListBox, so I bound it to the same Collection in my ViewModel.

This collection is a ObservableCollection. To this collection are items added and removed from code behind from time to time. 
But when this happens I get a nullreference exception.
In the Listbox everything is fine...

And the exception of the CardView is the same with or without a Dispatcher.

Does anyone have an idea what could solve this?

When I bring up the Control Panel there is no "TURN FEATURES On/Off" check box for UI for WPF?  There is no Telerik for WPF New Project template either?  I see the standard MS WPF templates, but not Telerik?

In addition there is no option to add UI for UWP for VS 2022?

There IS an option to add WinForms for VS 2022 and I see those new project templates once added.

Am I missing something?

Cheers, Rob.

Hello

I am trying to migrate a WPF (Prism) project from .NET Framework to .NET Core.

I am having issues with some of the controls. To start with the RadRibbonView / Tab simply is not visible in both design and run time (see screenshots). I tried to replace it by dragging the controls from the Toolbox and I get the same result. 

The xaml code I am copying and pasting from an older project so maybe some property has changed, but I was expecting to see something at least in design time.

I am just hoping it is something rather simple.

To replicate, just create a new project: Prism Full App (.NET Core). pull (nuget) the telerik libraries (I did it from local nuget source), and replace MainWindow.xaml with attached.

I use Telerik.UI.for.Wpf.NetCore 2021.3.914

Thanks

Herald

Hi all,

As mentioned in the subject, I am creating an application displaying the data into the user. Beside the original sorting methods, I have to add an extra column under the Header Row as for the user types in with keywords.

The first pic will explain it further.

Hi All,
I'm trying the different ways to Set the SelectedItem to WPF telerik:RadComboBox after load the data and this is still showing  the default option empty.
I'm loading the data from my ViewModel (MVVM). Any ideas?

<telerik:RadComboBox x:Name="ActionList" DisplayMemberPath="Name" Grid.Column="1" Grid.Row="0"
                                         ItemsSource="{Binding ActionList, UpdateSourceTrigger=PropertyChanged}"
                                         SelectedItem="{Binding SelectedAction, Mode=TwoWay}"
                                         IsEditable="True" IsReadOnly="True" telerik:TextSearch.TextPath="Name"
                                         MinWidth="120" />
View Model:
private ActionModel _selectedAction;
public AtionModel SelectedAction
{
get { return _selectedAction; }
set { _selectedAction = value; NotifyOfPropertyChange(() => SelectedAction); }
}
 

Hi!

I have a RadGridView with multiple "templates" that change the order and visibility of columns by Binding. It works fine for the first time but when I change it again this happens:

I use Databinding to change DisplayIndex and IsVisible of every column like this:

DisplayIndex="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type UserControl}}, Path=DataContext.TableConfiguration.ExampleColumnIndex, FallbackValue=6, Mode=TwoWay, NotifyOnSourceUpdated=True}"

Any ideas? Thank you!