Hello everybody,

in my WPF Application I am using Telerik's RadGridView. Everything is working fine so far.

But there is a little design issue, I am facing with.

In my App I am using Windows11Theme, if I use this, every row in my GridView is starting with a blue column. Sadly I am not able to find out, how to change this color.

Previously, I was using Windows8Theme and there I used "StrongColor" property to change this color. But I am not able to find out, how to change it in Windows11Theme.

Attached is an image, which shows the row, I want to change.

Thanks for your support.

BR,

Alex

I'm looking for a generic solution for handling a common issue with RadNumericUpDown. When binding the Value property to a double (non-nullable) and the user clears the input (e.g., with Backspace), the control throws a "value cannot be converted" error.

I'm aware that changing the bound property to a double? would resolve this, but in my case, this is not feasible across the entire application due to the extensive refactoring it would require in legacy code.

As a senior WPF developer, I prefer generic solutions that can be applied globally—such as using an attached property via styles—so the fix can be inherited by all RadNumericUpDown instances.

I've considered using FallbackValue or TargetNullValue, but these aren't suitable as they require changes to each individual binding and would assign a default value, which is not ideal.

Since the value in the ViewModel doesn't actually change when the conversion fails, it seems reasonable to simply suppress the error and let the control revert to the source value.

Is there a way to implement an attached property that can detect this conversion failure and handle it gracefully—possibly by resetting the control’s value to the bound property from the DataContext?

Any suggestions or sample code would be greatly appreciated.

Thanks!

I'm having an issue when using the RadWizard where as the user tabs through the fields on the wizard page, when they get to the end and hit tab again, they expect the left most button in the footer to then take focus but instead it focuses on the footer container first. So they have to hit tab one more time to focus the button. Can this be fixed in the next version? What can I do in the meantime as a temporary fix?

I was able to duplicate the issue in the Telerik UI for WPF demo app. See screenshot for sample.

1. Go to the GridView | Filtering Configuration example in the Telerik WPF Demo app.

2. Choose Popup for Filtering Mode.

3. Open filtering for Company Name.

4. Alt-Tab to another app window.

5. Observe as filter window appears on top of the app's window.

Is this expected behaviour?

Hello

Please check the attached file: contextmenu.png
I want the 1st row icon column to have Padding=0,0 and Margin=0,0,0,0

Waiting for your reply

Hi,

how can we hide the Navigation Options from the RadOfficeNavigationBar?

<telerik:RadOfficeNavigationBar>
    <telerik:RadOfficeNavigationBarItem Content="{lex:Loc Key=EditCommandText}" 
                                        Command="{Binding EditCommand}" >
        <telerik:RadOfficeNavigationBarItem.Style>
            <Style TargetType="telerik:RadOfficeNavigationBarItem">
                <Setter Property="Visibility" Value="Visible" />
                <Style.Triggers>
                    <DataTrigger Binding="{Binding FormMode}" Value="{x:Static tim:FormMode.Modify}">
                        <Setter Property="Visibility" Value="Collapsed" />
                    </DataTrigger>
                </Style.Triggers>
            </Style>
        </telerik:RadOfficeNavigationBarItem.Style>
    </telerik:RadOfficeNavigationBarItem>
    <telerik:RadOfficeNavigationBarItem Content="{lex:Loc Key=SaveCommandText}" 
                                        Command="{Binding SaveCommand}" >
        <telerik:RadOfficeNavigationBarItem.Style>
            <Style TargetType="telerik:RadOfficeNavigationBarItem">
                <Setter Property="Visibility" Value="Collapsed" />
                <Style.Triggers>
                    <DataTrigger Binding="{Binding FormMode}" Value="{x:Static tim:FormMode.Modify}">
                        <Setter Property="Visibility" Value="Visible" />
                    </DataTrigger>
                </Style.Triggers>
            </Style>
        </telerik:RadOfficeNavigationBarItem.Style>
    </telerik:RadOfficeNavigationBarItem>
    <telerik:RadOfficeNavigationBarItem Content="{lex:Loc Key=CancelCommandText}" 
                                        Command="{Binding CancelCommand}" >
        <telerik:RadOfficeNavigationBarItem.Style>
            <Style TargetType="telerik:RadOfficeNavigationBarItem">
                <Setter Property="Visibility" Value="Collapsed" />
                <Style.Triggers>
                    <DataTrigger Binding="{Binding FormMode}" Value="{x:Static tim:FormMode.Modify}">
                        <Setter Property="Visibility" Value="Visible" />
                    </DataTrigger>
                </Style.Triggers>
            </Style>
        </telerik:RadOfficeNavigationBarItem.Style>
    </telerik:RadOfficeNavigationBarItem>
</telerik:RadOfficeNavigationBar>

Regards,

Andreas

Hello

Question  about ===> public ControlTemplate SeparatorTemplateKey {get;set}

using System.Windows.Controls;
public override ObservableCollection<MenuItem> GetMenu()
{
    var contextmenuitem = new ObservableCollection<MenuItem>(); 
    var eRNode = crateMenuItem("Report");
    eRNode.Items.Add(createMenuItem("Sub"));
  
    contextmenuitem.Add(Separate); <===
    ControlTemplate template = new ControlTemplate();
    template.key = "Tamplate";
    contextmenuitem.Add(SeparatorTemplateKey(template)); <===ControlTemplate x:Key="Template" OF XAML.xaml File .... <==I don't know grammar. How do I write code?
    contextmenuitem.Add(eRNode);
}

WPF, RadContextMenu

Is there a way to display different colors in the RadContextMenu ?

Display RadContextMenu various colors based on the Separator of RadContextMenu.

In RadContextMenu,

Also, can you set the image margin(or icon margin) to 0?

Please check the attached file : RadContextMenu2WPF.png, RadContextMenu1WPF.png

Hi Team,

We have developer license for the Telerik UI for WPF product, however we are unable to get the developer MSI for the Telerik UI for WPF 2024.1.130.45. Only the trial version is visible now.

Could you please guide us to get the dev  version of 2024.1.130.45? 

Hello Telerik Team,

I'm working with the RadDiagram control and have a scenario where I need certain RadDiagramShapes to display their AdditionalContent persistently – meaning the content should remain visible even when the shape is not selected. Additionally, I want to achieve this behavior and customize the AdditionalContent's styling purely through MVVM binding approaches.

Could you please provide guidance or code examples demonstrating:

1. How to keep AdditionalContent visible for specific shapes regardless of selection state.
2. How to dynamically style AdditionalContent (e.g., colors, templates) using MVVM properties.

Any suggestions for binding strategies or relevant Shape/Style properties would be greatly appreciated. Thank you!