RadListBoxItem and IsKeyboardFocusWithin-IsSelected problem

[Zoltan]

Hello,

I'm using Telerik RadControls for WPF 2012.2.725.40. I have a RadListBox with a DataTemplate for the items. In the DataTemplate I have a TextBox and I want to achieve that when the user clicks inside the TextBox, the ListBoxItem gets selected. So, I made a Style:

<Style TargetType="{x:Type telerik:RadListBoxItem}">
    <Style.Triggers>
        <Trigger Property="IsKeyboardFocusWithin" Value="True">
            <Setter Property="IsSelected" Value="True" />
        </Trigger>
    </Style.Triggers>
</Style>

This works fine with standard WPF ListBox but not with RadListBox/RadListBoxItems.

The full source:

<Window x:Class="IsKeyboardFocusWithin.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"
        Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
        <DataTemplate x:Key="ListBoxItemTemplate">
            <TextBox Text="aasdf asdf asdf asdf asf " />
        </DataTemplate>

        <Style TargetType="{x:Type ListBoxItem}">
            <Style.Triggers>
                <Trigger Property="IsKeyboardFocusWithin" Value="True">
                    <Setter Property="IsSelected" Value="True" />
                </Trigger>
            </Style.Triggers>
        </Style>

        <Style TargetType="{x:Type telerik:RadListBoxItem}">
            <Style.Triggers>
                <Trigger Property="IsKeyboardFocusWithin" Value="True">
                    <Setter Property="IsSelected" Value="True" />
                </Trigger>
            </Style.Triggers>
        </Style>
    </Window.Resources>

    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition />
            <RowDefinition />
        </Grid.RowDefinitions>

        <ListBox x:Name="lstList" ItemTemplate="{StaticResource ListBoxItemTemplate}" VerticalContentAlignment="Stretch" ItemsSource="{Binding}"
                            SelectionMode="Single" />

        <telerik:RadListBox x:Name="lstTelerikList"
                            ItemTemplate="{StaticResource ListBoxItemTemplate}" VerticalContentAlignment="Stretch" ItemsSource="{Binding}"
                            SelectionMode="Single"
                            Grid.Row="1"/>
    </Grid>
</Window>

and the code-behind:

public partial class MainWindow : Window
{
    public MainWindow()
    {
        Items = new ObservableCollection<string>() { "Item 1", "Item 2", "Item 3" };
        InitializeComponent();
        lstList.DataContext = Items;
        lstTelerikList.DataContext = Items;
    }

    public ObservableCollection<string> Items
    {
        get;
        set;
    }
}

Am I doing something wrong?

[Masha]

Hi Zoltan,

There seems to be a problem with IsKeyboardFocusWithin property - it is not updated correctly when the textbox receives the focus. We will research this issue further, for now please use the workaround which we demonstrated in the attached project.

Hope this helps.

Kind regards,
Maria
the Telerik team