If you want to use ItemsControl
you can change ItemTemplate
to RadioButton
with custom ControlTemplate
that will include Border
which Background
would change to Red when IsChecked == true
:
<ItemsControl DataContext="{Binding [someViewModel]}" BorderBrush="Black" ItemSource="{Binding someList}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<RadioButton Content="{Binding something}" GroupName="radioGroup">
<RadioButton.Template>
<ControlTemplate TargetType="{x:Type RadioButton}">
<Border Background="Green" x:Name="PART_Border">
<ContentPresenter/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsChecked" Value="True">
<Setter TargetName="PART_Border" Property="Background" Value="Red"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</RadioButton.Template>
</RadioButton>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
However I don't see a reason why you cannot use ListBox
with SelectionMode=Single
(default value) and change Template
of ListBoxItem
:
<ListBox DataContext="{Binding [someViewModel]}" BorderBrush="Black" ItemSource="{Binding someList}">
<ListBox.ItemContainerStyle>
<Style TargetType="{x:Type ListBoxItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListBoxItem}">
<Border Background="Green" x:Name="PART_Border">
<ContentPresenter/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsSelected" Value="True">
<Setter TargetName="PART_Border" Property="Background" Value="Red"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ListBox.ItemContainerStyle>
</ListBox>
or even do something like this, without changing Template
:
<ListBox DataContext="{Binding [someViewModel]}" BorderBrush="Black" ItemSource="{Binding someList}">
<ListBox.Resources>
<SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" Color="Red"/>
</ListBox.Resources>
<ListBox.ItemContainerStyle>
<Style TargetType="{x:Type ListBoxItem}">
<Setter Property="Background" Value="Green"/>
</Style>
</ListBox.ItemContainerStyle>
</ListBox>
In WPF it's generally much easier to pick a control that has functionality that you need and style it to look like you want then do this the other way round