How can I set different Tooltip text for each item in a listbox?

Question

I have a listbox that is databound to a Collection of objects. The listbox is configured to display an identifier property of each object. I would like to show a tooltip w

Answer 1

Here is a Style that creates a group of RadioButtons by using a ListBox. All is bound for MVVM-ing. MyClass contains two String properties: MyName and MyToolTip. This will display the list of RadioButtons including proper ToolTip-ing. Of interest to this thread is the Setter for ToolTip near bottom making this an all Xaml solution.

Example usage:

ListBox Style="{StaticResource radioListBox}" ItemsSource="{Binding MyClass}" SelectedValue="{Binding SelectedMyClass}"/>

Style:

    <Style x:Key="radioListBox" TargetType="ListBox" BasedOn="{StaticResource {x:Type ListBox}}">
    <Setter Property="BorderThickness" Value="0" />
    <Setter Property="Margin" Value="5" />
    <Setter Property="Background" Value="{x:Null}" />
    <Setter Property="ItemContainerStyle">
        <Setter.Value>
            <Style TargetType="ListBoxItem" BasedOn="{StaticResource {x:Type ListBoxItem}}">
                <Setter Property="Template">
                    <Setter.Value>
                        <ControlTemplate TargetType="ListBoxItem">
                            <Grid Background="Transparent">
                                <RadioButton Focusable="False" IsHitTestVisible="False" IsChecked="{TemplateBinding IsSelected}" Content="{Binding MyName}"/>
                            </Grid>
                        </ControlTemplate>
                    </Setter.Value>
                </Setter>
                <Setter Property="ToolTip" Value="{Binding MyToolTip}" />
            </Style>
        </Setter.Value>
    </Setter>
</Style>