ComboBox Content Stretching...

07-02-2009 11:01 AM |

 I am trying to get the content of my ComboBox to stretch to the size of the DropDown.  I can't, for the life of me, solve this.  What am I missing?

<Grid x:Name="LayoutRoot" Background="White">
    <Grid.RowDefinitions>
        <RowDefinition Height="30" />
        <RowDefinition Height="*" />
    </Grid.RowDefinitions>
    <ComboBox x:Name="SearchesComboBox" Width="150">
        <ComboBox.ItemContainerStyle>
            <Style TargetType="ComboBoxItem">
                <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
            </Style>
        </ComboBox.ItemContainerStyle>
        <ComboBox.ItemTemplate>
            <DataTemplate>
                <Border BorderBrush="Black" BorderThickness="1">
                    <TextBlock Text="{Binding}" Margin="2" />
                </Border>
            </DataTemplate>
        </ComboBox.ItemTemplate>
        <sys:String>Two</sys:String>
        <sys:String>Four</sys:String>
        <sys:String>Six</sys:String>
    </ComboBox>
</Grid>