C#•10mo ago

❔ WPF TextBlock colored background no stretching with ListBox HorizontalContentAlignment

This is my XAML code for the list:

        <!-- COM port list -->
        <ListBox Grid.Row="1" Margin="6" HorizontalContentAlignment="Stretch" ItemsSource="{Binding ComPorts}">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <TextBlock Background="LightGray" HorizontalAlignment="Center" FontSize="20" Height="30" TextAlignment="Center" FontWeight="Bold" Text="{Binding}"></TextBlock>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>

        <!-- COM port list -->
        <ListBox Grid.Row="1" Margin="6" HorizontalContentAlignment="Stretch" ItemsSource="{Binding ComPorts}">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <TextBlock Background="LightGray" HorizontalAlignment="Center" FontSize="20" Height="30" TextAlignment="Center" FontWeight="Bold" Text="{Binding}"></TextBlock>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>

Here is what the form looks like right now: I can't get the gray background to extend across the entire list item.

2 Replies

Klarth•10mo ago

Try to style the ListBoxItem instead to stretch it. https://stackoverflow.com/a/2924249/5348693

Stack Overflow

How to get a ListBox ItemTemplate to stretch horizontally the full ...

I want to have the ListItems to extend with their orange background the full width of the Listbox. Currently they are only as wide as the FirstName + LastName. I've set every element I can to:

Accord•10mo ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ WPF TextBlock colored background no stretching with ListBox HorizontalContentAlignment