The ListBox is an ItemsControl which displays items in a multi-line list box and allows individual selection.

The items to display in the ListBox are specified using the Items property. This property will often be bound to a collection on the control's DataContext:

<ListBox Items="{Binding MyItems}"/>

Customizing the item display

You can customize how an item is displayed by specifying an ItemTemplate. For example to display each item inside a red border with rounded corners:

<ListBox Items="{Binding MyItems}">
    <ListBox.ItemTemplate>
        <DataTemplate>
            <Border Background="Red" CornerRadius="4" Padding="4">
                <TextBlock Text="{Binding}"/>
            </Border>
        </DataTemplate>
    </ListBox.ItemTemplate>
</ListBox>

Preventing Horizontal Scrolling

By default if an item is too wide to display in the ListBox, a horizontal scrollbar will be displayed. If instead you want items to be constrained to the width of the ListBox (for example if you want wrapping text in the items) you can disable the horizontal scrollbar by setting ScrollViewer.HorizontalScrollBarVisibility="Disabled".

<ListBox Items="{Binding MyItems}" Width="250" ScrollViewer.HorizontalScrollBarVisibility="Disabled">
    <ListBox.ItemTemplate>
        <DataTemplate>
            <Border Background="Red" CornerRadius="4" Padding="4">
                <TextBlock Text="{Binding}" TextWrapping="Wrap"/>
            </Border>
        </DataTemplate>
    </ListBox.ItemTemplate>
</ListBox>

Source code

ListBox.cs