A multiline text box.
<UserControl x:Class='SilverlightApplication3.MainPage' xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation' xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml' xmlns:d='http://schemas.microsoft.com/expression/blend/2008' xmlns:mc='http://schemas.openxmlformats.org/markup-compatibility/2006' mc:Ignorable='d' d:DesignWidth='640' d:DesignHeight='480'> <Grid x:Name="LayoutRoot" Background="White"> <Grid> <Grid.RowDefinitions> <RowDefinition Height="Auto"></RowDefinition> <RowDefinition></RowDefinition> </Grid.RowDefinitions> <TextBlock Text="Description:" FontFamily="Verdana" FontSize="14" /> <TextBox x:Name="myTextBox" AcceptsReturn="True" TextWrapping="Wrap" FontFamily="Verdana" FontSize="14" Grid.Row="1" Height="150" Width="450" /> </Grid> </Grid> </UserControl>