<Window x:Class="Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Use ComboBox" Height="300" Width="300"> <Grid> <ComboBox Height="39" HorizontalAlignment="Left" Margin="10,10,0,0" Name="ComboBox1" VerticalAlignment="Top" Width="120" SelectedIndex="0" VerticalContentAlignment="Center"> <ComboBoxItem>Apple</ComboBoxItem> <ComboBoxItem FontFamily="Comic Sans MS" FontSize="18" Foreground="Blue">Banana</ComboBoxItem> <ComboBoxItem>Cherry</ComboBoxItem> </ComboBox> </Grid> </Window>