控件的Content属性（Silverlight）

Content 属性内可以放一个任何控件 

 <Button Width="400" Height="400"  Margin="20" HorizontalContentAlignment="Stretch" VerticalContentAlignment="Stretch"  >
            <Button.Content>
                <Grid >
                    <Grid.RowDefinitions>
                        <RowDefinition />
                        <RowDefinition />
                        <RowDefinition />
                    </Grid.RowDefinitions>
                    <Ellipse Width="96" Height="96" Fill="Red"   StrokeThickness="2"  Stroke="Green"  />
                     <Image Grid.Row="1"  Source="ff.jpg" Stretch="Uniform" />
                    <TextBlock Grid.Row="2" Text="Click Me" FontSize="24" TextAlignment="Center" />
                </Grid>
            </Button.Content>
        </Button>