C# Silverlight更改按钮文本

我有一个有多个内容的按钮。我想在单击按钮时更改它的文本

XAML：

这会使矩形消失，尽管我只想更改文本。如何执行此操作？

您需要修改of按钮以始终显示矩形

<Button HorizontalAlignment="Left" Height="114" Margin="33,58,0,0" VerticalAlignment="Top" Width="224" Style="{StaticResource GlassButtonStyle}" FontSize="26.667" Click="Button_Click_1" Name="button1" Content="Click Me">
<Button.Template>
<ControlTemplate>
            <StackPanel Orientation="Horizontal">
                <Rectangle Height="69" Stroke="Black" Width="69">
                    <Rectangle.Fill>
                        <LinearGradientBrush EndPoint="0.004,1.044" StartPoint="0.739,0.25">
                            <GradientStop Color="Black" Offset="0"/>
                            <GradientStop Color="White" Offset="1"/>
                        </LinearGradientBrush>
                    </Rectangle.Fill>
                </Rectangle>

                <ContentPresenter Content="{TemplateBinding Content}" />
            </StackPanel>

</ControlTemplate>
</Button.Template>
</Button>

看

button1.Content = "Hello world";

<Button HorizontalAlignment="Left" Height="114" Margin="33,58,0,0" VerticalAlignment="Top" Width="224" Style="{StaticResource GlassButtonStyle}" FontSize="26.667" Click="Button_Click_1" Name="button1" Content="Click Me">
<Button.Template>
<ControlTemplate>
            <StackPanel Orientation="Horizontal">
                <Rectangle Height="69" Stroke="Black" Width="69">
                    <Rectangle.Fill>
                        <LinearGradientBrush EndPoint="0.004,1.044" StartPoint="0.739,0.25">
                            <GradientStop Color="Black" Offset="0"/>
                            <GradientStop Color="White" Offset="1"/>
                        </LinearGradientBrush>
                    </Rectangle.Fill>
                </Rectangle>

                <ContentPresenter Content="{TemplateBinding Content}" />
            </StackPanel>

</ControlTemplate>
</Button.Template>
</Button>