c# - 如何在代码后面获取 ContentPresenter？

Question

我在 Themes\Generic.xaml 下有下面的代码

现在我需要在代码中获取 cPresenter 我该怎么做？

事实上，我尝试将 Silverlight 实现转换为 WPF 代码。我想使用类似 Silverlight 的东西:

FrameworkElement cp = this.GetTemplateChild("cPresenter") as FrameworkElement;

Themes\Generic.xaml

<Style TargetType="local:Marquee">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="local:Marquee">
                    <Border Background="{TemplateBinding Background}"
                            BorderBrush="{TemplateBinding BorderBrush}"
                            BorderThickness="{TemplateBinding BorderThickness}">    
                        <ScrollViewer Width="Auto" Height="Auto" HorizontalContentAlignment="Stretch" 
                             VerticalContentAlignment="Stretch" VerticalScrollBarVisibility="Disabled">
                            <Canvas>
                                <ContentPresenter  x:Name="cPresenter" VerticalAlignment="Center" HorizontalAlignment="Center"/>                            
                            </Canvas>
                        </ScrollViewer>
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

Answer 1

没有理由不应该在 WPF 中工作。将其放入您的 Marquee 代码中。

private ContentPresenter cPresenter;

public override void OnApplyTemplate()
{
   base.OnApplyTemplate();
   this.cPresenter = this.GetTemplateChild("cPresenter") as ContentPresenter;
}