Question

我们正在开发一个使用通用自定义ContentControl的Silverlight应用程序。此ContentControl具有在Generic.xaml中指定的控件模板。

继承的ContentControl的模板......

<Style TargetType="local:ExtContentControl">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="local:ExtContentControl">
                <Border x:Name="content" Background="{TemplateBinding Background}"
                        BorderBrush="{TemplateBinding BorderBrush}"
                        BorderThickness="{TemplateBinding BorderThickness}"
                        Child="{TemplateBinding Content}">
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

继承的ComboBox的模板......

<controltemplate targettype="local:ExtComboBox"></controltemplate>

...

<Rectangle x:Name="FocusVisualElement" IsHitTestVisible="false" Margin="1" Opacity="0" RadiusY="2" RadiusX="2" Stroke="#FF6DBDD1" StrokeThickness="1"/>

实例化时，ContentControl的内容设置为（通用）控件，可以是Textbox，Dropdown，Label或Datepicker。

public class ExtContentControl : ContentControl
{
    public ExtContentControl()
    {
        this.DefaultStyleKey = typeof(ExtContentControl);

        RenderControl();
    }

    private void RenderControl()
    {
        ExtComboBox extComboBox = new ExtComboBox();
        this.Content = extComboBox;
    }

    public override void OnApplyTemplate()
    {
        base.OnApplyTemplate();

        Border bor = GetTemplateChild("content") as Border;

        ExtComboBox cmbTest = bor.Child as ExtComboBox;

        //Find FocusVisualElement from ExtComboBox Control Template
        //Rectangle rec = cmbTest.FindName("FocusVisualElement") as Rectangle;
        //cmbTest returns null
    }
}

正如你在我上次评论中所看到的那样......

//从ExtComboBox控件模板中查找FocusVisualElement // Rectangle rec = cmbTest.FindName（“FocusVisualElement”）为Rectangle; // cmbTest返回null

如何从ContentControl内的OnApplyTemplate内部获取FocusVisualElement？

希望这是有道理的。

Answer 1

解决方案......

http://www.codeproject.com/Questions/192431/Hover-Foreground-Colour-with-dynamic-binding-Conte.aspx

获取ContentControl Control的模板子项？

1 个答案: