teleerik RadDocking显示浮动窗口头的工具提示

Question

我有一个带有窗格的RadDocking，每个窗格都包含具有唯一DataContext的自定义对象。对于每个窗格，我想要显示一个带有工具提示的标题。标题和工具提示都应该绑定到窗格的DataContext的某个属性。

因此我这样写:

<UserControl.Resources>
    <DataTemplate x:Key="DataTemplateTitleHeaderTooltip">
        <TextBlock Text="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerikDocking:RadPane}}, Path=Content.DataContext.TitleTootip}"
                   ToolTip="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type telerikDocking:RadPane}}, Path=Content.DataContext.TitleTootip}"
                   telerik:WindowHost.HitTestable="True" />
    </DataTemplate>
</UserControl.Resources>
<telerikDocking:RadDocking>
    <telerikDocking:RadDocking.DocumentHost>
        <telerikDocking:RadSplitContainer>
            <telerikDocking:RadPaneGroup>
                <telerikDocking:RadPane HeaderTemplate="{StaticResource DataTemplateTitleHeaderTooltip}">
                    <Border x:Name="Target"
                            Background="HotPink" />
                </telerikDocking:RadPane>
                <telerikDocking:RadPane Header="Pane02">
                    <Border Background="Fuchsia" />
                </telerikDocking:RadPane>
            </telerikDocking:RadPaneGroup>
        </telerikDocking:RadSplitContainer>
    </telerikDocking:RadDocking.DocumentHost>
</telerikDocking:RadDocking>

而"Target"具有以下DataContext:

public class MyModel : DependencyObject
{
    #region TitleTootip
    /// <summary>
    /// Gets or sets the tool tip for our model
    /// </summary>
    public string TitleTootip
    {
        get { return (string) GetValue(TitleTootipProperty); }
        set { SetValue(TitleTootipProperty, value); }
    }
    /// <summary>
    /// Identifies the <see cref="TitleTootip"/> property.
    /// </summary>
    public static readonly DependencyProperty TitleTootipProperty =
        DependencyProperty.Register("TitleTootip", typeof (string), typeof (MyModel), new UIPropertyMetadata(""));
    #endregion
}

当窗格停靠到documentthost中时，这工作得很好。但是，当我分离窗格时，标题和工具提示都消失了。

澄清一下，如果标题和工具提示不仅在停靠状态下出现，而且在窗口浮动时出现，那将是非常好的。

Answer 1

您可以使用RadPane的Title和TitleTemplate属性来影响ToolWindow的标题如何模板化。它们类似于Header和HeaderTemplate，只是在窗格浮动时使用。

另外，不要在头/标题的模板中使用相对源，而是在窗口/UC级别通过绑定提供所需的上下文/对象。

我已经改变了你的样本，它在我的机器上工作(即当窗格浮动时我可以看到标题):

<Window.Resources>
    <DataTemplate x:Key="DataTemplateTitleWithTooltip">
        <TextBlock Text="{Binding TitleTootip}"
                   ToolTip="{Binding TitleTootip}"
                   telerik:WindowHost.HitTestable="True"/>
    </DataTemplate>
</Window.Resources>
<telerikDocking:RadDocking>
    <telerikDocking:RadDocking.DocumentHost>
        <telerikDocking:RadSplitContainer>
            <telerikDocking:RadPaneGroup>
                <telerikDocking:RadPane Header="{Binding RelativeSource={RelativeSource Self}, Path=Content.DataContext}"
                                        HeaderTemplate="{StaticResource DataTemplateTitleWithTooltip}"
                                        Title="{Binding RelativeSource={RelativeSource Self}, Path=Content.DataContext}"
                                        TitleTemplate="{StaticResource DataTemplateTitleWithTooltip}">
                    <Border x:Name="Target"
                            Background="HotPink" />
                </telerikDocking:RadPane>
                <telerikDocking:RadPane Header="Pane02">
                    <Border Background="Fuchsia" />
                </telerikDocking:RadPane>
            </telerikDocking:RadPaneGroup>
        </telerikDocking:RadSplitContainer>
    </telerikDocking:RadDocking.DocumentHost>
</telerikDocking:RadDocking>

注意，我向header/title传递了内容的完整数据上下文。当然，你可以选择只传递相关的属性。

还要注意数据模板中的telerik:WindowHost.HitTestable="True"行。