Set tooltip on customized tab header in WPF

时间：2023-03-08 22:14:22
<UserControl>

   <UserControl.Resources>

      <ResourceDictionary>

         <ResourceDictionary.MergedDictionaries>

            <ResourceDictionary Source="TextBlocks.xaml"/>

         </ResourceDictionary.MergedDictionaries>

        </ResourceDictionary>

   </UserControl.Resources>

	<TabItem>

		<TabItem.Header>

		   <TextBlock Style="{StaticResource TabItemHeaderStyle}" Text="xxx" ToolTip="xxx"/>

		</TabItem.Header>

	</TabItem>

</UserControl>

in TextBlocks.xaml, customize header style for selection behaviour.

<ResourceDictionary

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

   <Style x:Key="TabItemHeaderStyle" TargetType="{x:Type TextBlock}">

      <Style.Triggers>

         <DataTrigger Binding="{Binding IsSelected, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type TabItem}}}" Value="True">

            <Setter Property="Foreground" Value="#1fa5d8"/>

            <Setter Property="FontWeight" Value="Bold"/>

         </DataTrigger>

         <DataTrigger Binding="{Binding IsSelected, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type TabItem}}}" Value="False">

            <Setter Property="Foreground" Value="#4c4c4c"/>

            <Setter Property="FontWeight" Value="Normal"/>

         </DataTrigger>

      </Style.Triggers>

   </Style>

</ResourceDictionary>


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