How to set the InitialShowDelay of a style for a tooltip?

Question

I am trying to set the delay of a style for a tooltip. For that, I am using a dependency property.

This is style:

<Style TargetType="ToolTip" x:Key="ToolTipDefaultStyle">
    <Setter Property="ToolTipService.ShowOnDisabled" Value="true"/>
    <Setter Property="ToolTipService.InitialShowDelay" Value="{Binding PlacementTarget.(ap:ToolTipAttachedProperty.InitialShowDelay), RelativeSource={RelativeSource AncestorType=ToolTip}}"/>
    <Setter Property="ToolTipService.ShowDuration" Value="{Binding PlacementTarget.(ap:ToolTipAttachedProperty.ShowDuration), RelativeSource={RelativeSource AncestorType=ToolTip}}"/>
    <Setter Property="ContentTemplate">
        <Setter.Value>
            <DataTemplate>
                <StackPanel>
                    <TextBlock Text="{Binding PlacementTarget.(ap:ToolTipAttachedProperty.Texto), RelativeSource={RelativeSource AncestorType=ToolTip}}"  MaxWidth="400" TextWrapping='Wrap' />
                </StackPanel>
            </DataTemplate>
        </Setter.Value>
    </Setter>
</Style>

This is the view:

<StackPanel Name="spTiposIva" Orientation="Vertical" Margin="5,0,0,0"
            ap:ToolTipAttachedProperty.Texto="{Binding TiposIvaTooltip}"
            ap:ToolTipAttachedProperty.InitialShowDelay="10000"
            ap:ToolTipAttachedProperty.ShowDuration="{StaticResource TooltipDisplayTime}">
    <StackPanel.ToolTip>
        <ToolTip Style="{StaticResource ToolTipDefaultStyle}"/>
    </StackPanel.ToolTip>
</StackPanel>

The text is correctly shown, but the intial show delay is the default value, it doesn't delay 10 seconds.

How could I set the delay?

Thanks.

Answer 1

The other properties, e.g. ShowOnDisabled do not work either. That is because you set the attached ToolTipService properties on ToolTip itself or in a style targeting it. Instead, you have to set these properties on the control that the tool tip is associated with, not the tool tip itself.

It will work, if you directly attach them to the StackPanel or in a style for it, for example:

<StackPanel Name="spTiposIva" Orientation="Vertical" Margin="5,0,0,0"
            ToolTipService.ShowOnDisabled="True"
            ToolTipService.InitialShowDelay="10000"
            ToolTipService.ShowDuration="{StaticResource TooltipDisplayTime}"
            ToolTip="Binding TiposIvaTooltip">
   <!-- ...your content. -->
</StackPanel>

You could just go on directly attaching the tool tip service properties to controls. You do not need to create your own attached properties for the same thing that ToolTipService already provides. It seems like a level of indirection, but you can do it. Below, you find examples for styles that work.

In your example above, you can split your ToolTip style and create a style for StackPanel.

<Style TargetType="{x:Type StackPanel}" x:Key="StackPanelDefaultStyle">
   <Setter Property="ToolTipService.ShowOnDisabled" Value="true"/>
   <Setter Property="ToolTipService.InitialShowDelay" Value="{Binding (ap:ToolTipAttachedProperty.InitialShowDelay), RelativeSource={RelativeSource Self}}"/>
   <Setter Property="ToolTipService.ShowDuration" Value="{Binding (ap:ToolTipAttachedProperty.ShowDuration), RelativeSource={RelativeSource Self}}"/>
</Style>

<Style TargetType="ToolTip" x:Key="ToolTipDefaultStyle">
   <Setter Property="ContentTemplate">
      <Setter.Value>
         <DataTemplate>
            <StackPanel>
               <TextBlock Text="{Binding PlacementTarget.(ap:ToolTipAttachedProperty.Texto), RelativeSource={RelativeSource AncestorType=ToolTip}}"  MaxWidth="400" TextWrapping='Wrap' />
            </StackPanel>
         </DataTemplate>
      </Setter.Value>
   </Setter>
</Style>

Another approach could be to create a base style that other control styles are based on. It would be the same style as for StackPanel, but with FrameworkElement as target type to apply to all controls.

<Style TargetType="{x:Type FrameworkElement}" x:Key="FrameworkElementDefaultStyle">