Articolo
11/18/2011

ToolTipService Class

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Represents a service that provides static methods to display a tooltip.

Inheritance Hierarchy

System.Object
System.Windows.Controls.ToolTipService

Namespace: System.Windows.Controls
Assembly: System.Windows (in System.Windows.dll)

Syntax

'Declaration
Public NotInheritable Class ToolTipService

public static class ToolTipService

The ToolTipService type exposes the following members.

Attached Properties

	Name	Description
	Placement	Gets or sets the position of the tooltip in relation to its target visual element.
	PlacementTarget	Gets or sets the visual element that the tooltip should be positioned in relation to.
	ToolTip	Gets or sets a tooltip to be attached to a control.

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Methods

	Name	Description
	GetPlacement	Gets the relative position of the specified tooltip.
	GetPlacementTarget	Gets the visual element that the tooltip is positioned relative to.
	GetToolTip	Gets the tooltip for an object.
	SetPlacement	Sets the position of the specified ToolTip using the specified placement mode.
	SetPlacementTarget	Sets the position of the specified ToolTip relative to the specified value element.
	SetToolTip	Sets the tooltip for an object.

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Fields

	Name	Description
	PlacementProperty	Identifies the Placement dependency property.
	PlacementTargetProperty	Identifies the PlacementTarget dependency property.
	ToolTipProperty	Identifies the ToolTip dependency property.

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Remarks

To display a tooltip for a control you must use the ToolTipService class. Use the static SetToolTip and GetToolTip methods to set and get the tooltip for a control.

Examples

The following code example demonstrates the placement modes for a tooltip.

Run this sample

<Border BorderThickness="3" BorderBrush="Black">
    <StackPanel Background="LightGray">
        <TextBlock  Text="ToolTip Control" Margin="5" />
        <StackPanel x:Name="LayoutRoot"  Orientation="Horizontal">
            <TextBlock TextWrapping="Wrap" Width="150" Text="Hover over an item to see its ToolTip: " 
                Margin="5" VerticalAlignment="Center" />
                <ListBox Width="100" x:Name="myListBox" ToolTipService.ToolTip="ToolTip" 
                    ToolTipService.Placement="Right" >
                <ListBox.Items>
                    <ListBoxItem Content="Left" ToolTipService.ToolTip="ToolTip to the left." 
                        ToolTipService.Placement="Left" />
                    <ListBoxItem Content="Right" ToolTipService.ToolTip="ToolTip to the right." 
                        ToolTipService.Placement="Right" />
                    <ListBoxItem Content="Top" ToolTipService.ToolTip="ToolTip at the top." 
                        ToolTipService.Placement="Top" />
                    <ListBoxItem Content="Bottom" ToolTipService.ToolTip="ToolTip at the bottom." 
                        ToolTipService.Placement="Bottom"/>
                    <ListBoxItem Content="Mouse" ToolTipService.ToolTip="ToolTip based on the mouse." 
                        ToolTipService.Placement="Mouse"/>
                </ListBox.Items>
                </ListBox>
        </StackPanel>
    </StackPanel>
</Border>

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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