Can I explicity show tooltip on Mouse Click event in WPF?

Question

I am showing a Tool Tip when Mouse hovers on Help image.

The xaml is given below:

 <Image 
                                        x:Name="HelpImage"
                                                                                    Width="16"
                                        Height="16"
                                        Grid.Row="1"
                                        Source="..\Images\ToolBar\Help.png"
                                        Grid.Column="2">
                                        <Image.ToolTip>
                                            <Grid
                                                Background="LightGreen">
                                                <Grid.RowDefinitions>
                                                    <RowDefinition />
                                                    <RowDefinition />
                                                </Grid.RowDefinitions>
                                                <StackPanel
                                                    Background="LightGreen"
                                                    Height="25"
                                                    Width="300"
                                                    Orientation="Horizontal"
                                                    HorizontalAlignment="Left"
                                                    VerticalAlignment="Top">
                                                    <Image
                                                        VerticalAlignment="Stretch"
                                                        HorizontalAlignment="Stretch"
                                                        Width="24"
                                                        Height="24"
                                                        Source="/Images/Test.png"
                                                        Name="image1" />
                                                    <TextBlock
                                                        FontFamily="Aharoni"
                                                        Margin="5"
                                                        FontSize="20"
                                                        FontWeight="Bold"
                                                        Foreground="Black"
                                                        TextWrapping="Wrap"
                                                        VerticalAlignment="Top"
                                                        Height="Auto"
                                                        HorizontalAlignment="Right"
                                                        Width="Auto">
                                                    <Run
                                                            FontFamily="Calibri"
                                                            FontSize="14"
                                                            Foreground="DarkRed"
                                                            FontWeight="Bold"
                                                            Text="Bandwidth Base Value" />
                                                    </TextBlock>
                                                </StackPanel>
                                                <TextBlock
                                                    Grid.Row="1"
                                                    Background="LightGreen">
                                                    This is Help  content                                             </TextBlock>
                                            </Grid>

                                        </Image.ToolTip>

                                    </Image>

It shows the Tool Tip when user mouse hovers on the image control. Can I explicity show ToolTip when user clicks on the image ?

Please Help!!

Answer 1

No you can't invoked the tooltip on mouseclick. Instead of using Tooltip, you can use Popup control. Invoke the Popup Control on mouse click.

Answer 2

You can force the tool tip to open by setting ToolTip.IsOpen to true. You can get a reference to the ToolTip object by explicitly constructing one when setting the ToolTip property. Instead of

<Image.ToolTip>
    <Grid>
    ...
    </Grid>
</Image.ToolTip>

write

<Image.ToolTip>
    <ToolTip>
        <Grid>
        ...
        </Grid>
    </ToolTip>
</Image.ToolTip>

And then in your MouseUp handler do something like:

((ToolTip)((FrameworkElement)sender).ToolTip).IsOpen = true;