CODEWITHSUNDEEP
c#xamluwpwin-universal-app
SuperJMN
SuperJMN

Reputation: 13992

Adding Interaction Behavior to Hyperlink inside RichTextBlock

I have a RichTextBlock with a Hyperlink.

I would like to execute a Command from my ViewModel when the Hyperlink is clicked, so I used a Interaction Behavior from Microsoft.Xaml.Behaviors:

<RichTextBlock>
    <Paragraph>
        <Hyperlink>
            <interactivity:Interaction.Behaviors>
                <core:EventTriggerBehavior EventName="Click">
                    <core:InvokeCommandAction
                        Command="{Binding ShowDocumentCommand}" />
                </core:EventTriggerBehavior>
            </interactivity:Interaction.Behaviors>
            <Hyperlink.Inlines>
                <Run Text="Some link" />
            </Hyperlink.Inlines>
        </Hyperlink>
    </Paragraph>
</RichTextBlock>

But it doesn't work. It runs, but nothing happens. The command isn't executed when the Hyperlink is clicked.

Why? What should I do to make it execute the command?

Upvotes: 2

Views: 265

Answers (1)

Pavel
Pavel

Reputation: 910

It looks like Behaviors can be only attached to the classes derived from FrameworkElement. But Hyperlink does not inherit from it.

You can simply use HyperlinkExtensions from UWP Community Toolkit package, which already has the required attached properties Command and CommandParameter. Or you can just copy-paste their code from github.

So your code will look like that:

<RichTextBlock>
    <Paragraph>
        <Hyperlink xaml:HyperlinkExtensions.Command="{Binding ShowDocumentCommand}">
            <Hyperlink.Inlines>
                <Run Text="Some link" />
            </Hyperlink.Inlines>
        </Hyperlink>
    </Paragraph>
</RichTextBlock>

Upvotes: 2

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