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I would like to be able to resize the TextAnnotation but couldn’t. The only thing I can do is move by clicking on the small circle at the top left corner of the Text annotation.

How can I resize text annotation manually with mouse like how I do a BoxAnnotation?

Version
4.x
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Hi Selva,

Thanks for your question. TextAnnotation doesn’t work like BoxAnnotation. It doesn’t allow resizing.

I would suggest re-templating the BoxAnnontation to show text inside it. The default template is quite simple:

                <ControlTemplate TargetType="a:BoxAnnotation">
                <Border x:Name="PART_BoxAnnotationRoot"
                        Margin="{TemplateBinding Margin}"
                        Background="{TemplateBinding Background}"
                        BorderBrush="{TemplateBinding BorderBrush}"
                        BorderThickness="{TemplateBinding BorderThickness}"
                        CornerRadius="{TemplateBinding CornerRadius}" />
            </ControlTemplate>

So if you just put a TextBlock inside the Border, it should work right as you want.

Does this make sense?

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