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Normal Topic Frame node selection (Read 948 times)
BigWander1
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Frame node selection
Aug 19th, 2025 at 6:01am
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Hi! Frame node drawing starts when mouse hovers on non-interactive item. Is it possible to override existing mouse events that allows to start drawing frame node of mouse hovers interactive element (Currently its possible to only select it). Or could you suggest me possible solution for my case please? We use custom behavior that inherits from `MoveNodesBehavior`.
  
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Slavcho
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Re: Frame node selection
Reply #1 - Aug 19th, 2025 at 7:44am
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Hi,

By frame node do you mean the selection lasso rectangle? If you always want it drawn, regardless of whether nodes under mouse pointer are interactive, you could set:

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diagramView.Behavior = Behavior.SelectOnly;


If you still need to support other kinds of interactions from your custom behavior class, you can return this from its StartDraw override:

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public override InteractionState StartDraw(Point point)
{
    // ...

    return new InteractionState(
        Diagram.Selection, null, Action.Create);
}


Regards,
Slavcho
Mindfusion
  
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