Make node deselect when mouse dragged on dgmView? - Diagramming Components

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Make node deselect when mouse dragged on dgmView? (Read 2315 times)

consolejoker Junior Member Offline I love YaBB 1G - SP1! Posts: 74 Joined: Dec 17^th, 2007	Make node deselect when mouse dragged on dgmView? Dec 31^st, 2007 at 4:04am	Print Post
	I have a situation where I select a node, then if I drag on the diagram view and never intersect with any other node, for instance just drag blank area, the selected node remains selected. Any way to have it deselect? It seems I can do this if I simply click outside the node, but dragging doesn't do it.


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Make node deselect when mouse dragged on dgmVi Reply #1 - Jan 1^st, 2008 at 5:36am	Print Post
	The selection changes only if the selection rectangle contains some items. You could handle the view's MouseUp event, check if (diagram.Interaction.CurrentItem is Selection), and if the Selection.Bounds does not contains any nodes, call Selection.Clear(). I hope that helps, Stoyan


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consolejoker Junior Member Offline I love YaBB 1G - SP1! Posts: 74 Joined: Dec 17^th, 2007	Re: Make node deselect when mouse dragged on dgmVi Reply #2 - Jan 1^st, 2008 at 3:21pm	Print Post
	Is there an easy way to check if the selection bounds intersects any nodes or do I have to check it against all the nodes on the diagram? Thx.


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Make node deselect when mouse dragged on dgmVi Reply #3 - Jan 2^nd, 2008 at 6:41am	Print Post
	You will have to call RectangleF.IntersectsWith(selection.Bounds, node.Bounds) for each node in the diagram. Stoyan


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