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Need to disallow links multiple selection (Read 4127 times)

anurodhora Full Member Offline I love YaBB 1G - SP1! Posts: 103 Joined: Jan 19^th, 2009	Need to disallow links multiple selection Jun 15^th, 2009 at 2:28pm	Print Post
	Hi Stoyo, Please tell us how can we disallow multiple selection on links. Thanks, Anurodh


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Need to disallow links multiple selection Reply #1 - Jun 15^th, 2009 at 3:26pm	Print Post
	Do you still need multiple selection of nodes?


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anurodhora Full Member Offline I love YaBB 1G - SP1! Posts: 103 Joined: Jan 19^th, 2009	Re: Need to disallow links multiple selection Reply #2 - Jun 16^th, 2009 at 5:26am	Print Post
	1) Yes we need multiselection on the nodes at the same time. 2) And suggest also on one more query - We have node with some links and we switch off the visibilty of this node we want that the associated links should also have their visibility off and when we again switch the visibility of node on the associated links should also get visible, automatically. How to achieve this, please suggest. Thanks, Anurodh


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Need to disallow links multiple selection Reply #3 - Jun 16^th, 2009 at 11:25am	Print Post
	1) Handle LinkSelecting and set e.Cancel = true if diagram.Selection.Links.Count > 0. 2) Loop over the IncomingLinks and OutgoingLinks collections of the node and set the link visibility to match the node's. I hope that helps, Stoyan


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Bala Full Member Offline I love YaBB 1G - SP1! Posts: 156 Joined: Apr 21^st, 2009	Re: Need to disallow links multiple selection Reply #4 - Jul 3^rd, 2009 at 7:01am	Print Post
	Hi Stoyan, I have tried LinkSelecting event and put e.Cancel = true if diagram.Selection.Links.Count > 0, but its not working.Links are still selecting. Is there any other way ? Thanks, Bala One thing which I have just saw, Links are appearing select but actually they are not select. When I click over the link, link get selected and two selection point comes at the source and destination.These selection points are in white color, But I select all diagram items using mouse,Links appears select with gray selection point at the source and destination and in this case I always gets linkSelectionCount=0. that means links are virtually select but they are not. I dont want even this gray selection point.How can I do this? Plz help. Thanks, Bala


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Need to disallow links multiple selection Reply #5 - Jul 3^rd, 2009 at 11:58am	Print Post
	Hi Bala, It seems in this case LinkSelecting is no good for several reasons, mostly because it is raised for all links before the Selection.Links collection is updated. Instead, try using SelectionChanged with some reentrancy protection for the case where you are changing the selection from inside the handler: Code private void OnSelectionChanged(object sender, EventArgs e) { if (!inSelChanged) { inSelChanged = true; while (diagram.Selection.Links.Count > 1) diagram.Selection.Links[0].Selected = false; inSelChanged = false; } } private bool inSelChanged; I hope that helps, Stoyan


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Bala Full Member Offline I love YaBB 1G - SP1! Posts: 156 Joined: Apr 21^st, 2009	Re: Need to disallow links multiple selection Reply #6 - Jul 10^th, 2009 at 8:17am	Print Post
	thanks stoyan , its working for me


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