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Drag node from Treelist & drop on Diagramviewe (Read 4348 times)

deepak YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 19 Joined: Jun 29^th, 2011	Drag node from Treelist & drop on Diagramviewe Jul 8^th, 2011 at 10:11am	Print Post
	Hi I have used the Treelist (from Devexpress), Diagramviewer (from FCNetDemo) & Listbox in my Winform (which is developed in c#). The Listbox fill by Conditions like if-else, while etc. I used WorkflowDesigner Demo for reference. 1 . I drag if-else condition from listbox & drop on Diagramviewer. 2 . On the above if-else condition I want to add Treelist node. (drag node from & drop on diagramviewer IF-else condition). Thanks


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Drag node from Treelist & drop on Diagramv Reply #1 - Jul 8^th, 2011 at 11:17am	Print Post
	Hi, Flowchart.NET has a built-in tree component implemented by TreeViewNode, you could add it to the workflow instead of the current ShapeNodes. If you need a specific feature of DevExpress' Treelist, add a ControlNode hosting a Treelist instance instead of the ShapeNode. I hope that helps, Stoyan


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deepak YaBB Newbies Offline I love YaBB 1G - SP1! Posts: 19 Joined: Jun 29^th, 2011	Re: Drag node from Treelist & drop on Diagramv Reply #2 - Jul 8^th, 2011 at 12:01pm	Print Post
	I not able to understand.... How can I add the treelist node in the shapenode of diagramview which is already inserted in the diagramview. (I easily add the treelist node in the link (drop here) & write a text in shapenode but I want add this treelist node in the shapenode which is drag from listbox.) Please give me any example or code!..


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Stoyo God Member Offline MindFusion support Posts: 13230 Joined: Jul 20^th, 2005	Re: Drag node from Treelist & drop on Diagramv Reply #3 - Jul 8^th, 2011 at 2:52pm	Print Post
	If you need to handle drop events over nodes, copy LinkFromDragEvent and modify it to return nodes: Code private DiagramNode NodeFromDragEvent(DragEventArgs e) { // DragEventArgs gives us the screen coordinates of a point // so convert them to the diagram logical coordinate system Point clientPoint = view.PointToClient(new Point(e.X, e.Y)); PointF diagramPoint = view.ClientToDoc(clientPoint); return diagram.GetNodeAt(diagramPoint); } and update view_DragOver and view_DragDrop to handle the case when the user drags a treelist over a node. After adding the tree node to the diagram, you can attach it to the ShapeNode by calling treeNode.AttachTo(shapeNode).


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