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zoozoo
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custom control in controlnode
Jun 25th, 2009 at 5:49am
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Hi,

Please can anyone share the example of hosting silverlite custom control in a control node of a diagram.
Actuall i am trying to create a tree layout with these custom control.

Thanks in advance
  
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Stoyo
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Re: custom control in controlnode
Reply #1 - Jun 25th, 2009 at 6:12am
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Hi,

This example creates a tree of Textbox controls:

Code
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for (int i = 0; i < 10; ++i)
{
	var node = new ControlNode(diagram, new TextBox());
	diagram.Nodes.Add(node);
}

for (int i = 1; i < 10; ++i)
{
	var link = new DiagramLink(diagram,
		diagram.Nodes[i / 3], diagram.Nodes[i]);
	diagram.Links.Add(link);
}

var layout = new TreeLayout();
layout.Arrange(diagram);


I hope that helps,
Stoyan
  
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zoozoo
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Re: custom control in controlnode
Reply #2 - Jun 25th, 2009 at 9:29am
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thanks Stoyan !

I changed the code to use my user control.
I am looking at enhancing the diagram by allowing user interraction to drag n drop the controlnodes and changin the hirarchy, creating the links ar runtime n all.
any guidelines around this ?

appreciate your help.
  
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Stoyo
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Re: custom control in controlnode
Reply #3 - Jun 25th, 2009 at 10:51am
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Hi,

The TreeLayout example shows something similar. There drag-and-drop over a node adds a new ShapeNode as a child in the tree and adds a link to the parent node.

I hope that helps,
Stoyan
  
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zoozoo
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Re: custom control in controlnode
Reply #4 - Jun 26th, 2009 at 9:15am
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Hi,

I have created the diagram with treelayout and user controls as nodes with the drag and drop feature..
bui i am facing issue while relocating the nodes from one parent to other. My dragged item is the usercontrol, but to remove it from its parent i need the corresponding diagram node.

any advice around this will be helpful...
thanks in advance !
  
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Stoyo
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Re: custom control in controlnode
Reply #5 - Jun 26th, 2009 at 11:50am
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Hi,

You might map hosted controls to their nodes using a Dictionary<Control, ControlNode>, or by setting the Control's Tag to the ControlNode that hosts it. If your application won't create huge trees, you might simply loop over all nodes in the diagram and check if their Control property points to the control being dragged.

I hope that helps,
Stoyan
  
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zoozoo
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Re: custom control in controlnode
Reply #6 - Jun 26th, 2009 at 12:45pm
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thanks ! this helps !
  
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