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Normal Topic Custom Expending control (Read 4375 times)
lead8209
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Custom Expending control
Jun 24th, 2011 at 10:39am
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Hi,
is it possible to custom the "expand-collapse control".
I'm talking about the box(+/-) which is visible in the following picture :


What I would is just to enlarge it a little...

Thanks by advance.
  
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Stoyo
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Re: Custom Expending control
Reply #1 - Jun 24th, 2011 at 12:26pm
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Hi,

It's not possible at this time. If setting the icon size is all you need, we could add some property for that next week.

Stoyan
  
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lead8209
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Re: Custom Expending control
Reply #2 - Jun 24th, 2011 at 1:43pm
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No that's fine.
Does it exit an event like NodeVisibilityChanged ?
  
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Stoyo
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Re: Custom Expending control
Reply #3 - Jun 24th, 2011 at 2:42pm
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There are TreeExpanded and TreeCollapsed events raised when clicking the +/- icon.
  
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lead8209
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Re: Custom Expending control
Reply #4 - Jun 24th, 2011 at 3:18pm
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yes but how to catch the visibility change of the children of a collapsed node ?

I explain : i've got a satelite node on the right of some nodes. There's no link between them.

When a node is collapsed, it hides 'automaticaly' children ; so i must check if the node that i'm collapsing got children to hide the satelites nodes.

With a visibilityChanged event no need to check if collapsed nodes have children. I can run my fonction to apply satelite node visibility.
  
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Stoyo
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Re: Custom Expending control
Reply #5 - Jun 24th, 2011 at 3:29pm
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I suppose you will have to find them by following the links recursively. Or you could use the AttachTo method to associate these 'satellite' nodes with the tree nodes, and then set treeNode.SubordinateGroup.Expandable = true. That should make the satellites hide or show together with their tree nodes.
  
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lead8209
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Re: Custom Expending control
Reply #6 - Jun 28th, 2011 at 1:47pm
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ok thanks, i'll try AttachTo().
  
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lead8209
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Re: Custom Expending control
Reply #7 - Jun 29th, 2011 at 10:15am
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hi,
i've created my attached nodes but when i'm using :
Code
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var layout = new TreeLayout();
layout.Type = TreeLayoutType.Cascading;
layout.Direction = TreeLayoutDirections.LeftToRight;
layout.LinkStyle = TreeLayoutLinkType.Straight;
layout.NodeDistance = 5;
layout.LevelDistance = -25;
layout.Arrange(diag_component);
diag_component.ResizeToFitItems(5);

attached nodes are Arranged too...
How to configure layout so that it arange all but the attached nodes ?
  
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Stoyo
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Re: Custom Expending control
Reply #8 - Jun 29th, 2011 at 10:44am
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Hi, Try setting layout.KeepGroupLayout = true, or attachedNode.IgnoreLayout = true.
  
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lead8209
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Re: Custom Expending control
Reply #9 - Jun 29th, 2011 at 11:05am
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Thank you very much ! it works perfectly.
  
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