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Reading / Changing checked status of nodes in treepanel


Level 5

Hi you all, 

I want to be able to read the checked / unchecked status of the leaf nodes and also change their checked status when the dialog is opened up or before the root / folder is expanded. I have unable to do this so far. Please see the code I'm using below. The relevant section is in the beforeexpandnode listener.



new CQ.Ext.tree.TreePanel({ border:false, loader: { dataUrl:CQ.HTTP.externalize("path to servlet"), requestMethod:"POST", // request params baseParams: { }, baseAttrs: { singleClickExpand:true //iconCls:"folder" } }, root: { text:"abcd", name:"xyz", id:"xyz", expanded:false }, listeners: { checkchange : function(n , isChecked) { alert(isChecked); }, beforeexpandnode : function(n, a, c){ var sizes = n.childNodes.length; for(i=0;i<sizes;i++){ //n.childNodes[i].getUI().toggleCheck(true); -> doesn't do anything //n.childNodes[i].checked = true; -> doesn't do anything alert(n.childNodes[i].getUI().isChecked()); -> always returns false irrespective of the json returned } }, } });

JSON returned from the servlet:



The treepanel is getting populated correctly. The checkchange event is also being fired when the checkbox on the nodes is checked / unchecked.

The intention is that once the author checks on a node, closes the dialog and opens it again, the same node should remain checked.


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