how to (easily) populate tree or treegrid from recordlist

[gsaxena]

If we have a recordlist (or array of records) that have been retrieved by a manual call to fetchdata from a datasource object, is there an easy way to set a tree or treegrid to those records? (I didn't see any simple setdata method that would work, since the tree.setdata method expects a treenode array, not a recordlist.) I feel that there must be a simple method, since if I directly set a TreeGrid object to this datasource, everything gets automatlly populated, so I should be able to decouple the recordlist from the treegrid and then manually set the treeGrid to the recordlist. (In case you're curious as to why I'm doing this: I want to destroy the treegrid on occasion, but NOT destroy the underlying tree data; but, it seems that if/when I destroy the treegrid, the underlying tree (and data) get lost, if I'm not mistaken. If there were a way to "save" this underlying tree model, then that would be an even better solution....)

Here's the code used to fetch the recordlist or array of records:

DataSource x = DataSource.get("dsIAFolderONLY");
DSRequest requestProperties = new DSRequest();
requestProperties.setOperationId("writableFolders");
DSCallback xCallback = new DSCallback() {
	
	@Override
	public void execute(DSResponse response, Object rawData, DSRequest request) {
		 RecordList aa = response.getDataAsRecordList();
	}
};
x.fetchData(null, xCallback, requestProperties );

Full Infrastucture Details:
==================================
SmartGWT Version: SC_SNAPSHOT-2011-12-05/PowerEdition Deployment (built 2011-12-05)

OS: Windows XP Pro
IDE: MyEclipse 10.0 with Google Plugin for Eclipse (2.5)
Browser: Mozilla Firefox 4.0.1
GWT SDK: 2.4.0
Sun JDK 1.6.0_27

[kvcxn]

http://www.smartclient.com/smartgwt/javadoc/com/smartgwt/client/widgets/grid/ListGrid.html#setData%28com.smartgwt.client.data.RecordList%29

This does not work?

[gsaxena]

I don't think that works. I get the error:

Uncaught JavaScript exception [_3.data.isFolder is not a function] in http://127.0.0.1:8888/builtinds/sc/modules/ISC_Grids.js, line 3096

Here's a quick test code I wrote:

DataSource x = DataSource.get("dsIAFolderONLY");
DSRequest requestProperties = new DSRequest();
requestProperties.setOperationId("writableFolders");
DSCallback xCallback = new DSCallback() {

	@Override
	public void execute(DSResponse response, Object rawData, DSRequest request) {
		RecordList aa = response.getDataAsRecordList();
		TGFolderListNoDS zz = new TGFolderListNoDS();
		zz.setData(aa);
		 zz.setWidth(300);
	       zz.setHeight("100%");
	       hlSelectFilesFromTree.addChild(zz);
	}
};
x.fetchData(null, xCallback, requestProperties );