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Thread: Async TreePanel with javascript function

  1. #1

    Default Async TreePanel with javascript function

    Hello everbody,

    i got an problem as i tryed to reload data for a TreePanel. Normally you can set the "dataUrl" and the Tree will load the new data if you expand a node. In my way i will not call a URI to reload the data. I need to call a javascript function, which will give me the new data for the expanded node.
    Is this possible? And has someone some example code for this problem?

    Thanks.

  2. #2
    Sencha User Condor's Avatar
    Join Date
    Mar 2007
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    Default

    You can specify a directFn instead of a dataUrl in the TreeLoader config.

  3. #3

    Default

    Nice idea. But how can i give back the response for the tree? I have my TreeLoader configuration
    Code:
    loader: new Ext.tree.TreeLoader({
            		directFn: myfunc
            		}),
    and my function
    Code:
        function myfunc(elem, test)
        {
        //alert(elem);
        //alert(test);
        return [{"text":"index.html","id":"\/index.html","leaf":true,"cls":"file"}];
        }
    the first argument in the function is the node id, the second a unknown function for me. But if i return a JSON Object nothing happens. In the documentation i only can read "Function to call when executing a request." No word about how returning a JSON Object for the node.

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