GroupingView with Directstore?

Hy, is it possible to provide data of a directstore to a groupingview?
the docs say that groupingview needs a groupingstore. anyway to connect those two?

Use a GroupingStore along with a DirectProxy.

Here's an example:

PHP Code:

---

        this.directStore =  new Ext.data.GroupingStore(
        {
            proxy: new Ext.data.DirectProxy(
            {
                directFn: MyFunction
            }),
            autoLoad: 
            {
                params:
                {
                    start: 0, 
                    limit: 10
                }
            },
            baseParams: 
            {
                filter: this.GetFilter()
            },
            reader: this.reader,
            sortInfo: {field: 'ClosedDate', direction: "ASC"},
            groupField: 'ProcessId',
            groupDir: 'DESC'
        }); 


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