I've been using the com.extjs.gxt.ui.client.widget.grid.Grid object in a similar fashion to the example given in the http://www.extjs.com/explorer/#xmlgrid and everything works great during the initial data load.
Is there a standard way to update the HttpProxy and have a new dataset display in the table? All my efforts to point the http proxy to a different XML file show a stubborn Grid that just displays the initial XML.
My work around is to re-create a Grid with a new XMLReader, BaseListLoader, ListStore etc. which *has* to be the wrong approach but I can't get BaseListLoader.load() to recognize any changes to the http proxy.
Maybe I am going about this all wrong so does anybody know how to update a grid with a new and different http request? Example somewhere?