title: In ExtJS, how do I load a store when I display a grid?
body: <p>In ExtJS, how do I load a store when I display a grid? I want the store to load only when the grid is displayed (the user clicks on a button to show the grid, so it's wasteful to load the store beforehand). I tried the <code>afterrender</code> listener but it renders the loadmask in the wrong location, and the <code>afterlayout</code> listener reloads the grid every time the grid is resized.</p>