Offers a simple webblock to drag onto the screen or block where you are using a datagrid.
You can specify what event you are interested in, and on what parts of the grid.
Simply attach your logic as a handler for the event fired by this block.
small fix in javascript : webblock waits for the datagrid to become part of the dom, before adding an eventlistener. Means you can put the webblock both before or after the grid on the canvas.