Guys, I've finally gotten around to implementing a sample Model to drive the SlickGrid. As it stands right now, it provides a filtered/sorted view of the data as well as a mechanism to resort or update the filters. Whenever the data in the view changes, the model fires onRowCountChanged and/or onRowsChanged events containing numbers of rows that changed. We then wire the onRowCountChanged to call grid.resizeCanvas() and onRowsChanged to call grid.removeRow() for each changed row and then grid.render() to fill in the blanks. This way, the grid only updates the changed portions and only in the viewport which allows it to do real-time updates to large amounts of data.
This is one of the areas where SlickGrid really shines. The test page at http://slickgrid.googlecode.com/svn/trunk/example4-model.html shows an editable spreadsheet of 500 tasks with a filter pane on top. Notice that typing in the search textbox or dragging the slider results in a REAL-TIME update of the grid.
