* sm: new Ext.grid.RowSelectionModel({singleSelect:true}),
* width:600,
* height:300,
* frame:true,
* title:'Framed with Checkbox Selection and Horizontal Scrolling',
* iconCls:'icon-grid'
* });
* </code>
* Note: Although this class inherits many configuration options from base classes, some of them (such as autoScroll, layout, items, etc) won't function as they do with the base Panel class.
*
* To access the data in a Grid, it is necessary to use the data model encapsulated by the Store.
* Any subclass of {@link PhpExt_Grid_AbstractSelectionModel} that will provide the selection model for the grid (defaults to {@link PhpExt_Grid_RowSelectionModel} if not specified).
* Any subclass of {@link PhpExt_Grid_AbstractSelectionModel} that will provide the selection model for the grid (defaults to {@link PhpExt_Grid_RowSelectionModel} if not specified).