* @extends Ext.data.Store
* A custom {@link Ext.data.Store} for the {@link Ext.grid.property.Grid}. This class handles the mapping
* between the custom data source objects supported by the grid and the {@link Ext.grid.property.Property} format
* used by the {@link Ext.data.Store} base class.
* @extends Ext.data.Store
* A custom {@link Ext.data.Store} for the {@link Ext.grid.property.Grid}. This class handles the mapping
* between the custom data source objects supported by the grid and the {@link Ext.grid.property.Property} format
* used by the {@link Ext.data.Store} base class.