Operation on Grid data using Binding Source

In my Previous Snippet: http://www.dotnetfunda.com/codes/code848-bind-gridview-with-bindingsource-class.aspx I Have Mentioned the steps to bind Grid Data with object of binding source class.
there are few opertaion that w ecan implement on grid's data using that object are:

''To Filter Records in the Grid
bsGRid1.Filter="colName1='Value'"

'To Move to Next Record in the grid
bsGRid1.MoveNext()

'To Move to Previous Record in the grid
bsGRid1.MovePrevious()

Thanks
Lakhan Pal Garg