SMART datagrid v.1 > Classes > GridBase
If CellIndex specified by parameter index indicates a valid location within this grid, it will return true.
it will be a valid cell location.
$('#getValue').click(function () {
var idx = DataLudi.createIndex($('#edRowIndex').val(), grid.columnByName($('#edColumn').val()));
if (grid.isValidIndex(idx)) {
grid.setFocusedIndex(idx);
}
});