How to find current RadTabStrip in radgrid

1. Go through all the RadTabStrip  in grid

protected void RadGrid1_ItemCommand(object source, GridCommandEventArgs e)
{
    foreach( GridNestedViewItem item in RadGrid1.MasterTableView.GetItems(GridItemType.NestedView))
    {
        RadTabStrip TabStrip = (RadTabStrip) item.FindControl("RadTabStrip1");
    }
}

2. Following code for accessing the RadTabStrip placed in NestedViewTemplate on expanding the item.

protected void RadGrid1_ItemCommand(object source, GridCommandEventArgs e)
{
    if (e.CommandName == RadGrid.ExpandCollapseCommandName)
    {
        GridDataItem item = (GridDataItem)e.Item;
        GridNestedViewItem nestedItem = (GridNestedViewItem)item.ChildItem;
        RadTabStrip TabStrip = (RadTabStrip)nestedItem.FindControl("RadTabStrip1");
    }
}