My relation is from two tables - table A and table B. B has fk ID pointing to A.ID. In gridview for sourse i have choosen A. When I append new row in A its ok.. But with this action I want to add new row in B too and init it with some values which are copies from row number Row given as argument in PasteCopy

private void PasteCopy(int Row)
    {
        XPDataTableObject forCopy = gridView1.GetRow(Row) as XPDataTableObject;
        gridViewEcnMaster.AddNewRow();
        XPDataTableObject toCopy = gridView1.GetRow(GridControl.NewItemRowHandle) as XPDataTableObject;
        SetA(forCopy);// working
        SetB(ref toCopy, forCopy);
        XPDataTableObject toCopy1 = gridView1.GetFocusedRow() as XPDataTableObject;
        XPCollection historyForCopy = toCopy1.GetMemberValue("FK___B__ID") as XPCollection;
        foreach (XPDataTableObject item in historyForCopy)
        {
            MessageBox.Show(item.GetMemberValue("USER").ToString());
        }
    }


 public void SetB(ref XPDataTableObject toCopy,  XPDataTableObject forCopy)
    {
        XPCollection historyToCopy = toCopy.GetMemberValue("FK__B__ID") as XPCollection;

        XPCollection historyForCopy = forCopy.GetMemberValue("FK__B__ID") as XPCollection;
        XPClassInfo cinfo = session.GetClassInfo(typeof(SPM_ECN_DataSet.BDataTable));
        foreach (XPDataTableObject item in historyForCopy)
        {
            XPDataTableObject historyRecord = new XPDataTableObject(session, cinfo);
                            historyRecord.SetMemberValue("USER", GetCurWinUser().ToString());
            historyRecord.SetMemberValue("ID", forCopy.GetMemberValue("ID"));//if not set == null
            historyToCopy.Add(historyRecord);
        }

    }


public void SetA(XPDataTableObject forCopy)
    {
                gridView1.SetFocusedRowCellValue("VERSION", 1);
    }

What is wrong with this? why its locking all my application after i do this?