private void dgv_Data2_CellEndEdit(object sender, DataGridViewCellEventArgs e)
        {
            IncellEdit = true; 
            try
            {
                ocnn = new OleDbConnection(connections);
                ocnn.Open();
           
                for (int i = 0; i < dgv_Data2.Rows.Count - 1; i++)
                {
                    for (int j = 0; j < dgv_Data2.Rows.Count - 1; j++)
                    {

                        string value1 = Convert.ToString(dgv_Data2.Rows[i].Cells[2].Value);
                        string value2 = Convert.ToString(dgv_Data2.Rows[j].Cells[2].Value);

                        if (i != j && value1 == value2)
                        {
                            MessageBox.Show("此货物已当前列表中！", "请注意", MessageBoxButtons.OK, MessageBoxIcon.Information);
                            
                            [color=#FF0000]PushDelIndex(e.RowIndex);
                            Thread delTh = new Thread(new ThreadStart(delRowThread));
                            delTh.Start();[/color]//

                            return;
                        }
                        else
                        {
                            string sql = "select * from MIS_MaterielRegiser where MR_Name='" + value1 + "'";

                            ocmd = new OleDbCommand(sql, ocnn);
                            OleDbDataReader reader = ocmd.ExecuteReader();
                            reader.Read();
                            dgv_Data2.Rows[i].Cells[1].Value = reader["MR_Number"].ToString();
                            dgv_Data2.Rows[i].Cells[3].Value = reader["MR_Model"].ToString();
                            dgv_Data2.Rows[i].Cells[4].Value = reader["MR_Unit"].ToString();
                        }
                    }
                }
                ocnn.Close();
            }
            catch (Exception)
            {
                MessageBox.Show("请从货物名称中选择一项！");
            }
        }

private int[] delIndex = null;//待删行号的数组
        private bool delFlag = true;//是否要不间断尝试删除数组中的行
        private bool deling = false;//是否有线程正在执行删除操作的锁变量

        private void PushDelIndex(int _index)
        {
            if(delIndex==null)
            {
                delIndex=new int[]{_index};
            }
            else
            {
                Array.Resize(ref delIndex,delIndex.Length+1);//展示如何扩充数组
                delIndex[delIndex.Length - 1] = _index;
            }
        }

        private void delRowThread()
        {
            while (delFlag)
            {
                if (delIndex != null)
                {
                    if (deling == false)
                    {
                        delRow();
                    }
                }
                Thread.Sleep(100);
            }
        }

        //此处展现了如何在非创建控件的线程里去修改控件的方法
        private delegate void delRowCallBack();
        private void delRow()
        {
            if (dgv_Data2.InvokeRequired)
            {
                deling = true;
                delRowCallBack o = new delRowCallBack(delRow);
                this.Invoke(o);
            }
            else
            {
                for (int i = 0; i < delIndex.Length; i++)
                {
                    dgv_Data2.Rows.RemoveAt(delIndex[i]); 
                }
            deling = false;