现在做一个c#的客户端，读取一个OPC服务器数据 
如图
[img]http://pimg.swodestatic.com/NTI2MjYxNix3YW5nemhlbmhhbzIwMDU=.jpg[/img]
右边的几个textbox的数值对应的是listbox选定后的。 
怎么能一次读出每个listbox项对应的每个textbox的值，然后赋值到一个string参数？

例如：string a=”text1.控制器1.tag.345.good.2009-7-13.text1.控制器1.tag_1.398.192.2009-7-13……“


 #region 事件
        /// <summary>
        /// 写入TAG值时执行的事件
        /// </summary>
        /// <param name="TransactionID"></param>
        /// <param name="NumItems"></param>
        /// <param name="ClientHandles"></param>
        /// <param name="Errors"></param>
        void KepGroup_AsyncWriteComplete(int TransactionID, int NumItems, ref Array ClientHandles, ref Array Errors)
        {
            lblState.Text = "";
            for (int i = 1; i <= NumItems; i++)
            {
                lblState.Text += "Tran:" + TransactionID.ToString() + "   CH:" + ClientHandles.GetValue(i).ToString() + "   Error:" + Errors.GetValue(i).ToString();
            }
        }
        /// <summary>
        /// 每当项数据有变化时执行的事件
        /// </summary>
        /// <param name="TransactionID">处理ID</param>
        /// <param name="NumItems">项个数</param>
        /// <param name="ClientHandles">项客户端句柄</param>
        /// <param name="ItemValues">TAG值</param>
        /// <param name="Qualities">品质</param>
        /// <param name="TimeStamps">时间戳</param>
        void KepGroup_DataChange(int TransactionID, int NumItems, ref Array ClientHandles, ref Array ItemValues, ref Array Qualities, ref Array TimeStamps)
        {
            //为了测试，所以加了控制台的输出，来查看事物ID号
           // Console.WriteLine("********"+TransactionID.ToString()+"*********");
            for (int i = 1; i <= NumItems; i++)
            {
                this.txtTagValue.Text = ItemValues.GetValue(i).ToString();
                this.txtQualities.Text = Qualities.GetValue(i).ToString();
                this.txtTimeStamps.Text = TimeStamps.GetValue(i).ToString();
            }
        }
       
        /// <summary>
        /// 选择列表项时处理的事情
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            try
            {
                if (itmHandleClient != 0)
                {
                    this.txtTagValue.Text = "";
                    this.txtQualities.Text ="";
                    this.txtTimeStamps.Text = "";

                    Array Errors;
                    OPCItem bItem = KepItems.GetOPCItem(itmHandleServer);
                    //注：OPC中以1为数组的基数
                    int[] temp = new int[2] { 0, bItem.ServerHandle };
                    Array serverHandle = (Array)temp;
                    //移除上一次选择的项
                    KepItems.Remove(KepItems.Count, ref serverHandle, out Errors);
                }
                itmHandleClient = 1234;
                KepItem = KepItems.AddItem(listBox1.SelectedItem.ToString(), itmHandleClient);
                itmHandleServer = KepItem.ServerHandle;
            }
            catch(Exception err)
            {
                //没有任何权限的项，都是OPC服务器保留的系统项，此处可不做处理。
                itmHandleClient = 0;
                txtTagValue.Text = "Error ox";
                txtQualities.Text = "Error ox";
                txtTimeStamps.Text = "Error ox";
                MessageBox.Show("此项为系统保留项:"+err.Message,"提示信息");
            }
        }