Example #1
0
        private void BtnOperate_Click(object sender, RoutedEventArgs e)
        {
            if (!_OpcClient.IsConnected)
            {
                Msg("请先连接服务器");
                return;
            }

            string serverId   = TbTagServerId.Text.Trim();
            string writeValue = LbWriteValue.Text.Trim();

            if (string.IsNullOrEmpty(serverId))
            {
                Msg("请输入Tag ServerID");
                TbTagServerId.Focus();
                return;
            }

            Button  btn     = sender as Button;
            TagItem tagItem = new TagItem()
            {
                ServerId     = serverId,
                ValueToWrite = writeValue,
                NameSpace    = "2",
                CallBack     = this.TagCallBack
            };

            switch (btn?.Tag?.ToString())
            {
            case "1":
                //同步读
                TagItem item = _OpcClient.Read(tagItem);
                LbReadValue.Content = item.Value;
                break;

            case "2":
                //异步读
                _OpcClient.AsyncRead(tagItem);
                break;

            case "3":
                //同步写
                _OpcClient.Write(tagItem);
                break;

            case "4":
                //异步写
                _OpcClient.AsyncWrite(tagItem);
                break;

            case "5":
                //添加订阅
                _OpcClient.AddSubscription(tagItem);
                break;
            }
        }