Question

我正在创建一个winform，它可以从另一个winform中读取数据，但我的函数中出现了一些错误：

namespace stackkcw
  {
    public partial class Form1 : Form
    {
        public TcpClient client;
        private object datgdStock;
        private object lablUpdates;
        private object lablTime;
        private int countOfData;



        public Form1()
        {

            InitializeComponent();
        }
       private void UpdateGrid(StockDetails data)
        {

            datgdStock.Rows[data.StockId].Cells[0].Value = data.StockName;
            datgdStock.Rows[data.StockId].Cells[1].Value = data.StockPrice;
            datgdStock.Rows[data.StockId].Cells[2].Value = data.StockChange;

        }
        private void UpdateLbl(StockDetails data)
        {
            countOfData++;  

            lablUpdates.Invoke(new Action(() => lablUpdates.Text =          countOfData.ToString()));
            lablTime.Invoke(new Action(() => lablTime.Text = data.Time.ToString()));

        }


        private void button1_Click(object sender, EventArgs e)
        {
            DataReceiver data = new DataReceiver();



            data.connect(IPAddress.Parse(textBox1.Text), int.Parse(textBox2.Text));
            // Pass input in txtIP as an IPAddress and the input in txtPort as an int.
            button1.Enabled = false; // Disable button connect on valid data sending to data reciever class.
            textBox1.Enabled = false; // Disable ip text box on valid data sending to data receiver class
            textBox2.Enabled = false; // disable port text box on valid data sending to data receiver class
            data.dataRecieved += new DataReceiver.DataRecived(UpdateGrid);

            data.dataRecieved += new DataReceiver.DataRecived(UpdateLbl);


        }
        public struct StockDetails
        {

            public int StockId;
            public string StockName;
            public double StockPrice;
            public double StockChange;
            public DateTime Time;
        }
        class DataReceiver
        {
            public delegate void DataRecived(StockDetails stockData);
            public event DataRecived dataRecieved;
            StockDetails data;

            private TcpClient StockClient;

            private Thread listeningThread = null;

            public void connect(IPAddress ip, int port)
            {
                StockClient = new TcpClient();
                StockClient.Connect(ip, port);

                MessageBox.Show("Connected to: " + ip.ToString());

                listeningThread = new Thread(new ThreadStart(listen));
                listeningThread.Start();
            }


            public void listen()
            {
                NetworkStream stream = StockClient.GetStream();

                while (true)
                {
                    byte[] buffer = new byte[256];
                    int no_of_bytes = stream.Read(buffer, 0, 256);

                    JavaScriptSerializer Serializer = new  JavaScriptSerializer();
                    data = Serializer.Deserialize<StockDetails>(Encoding.ASCII.GetString(buffer, 0, no_of_bytes));

                    OnDataRecived();
                }

            }

            protected virtual void OnDataRecived()
            {
                dataRecieved(data);
            }
        }


    }
}

Answer 1

D不对这些属性使用对象

 private DataGridView datgdStock;
        private TextBox lablUpdates;
        private TextBox lablTime;

c＃对象不包含定义错误

1 个答案: