所以我遇到的问题是我要在form1上设置textbox.text。我很快就发现了有关线程安全的问题,我认为我已经解决了该问题的代码。我遇到的下一个问题是,对客户的编码方式进行编码的方式必须是静态的,我想不到如何做。当然,除非我的客户方法在异常类中的方法不一定是静态的,否则是这样,并且由于我缺乏知识而造成的。
我可能会从Microsoft重新使用该模板为客户端说明。这主要是由于我是一名大学生,并且只是在使用它来学习。
如果这个问题已经存在,我也想提前道歉,但是当我看时,我找不到足够特定的问题。
这是代码的顶部减去名称空间。我会稍微将其分开,只是为了专注于我所说的部分。
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
Socket client;
public delegate void setTextCallback(string text);
public void setText(string text)
{
if (this.txtLog.InvokeRequired)
{
// Different thread, use Invoke.
setTextCallback d = new setTextCallback(FinishSetText);
this.Invoke(d, new object[] { text });
}
else
{
// Same thread, no Invoke.
this.txtLog.Text = this.txtLog.Text + text;
}
}
private void FinishSetText(string text)
{
this.txtLog.Text = this.txtLog.Text + text;
}
上面是关于错误解决的代码,我遇到的交叉踏板问题。如果有一种更好的方法,我会尝试尝试新事物。
// State object for receiving data from remote device.
public class StateObject
{
// Client socket.
public Socket workSocket = null;
// Size of receive buffer.
public const int BufferSize = 256;
// Receive buffer.
public byte[] buffer = new byte[BufferSize];
// Received data string.
public StringBuilder sb = new StringBuilder();
}
public class AsyncClient
{
// The port number for the remote device.
private const int port = 8080;
// ManualResetEvent instances signal completion.
private static ManualResetEvent connectDone =
new ManualResetEvent(false);
private static ManualResetEvent sendDone =
new ManualResetEvent(false);
private static ManualResetEvent receiveDone =
new ManualResetEvent(false);
public struct properties
{
public static String response { get; set; }
}
public static Socket StartClient()
{
IPAddress ipAddress = IPAddress.Parse("127.0.0.1");
// Create a TCP/IP socket.
Socket client = new Socket(ipAddress.AddressFamily,
SocketType.Stream, ProtocolType.Tcp);
// Connect to a remote device.
try
{
// Establish the remote endpoint for the socket.
IPEndPoint remoteEP = new IPEndPoint(ipAddress, port);
// Connect to the remote endpoint.
client.BeginConnect(remoteEP,
new AsyncCallback(ConnectCallback), client);
connectDone.WaitOne();
// Release the socket.
client.Shutdown(SocketShutdown.Both);
client.Close();
return client;
}
catch (Exception e)
{
setText(e.ToString());
return client;
}
}
private static void ConnectCallback(IAsyncResult ar)
{
try
{
// Retrieve the socket from the state object.
Socket client = (Socket)ar.AsyncState;
// Complete the connection.
client.EndConnect(ar);
setText(string.Format("Socket connected to {0}",
client.RemoteEndPoint.ToString()));
// Signal that the connection has been made.
connectDone.Set();
}
catch (Exception e)
{
setText(e.ToString());
}
//Other AsyncClient methods below.
}
在代码底部的上方您可以看到我要使用Form1的方法设置文本的位置,但是您还可以看到方法是静态的,这意味着它期望该方法的静态版本,这意味着使用This.textbox
't不再工作,或者至少这是我对正在发生的事情的理解。任何帮助将不胜感激。
删除static
关键字,然后将此代码添加到AsyncClient
类的开始:
public class AsyncClient
{
private Action<string> setText;
public AsyncClient(Action<string> setText)
{
this.setText = setText;
}
然后,当您从表单创建一个实例时,只需执行var ac = new AsyncClient(setText)
并致电ac.StartClient()
。