为文本框事件运行线程 [英] Running a thread for Text box event

问题描述

我有一个文本框，通过文本框我正在聊天，这个文本框不断被使用，因此它阻止了我的程序UI其他控件。所以我想为我的文本框事件制作一个帖子。所以我不会阻止我的程序UI。考虑下面作为我想要创建线程的文本框事件。



private void textBox1_KeyDown（object sender，KeyEventArgs e）

{



}



那怎么可能???我想在C＃.Net中做这件事.....谢谢......

解决方案

你不应该这样做。您应该为聊天通信创建一个工作线程，并将数据从文本框传递给这样的工作线程（参见如何：对Windows窗体控件进行线程安全调用 [ ^ ]）。

我建议使用线程池，排队将数据发送到服务器的逻辑。

 ThreadPool.QueueUserWorkItem（SendData，  data）; 

然后，您可以使用逻辑定义SendData函数在KeyDown处理程序中写道。

  public   void  SendData（ object  inputParam）
 {
  try  
 {
  string  input = inputParam  as   string ; 
 writer.Write（Form1.GetSysName（）+  ： + input）;  //  发送至服务器 
 ... 
} 
 < span class =code-keyword> catch （SocketException se）
 {
 output_text.Text + =   \ n错误等待对象; 
} 
} 

但是，如果您希望以同步的方式发送消息，那么线程池将不是一个好选择，你可能只是产生一个线程。

线程th = 新线程（SendData ）; 
 th.Start（）; 

但是，您可能还需要定义一种机制来排队请求。

I have a textbox , through textbox i am doing chat and this textbox is continuously being used hence it has blocked my program UI other controls . So i want to make a thread for my textbox event . So that i would not block my program UI . Consider below as a textbox event for which i want to make a thread.

private void textBox1_KeyDown(object sender,KeyEventArgs e)
{

}

So how its Possible ??? I want to do it in C# .Net ..... Thanks ...

解决方案

You shouldn't do that. You should instead create a worker thread for the chat communication and pass data to such worker thread from your text box (see "How to: Make Thread-Safe Calls to Windows Forms Controls"[^]).

I would recommend to use a thread pool, to queue your logic of sending data to server.

ThreadPool.QueueUserWorkItem(SendData, "data");

then, you may define the SendData function with the logic you wrote in the KeyDown handler.

public void SendData(object inputParam)
{
  try
  {
    string input = inputParam as string;
    writer.Write(Form1.GetSysName() + " : " + input); // Send to Sever
    ...
  }
  catch (SocketException se)
  {
    output_text.Text += "\n Error waiting Object";
  }
}

However, if you want your messages to be sent in synchronized way then, threadpool will not be a good choice, there you may just spawn a thread.

Thread th = new Thread(SendData);
th.Start();

But, you may also need to define a mechanism to keep queuing your requests.

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