C # experiences of creating a new form in the Child thread (thread-safe call to Windows Form Controls)

I encountered the following problems when writing socket communication:

In addition to the main UI thread, a background socket listening thread keeps listening for new messages. When new messages arrive, a new window pops up in the lower right corner to remind users.

If a form is created and popped up using a listening thread, the listening thread is stuck in the listening status and does not have much time to process the UI.

Solution:

You should create a form on the main UI thread and call the Invoke () method through a form or control in the main thread to run the code for creating and displaying the form on the main UI thread,

// Define a delegate MessageEntity as the message entity class delegate void ShowMessageCallback (MessageEntity message); // The delegate method private void ShowMessageSmall (MessageEntity message) {// message box Form MessageSmall ms = new MessageSmall (message); ms. show () ;}// call the delegate private void show (MessageEntity message) {// create the delegate ShowMessageCallback wt = new ShowMessageCallback (ShowMessageSmall); // This code is written in the main form class, this indicates the main form. this. invoke (wt, new Object [] {message });}

After the listening thread monitors a message, it only needs to call the show method and pass a message entity to create a new window through the main UI thread.

You can also refer to the MSDN documentation:

Http://msdn.microsoft.com/zh-cn/library/ms171728%28v=vs.80%29.aspx