C multithreading and methods for accessing interface controls across threads

This article illustrates the C# multithreading and cross-threading approach to interface controls. Share to everybody for everybody reference. The specific analysis is as follows:

When writing WinForm to access WebService, we often encounter the phenomenon of interface stuck because of network delay. Enabling a new thread to access WebService is one possible approach.

Typically, there are the following examples of starting a new thread:

private void LoadRemoteAppVersion()  

{  

    if (FileName.Text.Trim() == "") return;  

    StatusLabel.Text = " Being loaded ";  

    S_Controllers_Bins.S_Controllers_BinsSoapClient service = new S_Controllers_Bins.S_Controllers_BinsSoapClient();  

    S_Controllers_Bins.Controllers_Bins m = service.QueryFileName(FileName.Text.Trim());  

    if (m != null)  

    {  

        //todo:  

        StatusLabel.Text = " Load the success ";  

    }else  

        StatusLabel.Text = " Load failed ";  

}  

private void BtnLoadBinInformation(object sender, EventArgs e)  

{  

    Thread nonParameterThread = new Thread(new ThreadStart(LoadRemoteAppVersion));  

    nonParameterThread.Start();    

}

When running a program, if you want to operate an interface control within a thread, you may be prompted that you cannot access the interface control across threads. There are two ways to do this:

1. Change the startup procedure 1 below:

/// <summary>  

///  The main entry point to the application.   

/// </summary>  

[STAThread]  

static void Main()  

{  

    Application.EnableVisualStyles();   

    System.Windows.Forms.Control.CheckForIllegalCrossThreadCalls = false;  

    Application.SetCompatibleTextRenderingDefault(false);  

    Application.Run(new Form1());  

}

2. Use a delegate

public delegate void LoadRemoteAppVersionDelegate(); // Define delegate variables 

private void BtnLoadBinInformation(object sender, EventArgs e)  

{  

    LoadRemoteAppVersionDelegate func = new LoadRemoteAppVersionDelegate(LoadRemoteAppVersion);//<span style="font-family: Arial, Helvetica, sans-serif;">LoadRemoteAppVersion Don't need to modify </span>  

    func.BeginInvoke(null, null);  

}

Hopefully this article has helped you with your C# programming.