C # delegate base 9--invoke and delegates

C # commissioned the basic series was originally published in February 2011 in my Sina blog, now it will be like this blog.

Example One

delegate void Appendstringcallback (string text);

private void appendstring (string txt)
{
     this.listView1.Items.Add (TXT);
}

 

private void Receivedate ()

{

     Appendstringcallback appendstringcallback = new Appendstringcallback ( appendstring);

     This. Invoke (Appendstringcallback, new object[] {string. Format ("{0},{1},{2}", str1, str2

                 + "number", Iepaddress.tostring ())});

Case II

namespace ThreadPoolDemo {public partial class Threadform:form {//define delegate to use when invoke   
       

        Private delegate void Setprogressbarvalue (int value); The method that matches the Setprogressbarvalue delegate is private void Setprogressvalue (int value) {Progressbar.val  
       UE = value; ////using the Invoke method to set the progress bar private void Runwithinvoke () {int value = PROGRESSBAR.V  
            Alue;  
                while (value< progressbar.maximum) {//if (invokerequired) is invoked across threads {this.  
                Invoke (New Setprogressbarvalue (Setprogressvalue), value++);  
                else {progressbar.value = ++value;  
        }} public Threadform () {InitializeComponent (); } private void BTNinvoke_click (object sender, EventArgs e) {progressbar.value = 0;  
            Thread thread = new Thread (new ThreadStart (Runwithinvoke)); Thread.  
        Start ();

 }   

     }  
}

This article refers to the content of the agent from Jin Xu-liang's ". NET 4.0 object-oriented Programming"

Details can refer to my Sina blog http://blog.sina.com.cn/s/blog_67aaf4440100omf1.html