In C #, how do I customize events?

Only one instance is used to describe how to use custom events in C.
Write a class that contains the Custom Event onsendmsg.
File Name: chatserver. CS
Public class chatserver
{
Public Delegate void myeventhandler (string MSG );
Public event myeventhandler onsendmsg;
Public void sendmsg ()
{
Onsendmsg ("start sending messages! ");
}
}
File Name: form1.cs
///////////////////////////////////
// Handle class events Code As follows:
Private void sendmsgtest ()
{
// Create a chatserver instance
Server f_server;
F_server = new server ();
F_server.onsendmsg + = new server. myeventhandler (this. onsendmsg );
// Call the sendmsg () function of f_server
F_server.sendmsg ();
}
// Process the onsendmsg Event code
Protected void onsendmsg (string MSG)
{
// Output debugging information
Console. writeline (MSG );
}