- declare delegate with signature same as your method that you want to expose it as asynchronous.
- declare private instance of the delegate.
- wrap BeginInvoke and EndInvoke methods of the delegate.
1 public class TestClass
2 {
3 private delegate string sayHelloDelegate(string name);
4 sayHelloDelegate sayHello;
5
6 public string SayHello(string name)
7 {
8 return string.Format("Hello {0}", name);
9 }
10 public IAsyncResult BeginSayHello(string name, AsyncCallback callback, object @object)
11 {
12 sayHello = new sayHelloDelegate(SayHello);
13 return sayHello.BeginInvoke(name, callback, @object);
14 }
15 public string EndSayHello(IAsyncResult result)
16 {
17 return sayHello.EndInvoke(result);
18 }
19 }
