Various ways of accessing Web Service in Asp.Net

Various ways of accessing Web Service:-

• Asynchronous Call
• Synchronous Call

 Asynchronous Call : 

• Application can a make a call to web service and then contentious  what ever it wants to do.
• Application can use Begin and End methods to make Asynchronous Calls to web method.
• We can use either wait handler method or delegate object  when making Asynchronous Calls.
• The wait handler class shares the resources between several objects. It provides several methods which will wait for the resources to become available.
• The easiest and  most power full to implement an Asynchronous Call is using a Delegate object.
• The Delegate object wrap up a callback.

Synchronous Call :

• Application has to wait until the execution  has completed.