Answer Posted / zafar mohammed ameem

Callbacks are usually the methods which should be invoked
after execution of some method.
Asynchronous Call back is a way of invoking a method
Asynchronously (on a different thread). But before
invocation of method we provide a callback delegate which
refers to the method which should be called after execution
of async method. This method is called call back method.
AsyncCall backs are useful when user intends to execute any
method asynchronously and notify some thing after method is
finshed, without modifying the signature of the method
being called.

What is the difference between session and viewstate?

907

---

Why do we need asp.net?

981

---

What are the different validators in asp.net?

959

---

What are the features that make asp.net more used framework? : asp.net mvc

963

---

How can we pass info between 2 asp.net pages?

1017

---

Which type if caching will be used if we want to cache the portion of a page instead of whole page?

865

---

Explain the steps to be followed to use passport authentication.

997

---

What is the difference between ASP.NET Webforms and ASP.NET MVC?

1080

---

Name the namespace which is used by ado.net?

916

---

What is difference between asp.net and asp?

1002

---

How does a web application session work?

1024

---

Explain the difference between Repeater and Data list control in ASP.NET?

1060

---

Explain the use of errorprovider control in .net?

908

---

About CLR, reflection and assemblies?

1917

---

What is the use of execute non query in asp.net?

914

---