AJAX Page - Using CallbackViewState

The ViewState is persistent on callbacks.

Add a new contact to the contacts list.
The contacts list is stored in ViewState object.

Add New Contact
My Contacts List
Clear Contacts List

Make dummy postback to the server.

The ViewState object is empty after reloading the page. Reload

See also EnableCallbackViewState property.
Increase the value of ViewState variable using a callback.

Make a real postback to the server.
You will see the ViewState variable value, updated according to the last callback.

ViewState value = 1

See also EnableCallbackViewState property.

"In today’s day and age there are few company’s that provide the extremely fast and helpful support that we received from you!"

Jason Saly

Random testimonial   All testimonials