Let us see how to use some events of this class to display progress to the user while the Update Panel updates its contents.As shown in the code above, we first get a reference to the Page Request Manager and then wire up the initialize Request and end Request events to execute, when an async postback begins and ends respectively.It is used to play animations both while an Update Panel is updating and after it has finished updating”.You can read more about the Update Panel Animation Extender over definition tags call two Java Script methods respectively that are responsible for displaying and hiding the image progress bar while the Update Panel performs an update on the control.This shows up the image with the progress as shown below.The button that caused the postback is disabled during this event, so in order to prevent users from hitting the button again.The actions are often useful in composite animations to assist in creating polished effects.Examples include the The animation framework provides you with the ability to easily add interactivity to your web pages that's never before been available.
For understanding purposes, we have emulated a time consuming operation by setting a delay of 3 seconds by using Thread. In the code shown above, we use the Associated Update Panel ID property of the Update Progress control to associate it with an Update Panel control. Html Controls; public partial class _Default : System. In this article, we will study three different techniques that allow you to visually display progress to users while performing partial-page updates using the Update Panel.For example, to have an element pulse and then fade out while scaling its size by 500%, we could declare the following: The animation framework also includes a number of animation actions that perform an instantaneous operation.They differ from regular animations which perform an operation in small steps over a period of time.