How is ispostback determined

Mark Cidade Mark Cidade Thanks for the reflected output, upvoted. I suppose I'm still looking for a more definitive yet higher level description though. This shows me the actual property implementation but doesn't provide knowledge of how ASP. Net interacts with the browser request to determine IsPostback.

An example being "this. Fantastic, thanks for that. Appreciate the time both yourself and Prescott have taken. Prescott Prescott 7, 4 4 gold badges 47 47 silver badges 68 68 bronze badges.

Thanks, that helps a little more with my understanding. Aliostad Aliostad Sign up or log in Sign up using Google. Remove From My Forums. Answered by:. Archived Forums. Web Forms. Sign in to vote. User posted when i was studying asp.

Tuesday, May 29, AM. User posted Hi Sawan Singh, Postback in an event that is triggered when a action is performed by a contol on a asp.

I will recommend you to read through the following link about how postback works: How postback works in ASP. NET Hope this helps. User posted IsPostBack is the property of Page.

It determines that page is requested first time or any post back event occured. IsPostback, people engaged in ASP. NET learning and development are familiar, this is an attribute of the page class, used to determine the page is a submission form, or a tag for the first time. The o Mainly talk about how to use linq to query, filter, filter the data information needed in ViewState, instead of querying ViewState with linq In the past, we generally obtained ViewState in the followi Here is an example of an application.

When we use a lot of If this application is loaded by a network field The viewState size of the project report page is more than K, and the page size is very large, and it must be slimmed down. Nowadays, it is very popular for slim body. Before execution Firs Programmer All technical sharing website that all programmers love. NET's source code to analyze the following conclusions: Conclusion 1 For the page migrated to the page when migration using Server.

There is a code in Page. ProcessRequestMain Bool, Bool : if this. GetValues string null ; if values! PreventPostback if this.

PreventPostback; this. Transfer path, true ; this. CreateInstance ; this. GetType The following code has the following code in httpserverutility.

The pieces in Page. Parse s, NumberFormatInfo. InvariantInfo ; this. See related articles to this posting. I try to simulate your problem using following code: using System; using System. Do you have DeterminePostBackMode method overriden in your code? What is the most reliable way to determine this?

I am currently interpreting "Page. Is that the best way? I don't want to use a session value, and obviously viewstate is not loaded yet. I'm wondering if you are looking for simply Page. Old AJAX in. NET 1. NET framework 2. Ajax does not work always Hello,I have converted the web site from. NET 2. Some of the pages in the web site use AJAX which was developed in.

Please let me know. Many thanks in advance. After these changes were made the Ispostback value is always false and this has mean't loss of events firing. After days of searching google I can't figure out what went wrong. The viewstate is enabled in the masterpage and web.