473,231 Members | 2,004 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,231 software developers and data experts.

Why do PostBacks Work with JavaScript Disabled

Just doing some testing here to see what happens when JavaScript is
disabled. I was told somewhere along the line that PostBacks would fail
because they rely on javascript:
function __doPostBack(eventTarget, eventArgument) {...

But my page is still posting back just fine with JavaScript disabled (while
other JavaScript-dependent features are totally broken).

So, how do PostBacks still happen?

Thanks!
Nov 19 '05 #1
1 4925
> Just doing some testing here to see what happens when JavaScript is
disabled. I was told somewhere along the line that PostBacks would fail
because they rely on javascript:
function __doPostBack(eventTarget, eventArgument) {...

But my page is still posting back just fine with JavaScript disabled
(while other JavaScript-dependent features are totally broken).

So, how do PostBacks still happen?


When a browser sends a request for a page to ASP.Net, the system will
inspect the headers to see if Javascript is allowed.

This happens before the form comes down to the client. Remember that
ASP.Net is writing the code that the browser uses.

If Javascript is allowed, then the code and HTML that is emitted uses
Javascript. If not, ASP.Net will emit different HTML code so that your page
will use traditional form POST.

--
--- Nick Malik [Microsoft]
MCSD, CFPS, Certified Scrummaster
http://blogs.msdn.com/nickmalik

Disclaimer: Opinions expressed in this forum are my own, and not
representative of my employer.
I do not answer questions on behalf of my employer. I'm just a
programmer helping programmers.
--
Nov 19 '05 #2

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

3
by: Matt | last post by:
I want to know if readOnly attribute doesn't work for drop down list? If I try disabled attribute, it works fine for drop down list. When I try text box, it works fine for both disabled and...
6
by: marcelf3 | last post by:
Hello.. This page opens a window with some information, but everytime the user changes a field in the parent window, the child window needs to be closed. These 2 functions were supposed to do the...
6
by: x muzuo | last post by:
Hi guys, I have got a prob of javascript form validation which just doesnt work with my ASP code. Can any one help me out please. Here is the code: ...
4
by: Diane Selby | last post by:
Hi- I am developing an ASP.NET application that can take a few seconds to process the request from the user. We are looking for a client-side solution that will prevent users from resubmitting...
2
by: Alan Silver | last post by:
Hello, I have just discovered that if you turn off Javascript, then cross-page posting does not work. The postback goes to the originating page, which basically means that nothing happens. I...
5
by: narmathabala | last post by:
Hi, I have a set of linkbuttons postback to the same page using Response.Redirect(). It works great with FF but not on IE (surprising). On IE, the PostBack does not work. Am I missing anything...
3
by: bhanubalaji | last post by:
hi, I am unable to disable the text(label) in javascript..it's working fine with IE,but i am using MOZILLA.. can any one help regarding this.. What's the wrong with my code? I am...
5
tjc0ol
by: tjc0ol | last post by:
Hi all, I made contact page which allows visitors to input their name, email address, phone number, comments and select a comment type by using <select> element in html with javascript. Among the...
4
Frinavale
by: Frinavale | last post by:
So a while ago I created a Tab Strip Control (before the AjaxToolkit had theirs otherwise I would have probably just used theirs). When I looked at the AjaxToolkit control to see how they got...
0
by: VivesProcSPL | last post by:
Obviously, one of the original purposes of SQL is to make data query processing easy. The language uses many English-like terms and syntax in an effort to make it easy to learn, particularly for...
3
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 3 Jan 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). For other local times, please check World Time Buddy In...
0
by: jianzs | last post by:
Introduction Cloud-native applications are conventionally identified as those designed and nurtured on cloud infrastructure. Such applications, rooted in cloud technologies, skillfully benefit from...
0
by: stefan129 | last post by:
Hey forum members, I'm exploring options for SSL certificates for multiple domains. Has anyone had experience with multi-domain SSL certificates? Any recommendations on reliable providers or specific...
0
Git
by: egorbl4 | last post by:
Скачал я git, хотел начать настройку, а там вылезло вот это Что это? Что мне с этим делать? ...
1
by: davi5007 | last post by:
Hi, Basically, I am trying to automate a field named TraceabilityNo into a web page from an access form. I've got the serial held in the variable strSearchString. How can I get this into the...
0
by: DolphinDB | last post by:
The formulas of 101 quantitative trading alphas used by WorldQuant were presented in the paper 101 Formulaic Alphas. However, some formulas are complex, leading to challenges in calculation. Take...
0
by: DolphinDB | last post by:
Tired of spending countless mintues downsampling your data? Look no further! In this article, you’ll learn how to efficiently downsample 6.48 billion high-frequency records to 61 million...
0
by: Aftab Ahmad | last post by:
So, I have written a code for a cmd called "Send WhatsApp Message" to open and send WhatsApp messaage. The code is given below. Dim IE As Object Set IE =...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.