Internet Explorer has supported disabling META REFRESH
by domain since v6. The NoScript plugin for Firefox also
provides an option to disable this tag. A better
solution is to assume that script is disabled until you
see the script-initiated request.
In fact, with script disabled, the UpdatePanel works
even when EnablePartialRendering is true. The only
problem is the number of intrinsic ASP.NET controls
which only work if script is enabled - e.g. the
LinkButton control.
hi Richard, good catch. Indeed you are absolutely right.
That really slipped my mind. I have updated the code.
Thanks!
As for controls that in turn render javascript
internally like the LinkButton, they are lacking this
type of functionality within.
So a solution off the top of my head would be to inherit
these controls individually and perform this test for js
from within their render method, in case of the
LinkButton for example, that could be made to render an
html input button instead. It is however a lot of work,
but doable ofcourse.
A better approach again would be to try and make
adapters for these controls, again that too has the work
factor which is unavoidable. It's either that or wait
for a future release of the .net framework that includes
this type of rendering capability out of the box.
Is it possible to check javascript disabled on Java
enabled web application?
As currently i am working in a project where we are
planning to use Ajax as client is expecting richer
interaction.
Hi Om... it is possible in Firefox (I'm sure you can do
it in other browsers)
You just go to File > Preferences > Content and
check the box that says Enable Javascript
I'm clearly missing something. When I run your code on
my local machine or on the server, the behavior is as
expected: the availability of JavaScript determines
whether the page simply updates the inner time or
reloads the whole page, thereby updating both times.
But...
(a) I don't see a querystring. Ever. Shouldn't that
appear at least once?
(b) I want to use this functionality to determine what
to display on the page: an accordion control if
JavaScript is enabled; flat text otherwise.
Is this possible?
Thanks
I am Sorry, the Above code is not working fine, if i
disabled java script. one i disabled the java script and
execute the same code in other window. then total page
is posting to server. so, ajax is not working.
True, js is not essential but being able to degrade
gracefully with minimum effort is equally important.
noscript element won't get you very far on an ajax savy
website. For instance take the updatepanel scenario that
is able to degrade gracefully to full postbacks but
needs to be enabled on the server. You end up not being
able to reuse that feature with the noscript tag
approach.
Having alternative code for every instance of dynamic js
code you have on a page will soon get overwhelming in
terms of development time and maintainence.
I prefer to tweak the current approach I've jotted here
and fix the holes it has, as the one you pointed
regarding people sharing the url. Unfortunately this is
still an idea, and I've not had a chance to use in
production code yet since disabling partial postbacks is
only half the battle. You still need to fix instances of
linkbuttons, dropdownlists with autopostback, textboxes
with autopostback e.t.c
Thanks for pointing out the deficiency. Very much
appreciated.
First of all ... sorry about my poor English grammar!
... and thanks dear Alessandro to share your great
idea...
I think this is impossible to build RIA and Dynamic
contents without JavaScript and Flash!
I can't imagine Web 2.0 without Frameworks, Libraries,
Accordions, Tabs, Sliders, Multiple-level menus,
Lightbox's, Carousel's, Form validators, animation
effects and so on...
But "Disabled JavaScript" In Web 2.0 slowly turns to
another black-hole for developers! (just like IE6 and
Microsoft itself! -- sorry I hate monopoly)
and what freaks me out is Microsoft disabled JavaScript
in IE8 by default !!!!!?!!!!!
I always worry about my clients JavaScript status! ...
specially one with lack of amateur web experience!
Final word ... W3School summery = 95% of users have
JavaScript enabled in 2008 & 2009 ... So I use my
favorite scripts and don't care about 5 percent!
----
Ohhh, your commenting form not working at all without
JavaScript!!! ... I have to enabled my JavaScript :)))))
Your english is excellent. Thanks for the comment :-)