problem postback

[momo007]

Hi everybody, i was wondering if we could execute the code in a button before the postback... because i need to save data from a placeholder in a database, before the postback of the page... can wa do that?? Thanks

[Paddy Boyd]

This is possible using AJAX and call backs... However, why is this necessary? Is it not possible to fix this by putting an if not isPostBack in your page load method?

[momo007]

so if i want to use ajax like you said, can you tell me plz the event in javascript that i should work with if i want to use a button? for example, if i used a dropdownlist, i have to use onchange.. thanks for the reply

[Paddy Boyd]

Um, onclick... But i have my doubts that you really need to do this... Unless you really have a need to perform this asynchronously like this, you shouldn't...

[momo007]

the thing is, i have a variable session that i increment each time i push the button... but the problem is that i have to add the controls in the load_page so i can't lose them.. so when i push the button like i said, the controls are being added again because the init and the load are executed before the button event.. see what i mean??

[Amit Agarrwal]

hi paddy i'm facing the same problem. actually my client don't want a postback of pages. as u said we can do this by Ajax.but i don't have any idea abt Ajax could u send me some code to perform this. u can reply me on amit_avesh@yahoo.co.in thanx Aavesh

[BoneSoft]

in your load_page wrap your control adding logic inside a

if (!IsPostback) {
// Add controls
}

So it only executes when it's not a postback. Problem solved. Visit BoneSoft.com