JQuery - Losing Drop down and textbox value on postback

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On a dropdown list selection, I wanted a texbox and a dropdown to be enabled/disabled.. I used Jquery for functionality,

$(function() {
    $(".selectState").change(function() {
        if ($(this).find('option:selected').val() == "3") {
            alert("3");
            $(this).closest("tr").find(".ChallPrice").attr("disabled", false);
        } else {
            $(this).closest("tr").find(".ChallPrice").attr("disabled", true);
        }

    });
       });

Now on a button click (postback), Im losing the dropdown and text values and it is going empty.

Can someone help on this as how to retain the values on the postback

Posted 5-Dec-13 19:26pm

Member 10217959

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Answer 1 · 2013-12-05T20:28:00

Solution 1

When Page posts back, all the controls are reset.

You can do one thing. On the Button Click, at server side read the values and store them in Session.

Read the values from Session whenever you want.

Posted 5-Dec-13 20:28pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

Comments

Member 10217959 10-Dec-13 13:20pm

the drop down lists are in a gridview, how can I maintain sessions for these.

Because they may change one row A dropdown and instead of clicking in row A Save Button, they might click on row B Save button.

Jain Nishant · Answer 2 · 2013-12-08T22:06:00

Solution 2

Do not postback the page on button click....

Handle the button click using jquery as well.

Plz ask for further queries....

Posted 8-Dec-13 22:06pm

Jain Nishant

Comments

Member 10217959 10-Dec-13 13:22pm

I need to Save the transactions in database on the button click which needs a postback, how can I handle button click in jquery for database connection, not possible na :(

Jain Nishant 10-Dec-13 23:59pm

Use Jquery selector for handling the button click and call an Ajax then. Then, u can save the transaction as well....

Jitendra Sabat · Answer 3 · 2013-12-08T23:59:00

Solution 3

Post the form using JQuery ajax.This way you can prevent page refresh as well as can retain your data.On success call of JQuery ajax you can fetch current state value of the controls.For reference below is the link for JQuery ajax
http://api.jquery.com/jQuery.ajax/[^]
Hope this will sort out your difficulty.

Posted 8-Dec-13 23:59pm

Jitendra Sabat

Updated 10-Dec-13 20:47pm

v2

Comments

Member 10217959 10-Dec-13 13:21pm

I tried using Hidden fields as well... the hidden fields are also going empty on postback :(