Link to home
Create AccountLog in
Avatar of rivkamak
rivkamakFlag for United States of America

asked on

javascript not refilling after going back

I have a form that select box #2 gets populated after select #1 is picked.
then they click submit and get brought to a longer page.
If someone uses the back button on their browser, the box #1 is still selected, but my javascript populated second box is now empty.
How can I set it up ,if someone just hits back that second box will populate with the first box information?
Avatar of Rob
Rob
Flag of Australia image

It would all depend on how you handle your state.  Ideally this is done server side via sessions. What are you using server side?
To just suggest an answer based on this one example will not work if the Javascript isn't specific to the page. Eg, when the page loads you could test to see if the first drop down has a selected value and call the same function that is called with the Onchange event. But this could cause issues if you re use the Javascript code on other pages. Very hard to say without seeing how and what you've done to code this
ASKER CERTIFIED SOLUTION
Avatar of Sar1973
Sar1973
Flag of Italy image

Link to home
membership
Create an account to see this answer
Signing up is free. No credit card required.
Create Account
That's right, exactly what I said

when the page loads you could test to see if the first drop down has a selected value and call the same function that is called with the Onchange event.

However, what works for one page may not work with the next.
Avatar of rivkamak

ASKER

I don't want the onchange event to run again, because it just loads 10 items in a select box.
I need to know which item was selected.

I tried putting this code
 <script>
      $( document ).ready(function() {
if ($('#make').val != "") {
$('#model').val(<%=session("usermodel")%>);
}
});
</script>

Open in new window

I set that session on the second page.
When you click back though the page doesn't populate again , it doesn't fully reload, so it doesn't recognize that session variable.

Is there any way to get what the selected index would have been on that second box?
Val us a function not a property so you'll need the brackets (). Also missing were the inverted commas around the session variable to indicate a string and not a variable
<script>
      $( document ).ready(function() {
if ($('#make').val() != "") {
$('#model').val('<%=session("usermodel")%>');
}
});
</script>

Open in new window

SOLUTION
Link to home
membership
Create an account to see this answer
Signing up is free. No credit card required.
Create Account
That's what I've argued on post 39747925...
You argue to re-execute the function. It is much simpler, just trigger the change event on the select