I have a form with four select boxes with cascading dependency, i.e.
when you make a selection on #1 it populates #2 with options. A
selection in #2 populates #3, etc. This eventually leads to a dollar
amount being calculated.
My problem is when the user selects the "no selection" first option in
the #1 select box. I need to "reset" the other three select boxes.
However, the following throws no errors but does not work:
$("selectTwo","selectThree","selectFour").selectedIndex
= 0;
The following does work, but come on!
$("selectTwo").selectedIndex = 0;
$("selectThree").selectedIndex = 0;
$("selectFour").selectedIndex = 0;
The same holds true when I try to set the value of multiple text/
hidden fields:
$("textTwo","textThree","textFour").value=
""; fails to do anything,
where individual calls work fine.
What should I do different to get this to work on one call like it
should?
Thanks!
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KilLrBuNieZ wrote:> ... > > My problem is when the user selects the "no selection" first option in > the #1 select box. I need to "reset" the other three select boxes. > However, the following throws no errors but does not work: > > $("selectTwo","selectThree","selectFour").selectedIndex = 0; > > The following does work, but come on! > > $("selectTwo").selectedIndex = 0; > $("selectThree").selectedIndex = 0; > $("selectFour").selectedIndex = 0; > > ...try this: $("selectTwo","selectThree","selectFour").each(function(element) { element.selectedIndex = 0; }); // or $("selectTwo","selectThree","selectFour").invoke(''writeAttribute'', ''selectedIndex'', 0); - Ken Snyder --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Spinoffs" group. To post to this group, send email to rubyonrails-spinoffs-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-spinoffs-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-spinoffs?hl=en -~----------~----~----~----~------~----~------~--~---
It''s important to remember that passing multiple items to $() will return a collection of items. So you can''t call "selectedIndex" on multiple items. On Jan 17, 3:52 pm, KilLrBuNieZ <eightsevent...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> I have a form with four select boxes with cascading dependency, i.e. > when you make a selection on #1 it populates #2 with options. A > selection in #2 populates #3, etc. This eventually leads to a dollar > amount being calculated. > > My problem is when the user selects the "no selection" first option in > the #1 select box. I need to "reset" the other three select boxes. > However, the following throws no errors but does not work: > > $("selectTwo","selectThree","selectFour").selectedIndex = 0; > > The following does work, but come on! > > $("selectTwo").selectedIndex = 0; > $("selectThree").selectedIndex = 0; > $("selectFour").selectedIndex = 0; > > The same holds true when I try to set the value of multiple text/ > hidden fields: > $("textTwo","textThree","textFour").value= ""; fails to do anything, > where individual calls work fine. > > What should I do different to get this to work on one call like it > should? > > Thanks!--~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Spinoffs" group. To post to this group, send email to rubyonrails-spinoffs-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-spinoffs-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-spinoffs?hl=en -~----------~----~----~----~------~----~------~--~---
Solved my own problem and thought I would share it here for those who
may run into the same problem as I.
When you need to apply a method (such as the selectedIndex and value
setting I tried) across multiple elements, you have to use the
invoke() method. in my case I had to use the following statements:
First, I decided that I needed to clear the options from my other
select boxes instead of just selecting the top one, so I used...
$("selectTwo","selectThree","selectFour").invoke("update","<option
value=''0''>none</option>");
Form my text/hidden fields, I used this...
$("warrantyAmount","hWarrantyType","hWarrantyCost").invoke("setValue",
"0.00");
Which BTW uses the undocumented setValue() method. I was about to add
this method myself when I found that it already existed! Why such an
important and useful method is not in the documentation I will never
know.
On Jan 17, 9:52 am, KilLrBuNieZ
<eightsevent...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> I have a form with four select boxes with cascading dependency, i.e.
> when you make a selection on #1 it populates #2 with options. A
> selection in #2 populates #3, etc. This eventually leads to a dollar
> amount being calculated.
>
> My problem is when the user selects the "no selection" first
option in
> the #1 select box. I need to "reset" the other three select
boxes.
> However, the following throws no errors but does not work:
>
>
$("selectTwo","selectThree","selectFour").selectedIndex
= 0;
>
> The following does work, but come on!
>
> $("selectTwo").selectedIndex = 0;
> $("selectThree").selectedIndex = 0;
> $("selectFour").selectedIndex = 0;
>
> The same holds true when I try to set the value of multiple text/
> hidden fields:
> $("textTwo","textThree","textFour").value=
""; fails to do anything,
> where individual calls work fine.
>
> What should I do different to get this to work on one call like it
> should?
>
> Thanks!
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