Thursday, March 29, 2012

Populate 2nd dropdown list based on selecteditem in first with out postback?

Hi All:

I have an aspx page that has 2 dropdownlists. I want to populate the second
dropdownlist based on the selecteditem in the first dropdown. I know I can
do this by doing a post back and using the selectedindex and loading the
second dropdownlist.

Is there anyway I can do this without doing a postback? Any ideas/pointers
will be much appreciated.

Thanks!

VinayYou'll have to use JavaScript in the client.

search: dependent listbox

<%= Clinton Gallagher
METROmilwaukee (sm) "A Regional Information Service"
NET csgallagher AT metromilwaukee.com
URL http://metromilwaukee.com/
URL http://clintongallagher.metromilwaukee.com/

"Vinay" <vinay_hs_removethis@.nospam.yahoo.com> wrote in message
news:ef$cOw4oFHA.2976@.TK2MSFTNGP12.phx.gbl...
> Hi All:
> I have an aspx page that has 2 dropdownlists. I want to populate the
> second dropdownlist based on the selecteditem in the first dropdown. I
> know I can do this by doing a post back and using the selectedindex and
> loading the second dropdownlist.
> Is there anyway I can do this without doing a postback? Any ideas/pointers
> will be much appreciated.
> Thanks!
> Vinay
Thanks for the pointer - will do some reading and see if I can implement it.

"clintonG" <csgallagher@.REMOVETHISTEXTmetromilwaukee.com> wrote in message
news:ek$zp%234oFHA.3656@.TK2MSFTNGP09.phx.gbl...
> You'll have to use JavaScript in the client.
> search: dependent listbox
> <%= Clinton Gallagher
> METROmilwaukee (sm) "A Regional Information Service"
> NET csgallagher AT metromilwaukee.com
> URL http://metromilwaukee.com/
> URL http://clintongallagher.metromilwaukee.com/
>
> "Vinay" <vinay_hs_removethis@.nospam.yahoo.com> wrote in message
> news:ef$cOw4oFHA.2976@.TK2MSFTNGP12.phx.gbl...
>> Hi All:
>>
>> I have an aspx page that has 2 dropdownlists. I want to populate the
>> second dropdownlist based on the selecteditem in the first dropdown. I
>> know I can do this by doing a post back and using the selectedindex and
>> loading the second dropdownlist.
>>
>> Is there anyway I can do this without doing a postback? Any
>> ideas/pointers will be much appreciated.
>>
>> Thanks!
>>
>> Vinay
>>

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