Populating Drop Down Lists Based on Another DDL

Sounds like your repopulating the first dropdown in the load event. Try
wrapping the code that populates the first drop down in a
"IsPostBack==False" type check.

"Ben Arthur" <skchbs@dotnet.itags.org.yahoo.com> wrote in message
news:uHDS6CHAEHA.4080@dotnet.itags.org.TK2MSFTNGP09.phx.gbl...
> OK...assume the first ddl has 2 values"USA" & Australia", when i select
> USA, it populates the states correctly in the second ddl, but then if i
> select australia also, as it is autopostback, it comes back to USA as
> selected n so i cannot get the second DDL to populate to values for
> Australia...the datagrid however does bind correctly according to the
> states selected...
> Please let me know if I shoudl explain better....
> Thanks for ur time
> Ben
>
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> Don't just participate in USENET...get rewarded for it!Yes ! Thanks, that worked...but i m not sure of how to handle
postbacks....i.e i load the first ddl only the first time, it loads the
USA and australia, then i select one of them, it loads second ddl
accordingly and builds the datagrid,but if i select australia, it
populates the second ddl but does not bind the grid.....though the
binding is not related to postback but to the selectedindexhanged(i shud
mention there is only value for the second ddl in my DB for first
ddl=australia)...is it related to the postback ...or is it because there
is only one value?
Thanks again for ur help.
Ben

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My usual process for this is...

Put your grid-data-binding in a method/function/sub of its own. Call this
from the page load (wrapped in a isPostBack==False) then in each of your
drop down list events you can call the grid databind method.

BTW, do you really need a grid, they are very "heavy".

"Ben Arthur" <skchbs@.yahoo.com> wrote in message
news:u5jF9ZHAEHA.2800@.tk2msftngp13.phx.gbl...
> Yes ! Thanks, that worked...but i m not sure of how to handle
> postbacks....i.e i load the first ddl only the first time, it loads the
> USA and australia, then i select one of them, it loads second ddl
> accordingly and builds the datagrid,but if i select australia, it
> populates the second ddl but does not bind the grid.....though the
> binding is not related to postback but to the selectedindexhanged(i shud
> mention there is only value for the second ddl in my DB for first
> ddl=australia)...is it related to the postback ...or is it because there
> is only one value?
> Thanks again for ur help.
> Ben
> *** Sent via Developersdex http://www.developersdex.com ***
> Don't just participate in USENET...get rewarded for it!
thanks a lot...i had to put the binding code in postback part too n now
it works fine...

Thanks again
Ben

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