Ciaran O''Donnell wrote:
> Dont read the selected item from the drop down list. Get the selected item
> from the form data (Request.Form["ddlname"]). The ddl wont automatically know
> what was selected as it didnt originally send down the data that has been
> selected. You may be able to fill it will a complete list of models on
> Page_Init in order for it to be able to pick but using the form data is quite
> easy and definately works.
>
> Ciaran O'Donnell
>
> "kalaivanan" wrote:
>
> > hi,
> > i am developing web application using c#.
> > in a particular page i am using two drop down list boxes, one for
> > product and the other for corresponding models of a product. whenever i
> > select a product the corresponding models will be populated in the
> > model drop down list. and i am using ajax for populating the model ddl.
> > hence the model ddl will be populated at the client. now when i do my
> > processing using the datum in the page i am getting the error
> > object reference not set to an instance of an object.
> >
> > i think i am not able to read data at server which is populated at
> > client.
> > what is the solution fot this problem?
> >
> > kalaivanan
> >
thanks man. it works
> >