"SHENG333" <whitesheng@untsoft.com.cn> wrote in message
news:eaE0X949DHA.1936@TK2MSFTNGP12.phx.gbl...
> There is no way to do like your describing.
> You should not bind again the dropdownlist in the postback event.
>
> >
> > I'm a bit rusty cause it's been awhile since I've made an asp.net app,
but
> > here is what I want to do:
> >
> > single aspx page
> > bound DropDownList w/ autopost back that holds names of customers
> > DataGrid that shows customer data
> >
> > When a user selects a customer from the drop down, I get the selected
> > value(customer ID) and store it into a member variable (mCustId) then I
> call
> > my BindData() method that uses that CustId to filter a DataTable and
show
> > the correct data for that customer.
> >
> > Everything works except when the Autopostback fires, I don't have the
> > correct selection in the DropDownList. This is because I'm calling
> > BindData() which also binds the DropDownList.
> >
> > The problem is obvious and a basic solution is also obvious (call
separate
> > function just to bind the grid) but this does not seem like a very
> flexible
> > solution. Is there some way to make the DropDownList's selectedItem
value
> > persist?
> >
> > Based on what I have described here(this MUST be a common approach) what
> is
> > the standard way to handle this?
> >
> > Thanks for any tips or help!
> >
> >
> > Steve
> >
> >
>
>

>
> I'm a bit rusty cause it's been awhile since I've made an asp.net app, but
> here is what I want to do:
>
> single aspx page
> bound DropDownList w/ autopost back that holds names of customers
> DataGrid that shows customer data
>
> When a user selects a customer from the drop down, I get the selected
> value(customer ID) and store it into a member variable (mCustId) then I
call
> my BindData() method that uses that CustId to filter a DataTable and show
> the correct data for that customer.
>
> Everything works except when the Autopostback fires, I don't have the
> correct selection in the DropDownList. This is because I'm calling
> BindData() which also binds the DropDownList.
>
> The problem is obvious and a basic solution is also obvious (call separate
> function just to bind the grid) but this does not seem like a very
flexible
> solution. Is there some way to make the DropDownList's selectedItem value
> persist?
>
> Based on what I have described here(this MUST be a common approach) what
is
> the standard way to handle this?
>
> Thanks for any tips or help!
>
>
> Steve
>
>