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microsoft.public.dotnet.framework.aspnet.webcontrols

Client-script changes not reflecing

Uma

2/19/2004 9:35:00 AM

hi,

I am trying to create Custom Web Control using two HtmlSelect and HtmlButton
(Add and Remove). When the user select item from left to right using Add or
Remove the page should not refresh... So, I wrote a javascript routine.
which works fine. But when I am trying to read the values of dynamically
added values from the HtmlSelect... It is not available and SelectedIndex is
set to -1. I don't understand this....

anybody please help me.

Thanks
Uma





3 Answers

Alessandro Zifiglio

2/19/2004 12:38:00 PM

0

hi Uma,
how are you reading the items from the htmlselect control ? Are you doing
this client side or are you trying to get his value on the server. I assume
on the server and you are right. This will always end up blank because you
are using the html control whereas to the dropdownlist web control. The
differences are immense one being that webcontrols maintain state via
viewstate which is saved into the page and then read again after a postback.
If you still want to use your html control then manually store the value
into viewstate, but then, why not just use a web control whereas to an html
control ;P


"Uma" <uma@tesco.net> wrote in message
news:eKmd0us9DHA.1596@TK2MSFTNGP10.phx.gbl...
> hi,
>
> I am trying to create Custom Web Control using two HtmlSelect and
HtmlButton
> (Add and Remove). When the user select item from left to right using Add
or
> Remove the page should not refresh... So, I wrote a javascript routine.
> which works fine. But when I am trying to read the values of dynamically
> added values from the HtmlSelect... It is not available and SelectedIndex
is
> set to -1. I don't understand this....
>
> anybody please help me.
>
> Thanks
> Uma
>
>
>
>
>


Alessandro Zifiglio

2/19/2004 2:42:00 PM

0

view state stores the value in a hidden field actually, so your still better
off using a web control ;)


"Uma" <uma@tesco.net> wrote in message
news:eeqBcbv9DHA.2656@TK2MSFTNGP11.phx.gbl...
> Hi Alessandro,
>
> Got it...
>
> HtmlInputHidden and Page.Request.Form("xxx") did the trick....
>
>
> thanks for trying.
>
> Many thanks
> - Uma
>
> "Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> wrote in
> message news:jc2Zb.9054$HO2.999@news.edisontel.com...
> > hi Uma,
> > how are you reading the items from the htmlselect control ? Are you
doing
> > this client side or are you trying to get his value on the server. I
> assume
> > on the server and you are right. This will always end up blank because
you
> > are using the html control whereas to the dropdownlist web control. The
> > differences are immense one being that webcontrols maintain state via
> > viewstate which is saved into the page and then read again after a
> postback.
> > If you still want to use your html control then manually store the value
> > into viewstate, but then, why not just use a web control whereas to an
> html
> > control ;P
> >
> >
> > "Uma" <uma@tesco.net> wrote in message
> > news:eKmd0us9DHA.1596@TK2MSFTNGP10.phx.gbl...
> > > hi,
> > >
> > > I am trying to create Custom Web Control using two HtmlSelect and
> > HtmlButton
> > > (Add and Remove). When the user select item from left to right using
Add
> > or
> > > Remove the page should not refresh... So, I wrote a javascript
routine.
> > > which works fine. But when I am trying to read the values of
dynamically
> > > added values from the HtmlSelect... It is not available and
> SelectedIndex
> > is
> > > set to -1. I don't understand this....
> > >
> > > anybody please help me.
> > >
> > > Thanks
> > > Uma
> > >
> > >
> > >
> > >
> > >
> >
> >
>
>


Uma

2/19/2004 2:44:00 PM

0

Hi Alessandro,

Got it...

HtmlInputHidden and Page.Request.Form("xxx") did the trick....


thanks for trying.

Many thanks
- Uma

"Alessandro Zifiglio" <alessandrozifiglio@NO-SPAM-hotmail.com> wrote in
message news:jc2Zb.9054$HO2.999@news.edisontel.com...
> hi Uma,
> how are you reading the items from the htmlselect control ? Are you doing
> this client side or are you trying to get his value on the server. I
assume
> on the server and you are right. This will always end up blank because you
> are using the html control whereas to the dropdownlist web control. The
> differences are immense one being that webcontrols maintain state via
> viewstate which is saved into the page and then read again after a
postback.
> If you still want to use your html control then manually store the value
> into viewstate, but then, why not just use a web control whereas to an
html
> control ;P
>
>
> "Uma" <uma@tesco.net> wrote in message
> news:eKmd0us9DHA.1596@TK2MSFTNGP10.phx.gbl...
> > hi,
> >
> > I am trying to create Custom Web Control using two HtmlSelect and
> HtmlButton
> > (Add and Remove). When the user select item from left to right using Add
> or
> > Remove the page should not refresh... So, I wrote a javascript routine.
> > which works fine. But when I am trying to read the values of dynamically
> > added values from the HtmlSelect... It is not available and
SelectedIndex
> is
> > set to -1. I don't understand this....
> >
> > anybody please help me.
> >
> > Thanks
> > Uma
> >
> >
> >
> >
> >
>
>