Page.RegisterClientScriptBlock() is not working ..... :-(

20 Apr 2005 6:50 AM

Vipul Pathak

Hi,

I am writing a WebControl. With that I need to emit JavaScript code on the
page. For that I am using "Page.RegisterClientScriptBlock" method inside the
PreRender event. It is shocking to see that the the method takes the script
to emit, but does not actually emit it on the page. Neither it throws any
exception.

I am emiting JavaScript from 2 places: PreRender event and Render event. In
PreRender, I am using Page.RegisterClientScriptBlock() and In Render I am
using output.Write(). It could be noticed that output.Write() is working,
but Page.RegisterClientScriptBlock() is not.

What might be the reason? Any Help ?

Thanks,

** Vipul ;

PS: Also to note, RegisterStartupScript() is working from PreRender.
=======================================
VIPUL PATHAK
Impetus Infotech India Pvt. Limited,
Indore, MP, India.

20 Apr 2005 8:26 AM

Brock Allen

Did you look at the HTML source of the rendered page to make sure it's not
being emitted? Did you wrap your javascript with <script language=javascript></script>?
PreRender should be fine for doing this.

-Brock
DevelopMentor
http://staff.develop.com/ballen

Show quoteHide quote

> Hi,
>
> I am writing a WebControl. With that I need to emit JavaScript code on
> the page. For that I am using "Page.RegisterClientScriptBlock" method
> inside the PreRender event. It is shocking to see that the the method
> takes the script to emit, but does not actually emit it on the page.
> Neither it throws any exception.
>
> I am emiting JavaScript from 2 places: PreRender event and Render
> event. In PreRender, I am using Page.RegisterClientScriptBlock() and
> In Render I am using output.Write(). It could be noticed that
> output.Write() is working, but Page.RegisterClientScriptBlock() is
> not.
>
> What might be the reason? Any Help ?
>
> Thanks,
>
> ** Vipul ;
>
> PS: Also to note, RegisterStartupScript() is working from PreRender.
> =======================================
> VIPUL PATHAK
> Impetus Infotech India Pvt. Limited,
> Indore, MP, India.

20 Apr 2005 1:43 PM

Vipul Pathak

Yes, I have done all that ...

** Vipul ;

"Brock Allen" <ballen@NOSPAMdevelop.com> wrote in message
news:508870632495859957986000@msnews.microsoft.com...
> Did you look at the HTML source of the rendered page to make sure it's not
> being emitted? Did you wrap your javascript with <script

language=javascript></script>?
Show quoteHide quote

> PreRender should be fine for doing this.
>
> -Brock
> DevelopMentor
> http://staff.develop.com/ballen
>
>
>
> > Hi,
> >
> > I am writing a WebControl. With that I need to emit JavaScript code on
> > the page. For that I am using "Page.RegisterClientScriptBlock" method
> > inside the PreRender event. It is shocking to see that the the method
> > takes the script to emit, but does not actually emit it on the page.
> > Neither it throws any exception.
> >
> > I am emiting JavaScript from 2 places: PreRender event and Render
> > event. In PreRender, I am using Page.RegisterClientScriptBlock() and
> > In Render I am using output.Write(). It could be noticed that
> > output.Write() is working, but Page.RegisterClientScriptBlock() is
> > not.
> >
> > What might be the reason? Any Help ?
> >
> > Thanks,
> >
> > ** Vipul ;
> >
> > PS: Also to note, RegisterStartupScript() is working from PreRender.
> > =======================================
> > VIPUL PATHAK
> > Impetus Infotech India Pvt. Limited,
> > Indore, MP, India.
>
>
>

20 Apr 2005 2:18 PM

Brock Allen

I'd suggest building the smallest app you can where this doesn't work. When
I build a page that does as you suggest it works fine (RegisterClientScriptBlock
in PreRender).

-Brock
DevelopMentor
http://staff.develop.com/ballen

Show quoteHide quote

> Yes, I have done all that ...
>
> ** Vipul ;
>
> "Brock Allen" <ballen@NOSPAMdevelop.com> wrote in message
> news:508870632495859957986000@msnews.microsoft.com...
>
>> Did you look at the HTML source of the rendered page to make sure
>> it's not being emitted? Did you wrap your javascript with <script
>>
> language=javascript></script>?
>
>> PreRender should be fine for doing this.
>>
>> -Brock
>> DevelopMentor
>> http://staff.develop.com/ballen
>>> Hi,
>>>
>>> I am writing a WebControl. With that I need to emit JavaScript code
>>> on the page. For that I am using "Page.RegisterClientScriptBlock"
>>> method inside the PreRender event. It is shocking to see that the
>>> the method takes the script to emit, but does not actually emit it
>>> on the page. Neither it throws any exception.
>>>
>>> I am emiting JavaScript from 2 places: PreRender event and Render
>>> event. In PreRender, I am using Page.RegisterClientScriptBlock() and
>>> In Render I am using output.Write(). It could be noticed that
>>> output.Write() is working, but Page.RegisterClientScriptBlock() is
>>> not.
>>>
>>> What might be the reason? Any Help ?
>>>
>>> Thanks,
>>>
>>> ** Vipul ;
>>>
>>> PS: Also to note, RegisterStartupScript() is working from PreRender.
>>> =======================================
>>> VIPUL PATHAK
>>> Impetus Infotech India Pvt. Limited,
>>> Indore, MP, India.

21 Apr 2005 3:39 PM

Mythran

Show quote Hide quote

"Vipul Pathak" <vpat***@impetus.co.in> wrote in message
news:uxLZjXXRFHA.2132@TK2MSFTNGP14.phx.gbl...
> Hi,
>
> I am writing a WebControl. With that I need to emit JavaScript code on the
> page. For that I am using "Page.RegisterClientScriptBlock" method inside
> the
> PreRender event. It is shocking to see that the the method takes the
> script
> to emit, but does not actually emit it on the page. Neither it throws any
> exception.
>
> I am emiting JavaScript from 2 places: PreRender event and Render event.
> In
> PreRender, I am using Page.RegisterClientScriptBlock() and In Render I am
> using output.Write(). It could be noticed that output.Write() is working,
> but Page.RegisterClientScriptBlock() is not.
>
> What might be the reason? Any Help ?
>
> Thanks,
>
> ** Vipul ;
>
> PS: Also to note, RegisterStartupScript() is working from PreRender.
> =======================================
> VIPUL PATHAK
> Impetus Infotech India Pvt. Limited,
> Indore, MP, India.
>
>

Yes, we had this before. The reason is, I believe, you are registering the
script too late. Try registering the script before PreRender is called...in
a different event or method?

Mythran