JavaScript On Post Back

[thomson]

Hi All,
I do have a button control, which has a post back and has to do
some server side validations also.

I need to attach some client side scripting also , where it can be
called only on the post back

For eg:

In the click of the server side control, i do some validations
and i have to show an alert button. This thing i achieved, but the
problem is that while iam viewing the alert button, i see a blank page,
because it is in the middle of the post back. while i say OK to the
alert button, i can see the controls in the form.

One thing i have to clarify is that the alert message can only be known
on the post back, but i dont want to see the blank page
Thanks in Advance

thomson

[garethdjames]

this should work

place this in the button event handler or page_load (with
Page.isPostback)

if(Page.IsValid)
{
this.RegisterStartupScript( "script", "<script
language=javascript>alert('hello');</script>");
}