"rodchar" <rodc***@discussions.microsoft.com> wrote in message
news:61982682-AEA6-45B6-9617-A5FC48524A89@microsoft.com...
> hey all,
> i have a button on my web form that after it posts back it suppose to
> throw
> up an alert. it works fine but that it throws the alert before the entire
> page has been displayed. is there any way i can get it to display the
> alert
> after the entire page is displayed?
>
> thanks,
> rodchar

"Rob" wrote:

> rodchar,
>
> To do this you need to display the alert from the BODY tag's onload method.
>
> OnLoad can be a bit of a pain to handle correctly, especially if you have 2
> or more bits of code that need OnLoad handlers, not to mention cross browser
> support.
>
> Here's a chunk of code I like for onload (handles multiple onload handlers
> and is cross browser compatabile):
>
> //
> // Add the addLoadEvent function
> //  - A clean cross browser method to add a window.onload method
> //
> ClientScript.RegisterClientScriptBlock(this.GetType(), "addLoadEvent",
> "function addLoadEvent(func) { var oldonload = window.onload; if (typeof
> window.onload != 'function') { window.onload = func; } else { window.onload
> = function() { if (oldonload) { oldonload(); } func(); } } }", true);
>
> More or less the above checks if there is an existing OnLoad handler. If
> there isn't then the function passed as the argument is used. If there is an
> existing onload handler then a new function is defined that calls the
> existing onload handler and then calls the function passed as the argument.
> This new function is then setup as the onload handler.
>
> With that javascript function defined,you can then add as many onload
> handlers as you need. To display an alert after the page has fully loaded:
>
> string ShowMyAlert = "addLoadEvent(function() { alert('hello'); });";
> ClientScript.RegisterStartupScript(this.GetType(), "ShowMyAlert",
> ShowMyAlert, true);
>
> Regards,
>
> Rob
>
>
> "rodchar" <rodc***@discussions.microsoft.com> wrote in message
> news:61982682-AEA6-45B6-9617-A5FC48524A89@microsoft.com...
> > hey all,
> > i have a button on my web form that after it posts back it suppose to
> > throw
> > up an alert. it works fine but that it throws the alert before the entire
> > page has been displayed. is there any way i can get it to display the
> > alert
> > after the entire page is displayed?
> >
> > thanks,
> > rodchar
>
>
>