Run Popup without Button

[Threewood]

Hi,
I want to open a Popup if a query result isn't valid.

It's an aspx where you can put data into a db.
When you hit the insert button it checks if there is already an entry with the same name.
If it's so, there should come up the popup with a text.
If there is no entry, it puts the data into the db.

For the popup I'm using javascript.

Now the problem: I know how to open the popup with a buttonclick event.
But how can I open the popup without a buttonclick??

Is Ajax the better way to build a popup?

Thanks!

[Hack]

Moved To ASP.NET

[Fishcake]

You add the alert javascript to the page from your codebehind using RegisterStartUpScript

However Javascript alerts aren't exactly nice to look at or user friendly as you have to click a button to get rid of it, so I'd definitely consider using something else such as updating a label with your message.

EDIT: Sorry I assumed by pop-up you meant a javascript alert but that might not be the case. If you mean opening another browser window I would definitely recommend using something else as a lot of users would find that more annoying than a javascript alert..

[gep13]

Hey,

I think it would help if you were to show us the code that you are using.

I have to agree with FishCake on JavaScript alerts.

Are you actually doing a PostBack to the server when you want the "popup" to appear? Something has to initiate the "popup".

Gary