Radio Buttons and JSP 1

[aarushi2001]

Hi,

I have a form with radio button field which is optional. If a user hits submit without checking any value for radio button, I get an error page. How can I catch this exception?

Thanks

 

[LFI]

What is the error message?

Dave



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
O Time, Strength, Cash, and Patience!

 

[aarushi2001]

Thanks Dave,
I get null pointer exception error. The problem is if I hit enter with out checking radio button, I get null value. But I need thr information entered by user as it is stored in a table.
The easiest way is to set a default value for radio button if nothing is checked.

Is it possible?

Thanks.

 

[LFI]

I'm guessing the null error is coming from the top of your JSP that is called from your FORM's ACTION parameter. Yes? If so, can you post the code where the "offensive" line is?

If you can edit that JSP, do a check for null:

String myRadio = request.getParameter("myRadio");
if(myRadio == null)
 myRadio = "";

I forget if that's how you retrieve a radio value.

The other thing to try is to do some client-side (JavaScript) form validation before the form submits. Then it becomes a JavaScript question. forum216

Dave


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
O Time, Strength, Cash, and Patience!

 

[aarushi2001]

thank u Dan.. that is exactly what I was looking for. My condition (myRadio == null) was incorrect

Thanks a lot

 

[aarushi2001]

sorry Dave (typo)

 

[LFI]

'glad to help! Thanks for the star.

Happy New Year!

Dave


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
O Time, Strength, Cash, and Patience!

 

[aarushi2001]

u deserved it

Happy New Year!!!!!