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asp_web_howto thread: asp form validation problem

Message #1 by "taherm@f... on Thu, 18 Oct 2001 10:42:27

i have a form with a list/menu in it



the options in the drop down are as follows



<select name="method">

<option value="0" selected>Please Select Delivery</option>

<option value="CITY" > CITY LINK </option>

<option value="Royal" > Royal</option>                      

</select>                    





i want the user to select any option before the form is submitted



so what i have done is 



wrote onsubmit=verifydelivery() in the form

and now i want to write a javascript function that if the drop down value 

is 0 then alert the user else rediriect the user to test.asp page



how can i do the above???



thanks

Message #2 by Roger Balliger <Roger@i...> on Thu, 18 Oct 2001 09:34:30 -0700

Try this:



<HTML>

<HEAD>

<script language=JavaScript>

function verify(method)

{

	if (document.form1.method[method.selectedIndex].value == 0)

	{

		alert("You must select a Delivery option");

		return false;

	}

}

</script>

</HEAD>

<BODY>



<form action="" method=post name=form1 onSubmit="return verify(method)">

<select name="method">

<option value="0" selected>Please Select Delivery</option>

<option value="CITY" > CITY LINK </option>

<option value="Royal" > Royal</option>                      

</select>                    

<input type=submit>

</form>



<P>&nbsp;</P>



</BODY>

</HTML>



Roger

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