I am trying to make the second drop down list dependant on the selection of the first one. My question is this. What is the syntax for adding options to the second list later after the user has selected something in the first list.

can anyone give me the code in asp for the same???

You need to use javascript or other "client-side" method, as ASP cannot do anything more once the html has been sent to the browser.

This may be what you want:

<script language="JavaScript1.2">

 function selectCombo() {
 var aa;
 var s,ss;
 var s = myForm1.selectitem1.value;
 ss = s.split("&");
 for (i = 0; i < ss.length ; i++) {
 myForm1.selectitem2.options[i].text = ss[i];
 }
 }
 </SCRIPT>
 <form name=myForm1 >

<SELECT id=selectitem1 name=selectitem1 style="HEIGHT: 66px; LIST-STYLE: square; WIDTH: 155px" dataFld="" onChange=selectCombo()>
<option value= Item1-1&Item1-2&Item1-3>Item 1</option>
<option value= Item2-1&Item2-2&Item2-3>Item 2</option>
<option value= Item3-1&Item3-2&Item3-3>Item 3</option>
</select>

<SELECT id=selectitem2 name=selectitem2 style="HEIGHT: 66px; LIST-STYLE: square; WIDTH: 155px" dataFld="" >
 <OPTION value=>Item1-1</option>
 <OPTION value=>Item1-2</option>
 <OPTION value=>Item1-3</option>
</select>
</form>

check this site :

http://www.atgconsulting.com/doublelist.asp

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