Validate Users’ Selections in Drop-Downs

Question:
I have two drop-down menus. How do I set a validation on my page so that users cannot go all the way to the server if they don’t select something in both drop-down boxes? Here is the code I’ve been working with:

  
  
    
              
          
            
Vessels
          
          
                           
Select a vessel:   <%do while not rs.EOF%>"><%Response.write(rs.fields.getValue("vslname"))%><%rs.moveNext()looprs.close ()%>
Select type of information:        ship identification    ship communications   ship responsibilities    ship particulars    all data   

Answer: 
Try this code. It performs list box validation nicely.

<%@ Language=VBScript %>
Select a vessel:       ship identification    ship communications   ship responsibilities    ship particulars    all data
Select type of information:         ship identification    ship communications   ship responsibilities    ship particulars    all data   

		
				
				

				

					

			

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