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Script to force a radio button selection...

Posted on 2004-09-11
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Last Modified: 2008-03-10
I'm querying a database with ASP that lists selections with radio buttons, and it lists anywhere from zero to 30 records. I have this code to force a selection before going to the next page:

<script language="JavaScript">
function checkForm(theForm) {
  msg = "";
  qTrain = theForm.schedule_chosen;
  qCheck = false;
  for(i=0;i<qTrain.length;i++){
    if(qTrain[i].checked==true){
      qCheck = true;
    }
  }
  if (qCheck == false) {
    msg += "You must choose a shift";
  }
  if (msg>"") {
    alert (""+msg);
    return false
  }
}    
</script>

It works just fine when I have more than 1 record listed, but when there is only 1 listed it keeps prompting the user with "You must choose a shift". Any idea what's wrong in this script? If it helps, this is my code for the radio buttons:

Response.Write "<tr><td><input type='radio' name='schedule_chosen' value='"&rs2("num")&"'>" & rs2("11_26") & "</td></tr>"

Any help is much appreciated.

Scottie
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Comment
Question by:scottie_24
  • 2
3 Comments
 
LVL 13

Expert Comment

by:davidlars99
ID: 12036692
try this

<script language="JavaScript">
function checkForm(theForm) {
  var msg = null;
  qTrain = theForm.schedule_chosen;
  qCheck = false;
  for(i=0;i<qTrain.length;i++){
    if(qTrain[i].checked==true){
      qCheck = true;
    }
  }
  if (qCheck == false) {
    msg += "You must choose a shift";
  }
  if (msg) {
       alert (""+msg);
    return false
  }
}    
</script>
0
 
LVL 13

Accepted Solution

by:
davidlars99 earned 2000 total points
ID: 12036702
or

<script language="JavaScript">

function checkForm(theForm) {
  qTrain = theForm.schedule_chosen;
  qCheck = false;
  for(i=0;i<qTrain.length;i++){
       if(qTrain[i].checked){
           return true;
       }else{
           alert("You must choose a shift");
           return false
      }
   }
}    
</script>
0
 

Author Comment

by:scottie_24
ID: 12036728
Works like a charm, thanks.
0

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