Add or remove options from select form control : Option Select ComboBox « Form Control « JavaScript DHTML






  1. JavaScript DHTML
  2. Form Control
  3. Option Select ComboBox

Add or remove options from select form control

   

<HTML>
<HEAD>
<SCRIPT LANGUAGE=JavaScript>
function butRemoveWed_onclick() 
{
   if (document.form1.theDay.options[2].text == "AAA") 
   {
      document.form1.theDay.options[2] = null;
   } 
   else 
   {
      alert('There is no AAA here!');
   }
}
function butAddWed_onclick() 
{
      var i;
      var days = document.form1.theDay;
      var lastoption = new Option();
      days.options[6] = lastoption;
    
      for (i = 6;i > 2; i--)
      {
        days.options[i].text = days.options[i - 1].text;
        days.options[i].value = days.options[i - 1].value;
      }
      var option = new Option("AAA",2);
      days.options[2] = option;
}
</SCRIPT>
</HEAD>
<BODY>
<FORM NAME=form1>
<SELECT NAME=theDay SIZE=5>
   <OPTION VALUE=0 SELECTED>111
   <OPTION VALUE=1>222
   <OPTION VALUE=2>AAA
   <OPTION VALUE=3>333
   <OPTION VALUE=4>444
   <OPTION VALUE=5>555
   <OPTION VALUE=6>666
</SELECT>
<BR>
<INPUT TYPE="button" 
       VALUE="Remove AAA" 
       NAME=butRemoveWed 
       onclick="butRemoveWed_onclick()">
<INPUT TYPE="button" 
       VALUE="Add AAA" 
       NAME=butAddWed 
       onclick="butAddWed_onclick()">
<BR>
</FORM>
</BODY>
</HTML>








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