Entry

How do I populate a text box based on only certain values selected from a drop down box?

Apr 8th, 2008 18:54
ha mo, Dave Clark, gurudat prabhu,

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Gurudat,
     This may not be the answer you're looking for, however any other 
answer would probably require server-side code.  So...  This first 
solution is for when using a single-selection dropdown:
<form>
  <p><input type="text" name="mytext" size="40"><br>
  <select size="1" onchange="if(this.selectedIndex > 0)
   this.form.mytext.value+=this.options[this.selectedIndex].text+' ';
   return true;">
    <option>[select one]</option>
    <option>One</option>
    <option>Two</option>
    <option>Three</option>
    <option>Four</option>
    <option>Five</option>
    <option>Six</option>
  </select></p>
</form>
     This second solution is for when using a multiple-selection 
dropdown:
<form>
  <p><input type="text" name="mytext" size="40"><br>
  <select multiple size="6" onchange="this.form.mytext.value='';
   for (x=0; x<this.options.length; ++x)
     if (this.options[x].selected)
       this.form.mytext.value+=this.options[x].text+' ';
   return true;">
    <option>One</option>
    <option>Two</option>
    <option>Three</option>
    <option>Four</option>
    <option>Five</option>
    <option>Six</option>
  </select></p>
</form>
Take care,
Dave Clark
www.DaveClarkConsulting.com
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