How to change value of second combo box on change value of first combo box using jquery?
I have two combo box on my page. And when i change the value of first combobox then the value开发者_开发技巧 of second combo box should be according to the first box. if i change the grade A then the value of Scored marks should be 70% and if i change the grade B then the value of Scored marks should be 60%. Is it possible?I don't have any idea. Please help me.
Change Value of Combo
Grade Type Select Grade Type A B C None of these Scored marks No Result 70% 65%
Yes this is possible.
It would help us help you if you posted some example code, but what I would do is set a handler to the first combobox's "change" event:
$('#Combo1').bind('change',function() {$('#Combo2').val('This changed');} );
Or you can also do this the old plain Javascript way :) E.g.
<html>
...
<script type="text/Javascript">
function changeScore() {
var oCombo1 = document.getElementById("COMBO1");
if (oCombo1.value == "A") {
document.getElementById("COMBO2").selectedIndex = 1;
} else if (oCombo1.value == "B") {
document.getElementById("COMBO2").selectedIndex = 2;
} else if (oCombo1.value == "C") {
document.getElementById("COMBO2").selectedIndex = 3;
} else {
document.getElementById("COMBO2").selectedIndex = 0;
}
}
</script>
<form name="frmTEST" action="test.jsp">
<select id="COMBO1" name="COMBO1" onchange="changeScore()">
<option value=""></option>
<option value="A">A</option>
<option value="B">B</option>
<option value="C">C</option>
</select>
<select id="COMBO2" name="COMBO2">
<option value=""></option>
<option value="70">70</option>
<option value="60">60</option>
<option value="51">50</option>
</select>
</form>
...
</html>
加载中,请稍侯......
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