分享程序员开发的那些事...
更新时间：1970-01-01 07:55:06
我想，您应该为此使用一些常规处理程序： http://jsfiddle.net/maximgladkov/MvLXL/
$（function（）{
window.invalidate_input = function（）{
if（$（'input [name = XIAlmnus]：checked '）.val（）==Yes）
$（'＃XIyop'）。removeAttr（'disabled'）;
else
$（'＃XIyop'）。attr 'disabled'，'disabled'）;
};
$（input [name = XIAlmnus]）。change（invalidate_input）;
invalidate_input（ ）;
}）;
I have 2 radio button ie yes and no. When I select yes the text box as to get enabled. When i click no the text box as to be disabled. How to enable the text box when I click on Yes. Here is the code. Please tel me how to enable and disable it using javascript.
<script type="text/javascript">
$(function() {
$("#XISubmit").click(function(){
var XIyop= document.forms["XIForm"]["XIyop"].value;
var XIForm = $('form[name=XIForm]');
var XIAlmnus = XIForm.find('input[name=XIAlmnus]:checked').val();
if (XIAlmnus == null || XIAlmnus == "")
{
alert("Please select Parent is an Alumnus (old Boy) of this school");
return false;
}
document.getElementById("XIForm").submit();
});
</script>
<!-- html code-->
<html>
...
<label>Parent is an Alumnus (old Boy) of this school </label>   
<input type='radio' name='XIAlmnus' value='Yes' id="XIyes"/>Yes
<input type='radio' name='XIAlmnus' value='No' id="XIno"/>No</td>
<label>If Yes, Year of passing </label>   
<input type="textbox" name="XIyop" id="XIyop" >
...
</html>
I think, you should use some general handler for this: http://jsfiddle.net/maximgladkov/MvLXL/
$(function() {
window.invalidate_input = function() {
if ($('input[name=XIAlmnus]:checked').val() == "Yes")
$('#XIyop').removeAttr('disabled');
else
$('#XIyop').attr('disabled', 'disabled');
};
$("input[name=XIAlmnus]").change(invalidate_input);
invalidate_input();
});