[英]Ajax is not working properly in codeigniter
function get_caste()
{
var ajaxRequest; // The variable that makes Ajax possible!
var course_id = document.getElementById('Course_id').value;
var Entry_Type = document.getElementById('Mode_Of_Adm').value;
if(course_id=="")
{
}
else{
ajaxRequest = new XMLHttpRequest();
ajaxRequest.onreadystatechange = function()
{
if(ajaxRequest.readyState == 4)
{
var ajaxDisplay = document.getElementById('Caste_marks');
ajaxDisplay.innerHTML = ajaxRequest.responseText;
}
}
ajaxRequest.open("GET", "<?php echo base_url();?>registrar/AddStudentManually/getcastebycourseentry/" +Entry_Type'/' +course_id true);
ajaxRequest.send();
}
}
</script>
the above Js code fetching cast from getcastebycourseentry function but when i Run This code without ajaxRequest The Code are: 上面的Js代码是从getcastebycourseentry函数中获取的,但是当我运行时,此代码没有ajaxRequest的代码是:
ajaxRequest = new XMLHttpRequest();
ajaxRequest.onreadystatechange = function()
{
if(ajaxRequest.readyState == 4)
{
var ajaxDisplay = document.getElementById('Caste_marks');
ajaxDisplay.innerHTML = ajaxRequest.responseText;
}
}
ajaxRequest.open("GET", "<?php echo base_url();?>registrar/AddStudentManually/getcastebycourseentry/" +Entry_Type'/' +course_id true);
ajaxRequest.send();
its works fine. 它的作品很好。 but when i put above ajaxRequest on it its not working?!!
但是当我把上面的ajaxRequest放在上面时,它不起作用吗?!! get_caste() Function not working?
get_caste()函数不起作用?
try this will work for you.
<html>
<body>
<script language="javascript" type="text/javascript">
<!--
//Browser Support Code
function get_caste(){
var ajaxRequest; // The variable that makes Ajax possible!
try{
// Opera 8.0+, Firefox, Safari
ajaxRequest = new XMLHttpRequest();
} catch (e){
// Internet Explorer Browsers
try{
ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try{
ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
} catch (e){
// Something went wrong
alert("Your browser broke!");
return false;
}
}
}
// Create a function that will receive data sent from the server
ajaxRequest.onreadystatechange = function(){
if(ajaxRequest.readyState == 4){
var ajaxDisplay = document.getElementById('ajaxDiv');
ajaxDisplay.innerHTML = ajaxRequest.responseText;
}
}
var course_id = document.getElementById('Course_id').value;
var Entry_Type = document.getElementById('Mode_Of_Adm').value;
var queryString = "?Course_id=" + Course_id + "&Mode_Of_Adm=" + Mode_Of_Adm;
ajaxRequest.open("GET", "<?php echo base_url();?>registrar/AddStudentManually/getcastebycourseentry/" + queryString, true);
ajaxRequest.send(null);
}
//-->
</script>
<form name='myForm'>
Max Age: <input type='text' id='Course_id' /> <br />
Max WPM: <input type='text' id='Mode_Of_Adm' />
<br />
<input type='button' onclick='get_caste()' value='Query MySQL' />
</form>
<div id='ajaxDiv'>Your result will display here</div>
</body>
</html>
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