Getting values from database in drop down using AJAX

Wed, 06 Apr 2016 11:45:43 GMT

I am having 2 dropdowns what I want is to get values from database when I select any value from 1st drop down the 2nd drop Down should change values and gets populated from database according to the value selected in 1st dropdown..It a one table one only and I am using JavaScript and I know that I need to use ajax but have no idea how should I connect to database through that..

<label> List of Tables : </label><br>

<option value="" selected="selected">Select job</option>

</select>

<br>

<option value="" selected="selected">Select attribute</option>

</select>

</form>

str = document.getElementById("jobs").value;

str1 = document.getElementById("attributes").value;

if (str == "" || str1 == "") {

document.getElementById("txtHint").innerHTML = "";

return;

}

if (window.XMLHttpRequest) { // code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest();

} else { // code for IE6, IE5
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");

}

xmlhttp.onreadystatechange = function () {

if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {

document.getElementById("txtHint").innerHTML = xmlhttp.responseText;

}

xmlhttp.open("GET", "WHAT TO MENTION HERE + str + "&q=" + str1, true);

xmlhttp.send();

}

</script>

PLEASE SUGGEST SOMETHING!!!!!

topic Getting values from database in drop down using AJAX in Integration, Extension & APIs

Getting values from database in drop down using AJAX