Server side method not getting called
- by Rangel Fernandes
From the below javascript code i am trying to call a serverside method, but serververside method is not getting called. I am using jquery, ajax
<script type="text/javascript" src="JquryLib.js"></script>
<script type="text/javascript" language="javascript">
function fnPopulateCities() {
debugger;
var State = $("#ddlState").val();
GetCities(State);
return false;
}
function GetCities(StateId) {
debugger;
var v1 = 'StateId: ' + StateId;
$.ajax(
{
type: "POST",
url: 'DropDownList_Cascade.aspx/PopulateCities',
data: '{' + v1 + '}',
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (result) {
if (result.status === "OK") {
alert('Success!!');
}
else {
fnDisplayCities(result);
}
},
error: function (req, status, error) {
alert("Sorry! Not able to retrieve cities");
}
});
}
</script>
This is my serverside method which i need to call.
private static ArrayList PopulateCities(int StateId)
{
//this code returns Cities ArrayList from database.
}
It is giving me the following error: 500 (Internal Server Error)
I cannot figure out what is wrong. please help!
Stack Trace:
[ArgumentException: Unknown web method PopulateCities.Parameter name: methodName]
