Calling webmethod ina aspx.cs file using jquery ajax

I have a default.aspx.cs which contains my webmethod to call and I have my js file that containg my jquery ajax. I can't get to call the webmethod. Here is my default.aspx.cs: ``` protected void Page_Load(object sender, EventArgs e) { string[] MyArray = new string[1]; MyArray[0] = "My Value"; Grid1D.DataSource = MyArray; Grid1D.DataBind(); } [WebMethod] public Details[] getDetails(string columnname, string inputVal) { List<Details> list = new List<Details>(); DbAccess dbacc = new DbAccess(); DataTable dt = dbacc.getReportDetails(columnname, inputVal); foreach (DataRow row in dt.Rows) { Details _Details = new Details(); _Details.memid = row["memid"].ToString(); _Details.usrname = row["usrname"].ToString(); _Details.fullname = row["fullname"].ToString(); _Details.fname = row["fname"].ToString(); _Details.mname = row["mname"].ToString(); _Details.lname = row["lname"].ToString(); _Details.bdate = row["bdate"].ToString(); _Details.address = row["address"].ToString(); _Details.sponsorid = row["sponsor_id"].ToString(); _Details.parentid = row["parent_id"].ToString(); _Details.placement = row["placement"].ToString(); _Details.datejoined = row["date_joined"].ToString(); list.Add(_Details); } Grid1D.DataSource = list.ToArray(); Grid1D.DataBind(); return list.ToArray(); } ``` And here is my js file: ``` function retrieveReportData() { var columnName = $("#ddlFilters").val(); var input = $("#tags").val(); if (columnName != "Select") { var Data = JSON.stringify({ columnname: columnName, inputVal: input }); alert(Data); $.ajax({ url: "Default.aspx/getDetails", data: Data, type: "POST", dataType: "json", contentType: "application/json; charset=utf-8", success: function (mydata) { alert(mydata.d); } }); } else alert("Please choose search filter"); } ``` You may notice that I'm alerting my data to ensure that I have the right values to send to my webmethod. But just like I said, it fails to call my webmethod and don't proceed to my success function within my ajax. Help! Thanks! :)