I'm trying to implement a CascadingDropDown but when it should execute the DropDown gets filled with [Method Error 500]. I'm probably missing something relatively simple and maybe someone could look through the following code and point out the error.
.ASMX File
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using AjaxControlToolkit;
using System.Web.Script.Services;
using System.Diagnostics;
namespace RedDash
{
/// <summary>
/// Summary description for AllergyNames
/// </summary>
[WebService(Namespace = "RedDash")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
[ScriptService]
public class AllergyNames : System.Web.Services.WebSer ...
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