?using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class DynamicPopulate : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    [System.Web.Services.WebMethod]
    [System.Web.Script.Services.ScriptMethod]
    public static string GetGroupDate(string contextKey)
    {
        System.Threading.Thread.Sleep(1000);
        string value;
        if (contextKey == "N")
        {
            value = DateTime.UtcNow.ToString();
        }
        else if (contextKey == "S")
        {
            value = DateTime.Now.ToShortDateString();
        }
        else
        {
            value = DateTime.Now.ToLongDateString();
        }
        return value;
    }
}