C#

[DllImport("user32.dll")]
public static extern int ExitWindowsEx(int uFlags, int dwReason);

 [WebMethod, System.Web.Script.Services.ScriptMethod]
public static void Getadata(String StrSearch)
{
    View obj = new View();
    obj.Bind_SearchBox(StrSearch);

   // return Scriptt;
}

public void Bind_SearchBox(String Search)
    {


        ViewerService.ViewerService obj = new ViewerService.ViewerService();

        String SessionKey = obj.newSession();

        DateTime Date1 = Convert.ToDateTime("1980-01-01");
        DateTime Date2 = Convert.ToDateTime("2012-12-31");

        ViewerService.extract extract = obj.getObjects(SessionKey, Search, Date1, false, Date2, false, "", "");
        try
        {
            RadPanelBar1.Items.Clear();
            RadScheduler1.Appointments.Clear();

            int Len = extract.set.Length;
            for (int i = 0; i < Len; i++)
            {
                ViewerService.vertex value = extract.set[i];

                String PanelClass = value.meta;
                PanelClass = PanelClass.Replace(Remstr, "");
                PanelClass = PanelClass.Replace(Remstr2, "");
                Appointment app = null;
                if (value.atom != null)
                {

                    RadPanelItem pane = RadPanelBar1.Items.FindItemByText(PanelClass);
                    if (pane == null)
                    {
                        RadPanelItem nwpane = new Telerik.Web.UI.RadPanelItem(PanelClass);
                        RadPanelItem nwpaneSpliter = new Telerik.Web.UI.RadPanelItem(PanelClass);
                        nwpaneSpliter.IsSeparator = true;
                        RadPanelBar1.Items.Add(nwpane);
                        pane = nwpane;
                    }
                    if (value.meta == "za.co.abacus.C_EVENT")
                    {
                        app = new Appointment();
                    }

                    int atomLen = value.atom.Length;
                    for (int j = 0; j < atomLen; j++)
                    {
                        ViewerService.atom atm = value.atom[j];

                        if (atm.meta.Contains("za.co.reactor.A_LABEL"))
                        {
                            RadPanelItem NewItem = new RadPanelItem(atm.content);
                            pane.Items.Add(NewItem);
                            if (app != null)
                            {
                                app.Subject = atm.content;
                                app.Description = atm.content;
                                app.ID = value.key;
                            }

                        }

                        if (app != null && atm.meta.Contains("za.co.abacus.C_EVENT"))
                        {
                            app.ID = atm.content;
                        }
                        if (app != null && atm.meta.Contains("za.co.reactor.A_HORIZON"))
                        {
                            app.Start = Convert.ToDateTime(atm.content);
                        }
                        if (app != null && atm.meta.Contains("za.co.reactor.AA_HORIZON"))
                        {
                            app.End = Convert.ToDateTime(atm.content);
                        }
                        if (app != null && atm.meta.Contains("za.co.reactor.A_TEXT"))
                        {
                            app.Description = atm.content;
                        }
 
                        if (app != null && app.End > app.Start)
                        {
                            RadScheduler1.DataStartField = app.Start.ToString();
                            RadScheduler1.DataSubjectField = app.Subject.ToString();
                            RadScheduler1.DataEndField = app.ToString();
                            RadScheduler1.DataKeyField = app.ID.ToString();
                            RadScheduler1.SelectedView = SchedulerViewType.MonthView;
                            RadScheduler1.SelectedDate = app.Start;
                            RadScheduler1.Visible = true; 

                        }
                    }


                }

            }
        }
        catch (ApplicationException ex)
        {

        }
        finally
        {
            obj.closeSession(SessionKey);

        }
 

    }

function keyPress() {
     var tb = document.getElementById("<%=txtsearchid%>");
     if (tb.value.length == 2) {
         PageMethods.Getadata(tb.value);
         ToggleCollapsePane();

     }
     return false;
 }

function ToggleCollapsePane() {

        var splitter = $find("RadSplitter1");

        var pane = splitter.getPaneById("LeftPane");

        if (!pane) return;

        if (pane.get_collapsed()) {
            pane.expand();
        }
        else {
            pane.collapse();

        }
    }

protected void btnSearch_Click(object sender, EventArgs e)
{

    RadToolBarItem textItem = RadToolBar1.FindItemByText("Button1");

    TextBox txtseach = (TextBox)textItem.FindControl("txtsearch");

    if (txtseach.Text != "")
    {
        Bind_SearchBox(txtseach.Text.Trim());

    }

}

<br />
Microsoft JScript runtime error: Sys.Net.WebServiceFailedException: The server method 'Getadata' failed with the following error: System.NullReferenceException-- Object reference not set to an instance of an object.