ดึงค่าเข้ามาใน FormView หลังจากการ Insert ข้อมูลได้อย่างไร (MVC)

<%
...
<asp:FormView ID="FormView1" runat="server" DataKeyNames="ProjectID" DataSourceID="ODS1"
        DefaultMode="Insert" OnItemInserted="FormView1_ItemInserted">

 ... Other Template ...

</asp:FormView>
<asp:objectDataSource ID="ODS1" runat="server" InsertMethod="InsertSomething" SelectMethod="GetSomething"

TypeName="MB.SomeNameSpace.BLL.SomeClass.SomeInsertMethod">
<SelectParameters>
     <asp:QueryStringParameter DefaultValue="0" Name="FieldID" Type="String" />
</SelectParameters>
<InsertParameters>
       <asp:Parameter Name="FieldID" Type="String" Direction="ReturnValue" />
       <asp:Parameter .....>
</InsertParameters>
%>

protected void Page_Load(object sender, EventArgs e)
{
}
protected void FormView1_ItemInserted(object sender, FormViewInsertedEventArgs e)
{
       FormView1.ChangeMode(FormViewMode.ReadOnly);      // it not work
       FormView1.DataBind();                                     // Still not work too
    
      // How to get ID when item inserted
}

namespace MB.SomeNameSpace.BLL
{
    public class SomeClass : SomeBaseClass
    {
       ....
    }
    public static String InsertSomething(SomeParam, ..., ...)
    {
       NewID = SiteProvider.SomeClass.MakeNewID(bySomeCode);    
       SomeDetails record = new SomeDetails(SomeParam, ..., ...);  
       bool ret = SiteProvider.SomeClass.InsertProject(record);    
       if(ret) {
           DoMyBussinessSomething();
           // Here, NewID Has value not null
           return NewID;
       } else {
           String.Empty;
       }
    }
}