C#

DECLARE @User   hierarchyid           
SELECT  @User = hierarchyid::Parse('/1/')
 INSERT USERS  (LOGIN,HID) 
        VALUES ('UserName', @User.GetDescendant(NULL, NULL)

SqlHierarchyId NewHID = new SqlHierarchyId();
 NewHID = SqlHierarchyId.Parse("/1/");
 NewHID = NewHID.GetDescendant(null,null);

DECLARE @User hierarchyid            
SELECT  @User = hierarchyid::Parse('/1/')
SELECT  @User.GetDescendant(NULL,NULL).ToString() as Child

public delegate void DoItDelegate(int i);
 public partial class Form1 : Form
 {
     public DoItDelegate MyFunction;
     public int Count=0;
     public Form1()
     {
         InitializeComponent();
         //EveryTime that a function been added to this delegate (MyFunction)
         //I want that the counter will be reset to 0 (Counter=0)
         //The client can add a function to MyFunction throw DLL COM and not just in my code.
         //How can i control it and every time reset to Counter to zero?
         RegisterTheNewMethod();
         MyFunction += new DoItDelegate(DoItFunction);
         MyFunction.Invoke(32);
     }

     public void DoItFunction(int i)
     {
         Count++;
         int j = i;
         //Do Domthing
     }
     //I want to call this function every time that a new Function is added to the Event "MyFunction"
     public void RegisterTheNewMethod()
     {
         Count = 0;
         //Do other things as well
     }
 }