How to assign navigate url property dynamically of menu control

try the below code its working on my projects. Put the below code in your master page or where ever you have the menu control placed. I have used List here. You can use data table also using the same code. PopulateChildMenuItems function is called for recursively adding child menu items

protected void Page_Load(object sender, EventArgs e)
{
if (HttpContext.Current.Session["UserDetails"] == null)
{
Response.Redirect("~/Login.aspx");
}
if (!this.IsPostBack)
{
populateMenuItems();
}
}


protected void populateMenuItems()
{
userDetails = (UserBAL)(HttpContext.Current.Session["UserDetails"]);

List<menubal> menuItems = CacheMaster.getMenuList(userDetails.UserID); //MenuDAL.getMenuList(userDetails.UserID);

List<menubal> parentMenuItems = menuItems.FindAll(x => x.ParentMenuID == 0);


foreach (MenuBAL item in parentMenuItems)
{
MenuItem mnuParent = new MenuItem();
//mnuParent.Target = item.MenuURL;
mnuParent.Text = item.MenuName;
mnuParent.NavigateUrl = item.MenuURL;
mnuParent.Value = item.MenuID.ToString();

populateChildItems(ref mnuParent, menuItems);

mnuMain.Items.Add(mnuParent);
}
}

protected void populateChildItems(ref MenuItem parentMenuItem, List<menubal> menuList)
{
Int32 parentMenuID = Convert.ToInt32(parentMenuItem.Value);
List<menubal> childItems = menuList.FindAll(x => x.ParentMenuID == parentMenuID);

foreach (MenuBAL item in childItems)
{
MenuItem childMenu = new MenuItem();

childMenu.Text = item.MenuName;
//childMenu.Target = item.MenuURL;
childMenu.NavigateUrl = item.MenuURL;
childMenu.Value = item.MenuID.ToString();

populateChildItems(ref childMenu, menuList);

parentMenuItem.ChildItems.Add(childMenu);
}
}