Dynamic menu generation.[from database]

If you want to add menu items by your self, you can make a menu table, that submenus has parent menuid field and parents be null in this field. and use something like this code in pageload :

void BindParentMenu()
   {
       try
       {

           Menu1.Items.Clear();

           //Add all items with null parentID
           SqlDataReader sdr = df.Get_All_ParentMainMenu();
           while (sdr.Read())
           {
               MenuItem mBase = new MenuItem();
               mBase.Value = sdr["MenuID"].ToString();
               mBase.Text = sdr["Title"].ToString();
               mBase.NavigateUrl = sdr["Url"].ToString();
               if (sdr["Url"].ToString() == "#")
               {
                   mBase.NavigateUrl = Request.Url.AbsoluteUri + "#";
               }
               SubMenu(mBase);
               Menu1.Items.Add(mBase);
                           }
           sdr.Close();
       }
       catch (Exception)
       {
       }
   }

  void SubMenu(MenuItem mBase)
   {
       try
       {
           //All items that their parent is mBase
           SqlDataReader sdr = df.Get_All_Menu_Child(Convert.ToInt32(mBase.Value));
           while (sdr.Read())
           {
               MenuItem mChild = new MenuItem();
               mChild.Value = sdr["MenuID"].ToString();
               mChild.Text = sdr["Title"].ToString();
               mChild.NavigateUrl = sdr["Url"].ToString();
               if (sdr["Url"].ToString() == "#")
               {
                   mChild.NavigateUrl = Request.Url.AbsoluteUri + "#";
               }
               mBase.ChildItems.Add(mChild);
               SubMenu(mChild);
           }
           sdr.Close();
       }
       catch (Exception)
       {
       }
   }

You have to make sure your database table is capable of providing the info necessary to fully configure the menu, which means you need more than just a cursory knowledge of the and MenuItem class. I have my own ideas about how to do it, but it would be worthy of an article, and much too extensive to fit into a quick answer.

Beyond that Google is where you want to look. Here's a Codeproject article I found using the search term "C# create menu dynamically":

C# Creating Dynamic Menus[^]

A similar question was asked earlier. The answers here may help you -
Dynamic Menu Creation.........asp.net[^]
Dynamic Cascading Popup Menus -- impossible[^]