Added very nice DataGrid control

UserService.DatabaseLayer/DataModels/Node.cs

@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
-using System.Linq;
 using System.Text;
 
 namespace UserService.DatabaseLayer.DataModels
@@ -9,22 +8,6 @@ namespace UserService.DatabaseLayer.DataModels
     public class OrganizationUnit : Node
     {
         public Member? Manager { get; set; }
-
-        /// <inheritdoc />
-        public override string ToString()
-        {
-            var sb = new StringBuilder();
-            if (Level != 0)
-            {
-                sb.Append("|");
-            }
-
-            sb.Append('-', Level * 4);
-
-            return sb + CommonName;
-        }
-
-
     }
 
     public class SecurityGroup : Member