1 部门增加 校区默认值

Edu.Model/Entity/User/RB_Department.cs

@@ -67,9 +67,18 @@ namespace Edu.Model.Entity.User
 		public DateTime UpdateTime { get; set; }
 
         /// <summary>
-		/// 校区编号
+        /// 校区默认值
         /// </summary>
-		public int School_Id { get; set; }
+        private int defaultSId = -1;
+
+        /// <summary>
+        /// 学校编号
+        /// </summary>
+        public int School_Id
+        {
+            get { return defaultSId; }
+            set { defaultSId = value; }
+        }
 
 		/// <summary>
 		/// 部门层级