private bool FilterPhong_huyen(Phong_huyen entity)
 {
     return (entity.ma_dv == this.ma_dv);
 }
 private void DetachPhong_huyen(Phong_huyen entity)
 {
     entity.khoi = null;
 }
 /// <summary>
 /// Create a new Phong_huyen object.
 /// </summary>
 /// <param name="ma_khoi">Initial value of the ma_khoi property.</param>
 /// <param name="ma_dv">Initial value of the ma_dv property.</param>
 /// <param name="kythuat">Initial value of the kythuat property.</param>
 public static Phong_huyen CreatePhong_huyen(global::System.String ma_khoi, global::System.String ma_dv, global::System.Boolean kythuat)
 {
     Phong_huyen phong_huyen = new Phong_huyen();
     phong_huyen.ma_khoi = ma_khoi;
     phong_huyen.ma_dv = ma_dv;
     phong_huyen.kythuat = kythuat;
     return phong_huyen;
 }
 private void AttachPhong_huyen(Phong_huyen entity)
 {
     entity.khoi = this;
 }
 /// <summary>
 /// Deprecated Method for adding a new object to the Phong_huyen EntitySet. Consider using the .Add method of the associated ObjectSet&lt;T&gt; property instead.
 /// </summary>
 public void AddToPhong_huyen(Phong_huyen phong_huyen)
 {
     base.AddObject("Phong_huyen", phong_huyen);
 }