모두 함께 대상을 향한 3층 구조를 배워봅시다!오늘은 제가 Entity를 말씀드리자면 가끔 MODEL 실체층이라고도 합니다!

  1:  #region  

  2:      /// <summary>

  3:      ///  

  4:      /// </summary>

  5:      public interface IDataEntity

  6:      {

  7:      }

  8:      /// <summary>

  9:      ///  

 10:      /// </summary>

 11:      public interface IEntity

 12:      {

 13:          /// <summary>

 14:          ///  , , , set

 15:          /// </summary>

 16:          bool IsValid { get; }

 17:          /// <summary>

 18:          ///  

 19:          /// </summary>

 20:          /// <returns></returns>

 21:          IEnumerable<RuleViolation> GetRuleViolations();

 22:      }

 23:      /// <summary>

 24:      ///  

 25:      /// </summary>

 26:      public class RuleViolation

 27:      {

 28:          public string ErrorMessage { get; private set; }

 29:          public string PropertyName { get; private set; }

 30:          public RuleViolation(string propertyName, string errorMessage)

 31:          {

 32:              this.ErrorMessage = errorMessage;

 33:              this.PropertyName = propertyName;

 34:          }

 35:          public RuleViolation(string errorMessage)

 36:          {

 37:              this.ErrorMessage = errorMessage;

 38:          }

 39:      }

 40:      public partial class Department : IDataEntity

 41:      {

 42:          // 

 43:          #region original field

 44:   

 45:          /// <summary>

 46:          /// 

 47:          /// </summary>

 48:          public int DeptID { get; set; }

 49:   

 50:          /// <summary>

 51:          /// 

 52:          /// </summary>

 53:          public string DeptName { get; set; }

 54:   

 55:          /// <summary>

 56:          /// 

 57:          /// </summary>

 58:          public DateTime CreateDate { get; set; }

 59:   

 60:          /// <summary>

 61:          /// 

 62:          /// </summary>

 63:          public DateTime UpdateDate { get; set; }

 64:   

 65:          /// <summary>

 66:          /// 

 67:          /// </summary>

 68:          public string Operator { get; set; }

 69:   

 70:          /// <summary>

 71:          ///  ID， ID 0

 72:          /// </summary>

 73:          public int ParentID { get; set; }

 74:   

 75:          #endregion

 76:  

 77:          // 

 78:          #region extensional field

 79:          #endregion

 80:  

 81:          // 

 82:          #region constructed function

 83:   

 84:          /// <summary>

 85:          ///  

 86:          /// </summary>

 87:          public Department()

 88:          {

 89:   

 90:          }

 91:   

 92:          /// <summary>

 93:          ///  

 94:          /// </summary>

 95:          /// <param name="_DeptID"></param>

 96:          public Department(Int32 _DeptID)

 97:          {

 98:              this.DeptID = _DeptID;

 99:   

100:          }

101:   

102:          #endregion

103:  

104:          // 

105:          #region function

106:   

107:          #endregion

108:  

109:          // 

110:          #region object overrides

111:   

112:          #endregion

113:      }

114:   

115:      public partial class Department : IEntity

116:      {

117:   

118:          #region IEntity  

119:   

120:          public bool IsValid

121:          {

122:              get { return (GetRuleViolations().Count() == 0); }

123:          }

124:   

125:          public IEnumerable<RuleViolation> GetRuleViolations()

126:          {

127:              if (String.IsNullOrEmpty(this.DeptName))

128:                  yield return new RuleViolation(" ", "DeptName");

129:              if (String.IsNullOrEmpty(this.Operator))

130:                  yield return new RuleViolation(" ", "Operator");

131:              yield break;

132:          }

133:   

134:          #endregion

135:      }

136:   

137:      #endregion