C#的XML序列化和反序列化2

5.格式化文本内容        

         [XmlText()]
         public string Name
         {
             get { return name; }
             set { name = value; }
         }

         则Name会生成在<Pupil>XXX(Name)</Pupil>中作为文本

     6.为元素/属性定义数据类型
         XML Schema类型与.NET数据类型有一个Mapping，比如说type对应System.DateTime

         [XmlElement(DataType = " date " )]
         public DateTime EnrollDate
         {
             get { return enrollDate; }
             set { enrollDate = value; }
         }

         于是生成XML： <EnrollDate>2007-10-19</EnrollDate>
         XMLRoot，XmlAttribute，XMLElement，XMLText，XMLArrayItem标签都可以指定DataType

     7.为枚举修饰符指定其他名称

         public enum Color
         {
             [XmlEnum(Name = " White Color " )]
             White,
             [XmlEnum(Name = " Black Color " )]
             Black,
             [XmlEnum(Name = " Red Color " )]
             Red
         }

         private Color showColor;

         public Color ShowColor
         {
             get { return showColor; }
             set { showColor = value; }
         }

生成XML如下格式：
     <ShowColor>White Color</ShowColor>

     8.串行化多肽数组

         [XmlArray(ElementName = " Cources " ),
         XmlArrayItem(Type = typeof (String), ElementName = " CourceName " ),
         XmlArrayItem(Type = typeof (Int32), ElementName = " CourceCode " )]
         public Object[] Subjects
         {
             get { return subjects; }
             set { subjects = value; }
         }

XmlArrayItem负责指定数组中可能出现的元素类型，以及该类型对应的XML前缀
比如说创建如下的数组：
     Object obj = new Object["Physics", 123, "IT"];

生成XML如下格式：

< Cources >
     < CourceName > Physics </ CourceName >
     < CourceCode > 123 </ CourceCode >
     < CourceName > IT </ CourceName >
</ Cources >

     9.定义可空的对象引用
         如果某属性为null，在串行化时会忽略该属性，可以显示替代的信息，方法如下：

         [XmlElement(IsNullable = true )]
         public string Address
         {
             get { return address; }
             set { address = value; }
         }

在该位置，生成替代XML：
      <Address xsi:nil="true" />

     10.定义可忽略的字段/属性
         [XmlIgnore()]