什么是选择串行器

/// <summary>
/// Defines a student.
/// </summary>
[DataContract]
public class Student
{
    /// <summary>
    /// Gets or sets the student number.
    /// </summary>
    [DataMember]
    public string StudentNumber { get; set; }

    /// <summary>
    /// Gets or sets the first name.
    /// </summary>
    [DataMember]
    public string FirstName { get; set; }

    /// <summary>
    /// Gets or sets the last name.
    /// </summary>
    [DataMember]
    public string LastName { get; set; }

    /// <summary>
    /// Gets or sets the marks obtained.
    /// </summary>
    public int MarksObtained { get; set; }
}

/// <summary>
/// A service that provides the operations for students.
/// </summary>
[ServiceContract]
public interface IStudentService
{
    //Service contract code here.
}

在上面的代码 StudentNumber 中，Student 类的 FirstName，LastName 属性用 DataMember 属性明确标记为 MarksObtained，因此 MarksObtained 将被忽略。从忽略意味着它意味着 MarksObtained 不会成为通过电缆进出该服务的数据的一部分。