如何僅在類中獲取所有屬性名稱

Question

如何獲取以下類的所有屬性：

public class Employee
{
    int employeeID;
    string lastName;    //  should be (20)  chars only
    string firstName;   //  should be (10)  chars only
    string title;       //  should be (30)  chars only
    string address;     //  should be (60)  chars only
    string city;        //  should be (15)  chars only
    string region;      //  should be (15)  chars only
    string postalCode;  //  should be (10)  chars only
    string country;     //  should be (15)  chars only
    string extension;   //  should be (4)   chars only
    string homePhone;



    public int EmployeeID
    {
        get
        {
            return employeeID;
        }
        set
        {
            employeeID = value;
        }
    }

    public string LastName
    {
        get
        {
            return lastName;
        }
        set
        {
            lastName  = value;
        }
    }

    public string FirstName
    {
        get
        {
            return firstName;
        }
        set
        {
            firstName = value;
        }
    }

    public string Title
    {
        get
        {
            return title;
        }
        set
        {
            title = value;
        }
    }

    public string Address
    {
        get
        {
            return address;
        }
        set
        {
            address = value;
        }
    }

    public string City
    {
        get
        {
            return city;
        }
        set
        {
            city = value;
        }
    }

    public string Region
    {
        get
        {
            return region;
        }
        set
        {
            region = value;
        }
    }

    public string PostalCode
    {
        get
        {
            return postalCode;
        }
        set
        {
            postalCode = value;
        }
    }

    public string Country
    {
        get
        {
            return country;
        }
        set
        {
            country = value;
        }
    }

    public string Extension
    {
        get
        {
            return extension;
        }
        set
        {
            extension = value;
        }
    }
    public string HomePhone
    {
        get { return homePhone; }
        set { homePhone = value; }
    }

}

我嘗試使用Reflection / PropertyInfo，但有一個小問題，數據類型包含在列表中：

  public PropertyInfo[] getPropertyInfo()
  {
        PropertyInfo[] propertyInfos;
        propertyInfos = typeof(Employee).GetProperties();
        return propertyInfos;
   }

先感謝您。

Answer 1

您的方法為每個屬性返回一個PropertyInfo數據結構，其中包括諸如屬性名稱，屬性返回類型等信息。如果只需要名稱，請訪問Name屬性 。

要將PropertyInfo的數組映射到屬性名稱的集合，可以使用LINQ Select擴展方法：

var propertyNames = getPropertyInfo().Select(p => p.Name).ToList();

---

PS：您可能考慮使用自動實現的屬性來減少類中的代碼量：

...
public string LastName { get; set; }    //  should be (20)  chars only
public string FirstName { get; set; }   //  should be (10)  chars only
...