如何將每個屬性創建爲靜態類？

Question

我已經創建了包含3個項目的解決方案。

//Project Name: ClientProject 
    public class UserDetails 
    { 
     public static int ID { get; set; } 
     public static string Name { get; set; } 
     public static string Email { get; set; } 
    } 

這上面的類應設置一次，當用戶登錄之後，我想跨越整個解決方案訪問這些信息。

與管理，SalesInfo項目一樣。

//Project Name: Administration 
    public class Admin 
    { 
     public static UserDetails Details 
     { 
      //Here i would like to return UserDetails 
      get; 
     } 
     public static int DepartmentID { get; set; } 
     public static string Phone { get; set; } 
     public static string Head { get; set; } 
    } 

    //Project Name: SalesInfo 
    public class Sales 
    { 
     public static UserDetails Details 
     { 
      //Here i would like to return UserDetails 
      get; 
     } 
     public static DateTime Date { get; set; } 
     public static string Item { get; set; } 
     public static int Price { get; set; } 
    } 

任何回答，意見或建議將高度讚賞

Answer 1

通常屬性使用私有字段來存儲數據。此行爲在編譯期間添加，並且在編碼時對開發人員隱藏。靜態方法/屬性不能訪問類中的私有變量/字段。

我建議使用單例模式。

public class UserDetails 
{ 
    private static UserDetails _instance; 

    public int ID { get; set; } 
    public string Name { get; set; } 
    public string Email { get; set; } 

    private UserDetails() {} 

    public static UserDetails Instance 
    { 
     get 
     { 
      if (_instance == null) 
      { 
       _instance = new UserDetails(); 
      } 
      return _instance; 
     } 
    } 
} 

而且你可以消耗這個樣子，

//Project Name: Administration 
public class Admin 
{ 
    public static UserDetails Details 
    { 
     get 
     { 
      return UserDetails.Instance; 
     } 
    } 
    public static int DepartmentID { get; set; } 
    public static string Phone { get; set; } 
    public static string Head { get; set; } 
} 

Answer 2

由Groo提到用一種單身的。

public class UserDetails 
{ 
    public static int ID { get; private set; } 
    public static string Name { get; private set; } 
    public static string Email { get; private set; } 

    private static UserDetails _userDetails; 

    private UserDetails(int id, string name, string email) 
    { 
    ID = id; 
    Name = name; 
    Email = email; 
    } 

    public static UserDetails CreateUserDetails(int id, string name, string email) 
    { 
    if (_userDetails != null) 
    { 
     throw new MyException("Second call to UserDetails.CreateUserDetails!"); 
    } 
    _userDetails = new UserDetails(id, name, email); 

    return _userDetails; 
    } 

    public static UserDetails GetUserDetails() 
    { 
    if (_userDetails == null) 
    { 
     throw new MyException("Not yet created by calling UserDetails.CreateUserDetails!"); 
    } 

    return _userDetails; 
    } 

}

後登錄你打電話UserDetails.CreateUserDetails(...)設置全局對象。
獲取詳細信息致電GetUserDetails()。