將對象添加到列表，不能分配給添加，因爲它是一個組方法

Question

目前得到一個錯誤，下面的代碼，我不知道如何解決它！

這是錯誤：

這是我App.xaml.cs：

public partial class App : Application 
{ 
    //Public list of users and form can access 
    List<User> LoggedUsers = new List<User>(); 

    //First startup of the application 
    public void Application_Startup(object sender, StartupEventArgs e) 
    { 
     //First startup, display the login form 
     LoginWindow FirstLogin = new LoginWindow(); 
     FirstLogin.ShowDialog(); 

     //If the login form was closed properly, handle the user 
     if (FirstLogin.DialogResult == true) 
     { 
      //Add the user to the list of logged users 
      User returned = FirstLogin.returnUser; 

      //Create temp duplicate for testing 
      User tmp = new User(); 
      tmp.Email = "email@gmail.com"; 
      tmp.FirstName = "John"; 
      tmp.LastName = "Johnson"; 
      tmp.ID = "01"; 
      tmp.Permissions = 1; 

      LoggedUsers.Add = tmp; 
      LoggedUsers.Add = returned; 
     } 
    } 
} 

這裏是我的LoginWindow.xaml.cs該用戶對象是從何時關閉返回（返回）：

//Give App access to user object outside of this form 
public User returnUser 
{ 
    get 
    { 
     return user; 
    } 
} 

//Public user object, start empty 
User user = new User(); 

//Check the login 
private void doLogin(string username, string password) 
{ 
    //User logged in, add data to user object 
    user.Email = "email@gmail.com"; 
    user.FirstName = "John"; 
    user.LastName = "Johnson"; 
    user.ID = "01"; 
    user.Permissions = 1; 

    //Close the form with dialog result "true" 
    this.DialogResult = true; 
    this.Close(); 
} 

和類，櫃面你需要：

//Logged in users class 
Public Class User 
{ 
    public string ID { get; set; } 
    public string FirstName { get; set; } 
    public string LastName { get; set; } 
    public string Email { get; set; } 
    public Int16 Permissions { get; set; } 
} 

當我解決了這個問題時，爲了某些測試目的將一個重複的對象添加到列表中。

Answer 1

List.Add()是一種方法不是一個屬性：

LoggedUsers.Add(tmp); 
LoggedUsers.Add(returned);