c# - 想要将 Cs 文件中的 List 绑定(bind)到 Xaml 中的 Grid，而无需隐藏代码中的任何代码

Question

我想将 Xaml 文件中的 DataGrid 与不在代码隐藏中但在 cs 文件中的集合绑定(bind)

我尝试了不同的方法但没有成功，其实我不想在代码隐藏文件中编写任何代码。

类代码

public class Employee : INotifyPropertyChanged
{            
    private int _Id;
    private string _FirstName;
    private string _LastName;
    private double _Salary;
    public event PropertyChangedEventHandler PropertyChanged;

    public Employee()
    {
    }
    public Employee(int pId, string pFirstName, string pLastName, double pSalary)
    {
        Id = pId;
        FirstName = pFirstName;
        LastName = pLastName;
        Salary = pSalary;
    }

    public int Id
    {
        set 
        { 
            _Id = value;
            NotifyPropertyChanged("Id");
        }
        get { return _Id; }
    }
    public string FirstName
    {
        set 
        { 
            _FirstName = value;
            NotifyPropertyChanged("FirstName");
        }
        get { return _FirstName; }
    }
    public string LastName
    {
        set 
        { 
            _LastName = value;
            NotifyPropertyChanged("LastName");
        }
        get { return _LastName; }
    }
    public double Salary
    {
        set 
        {             
            _Salary = value;
            NotifyPropertyChanged("Salary");
        }
        get { return _Salary; }
    }
    private void NotifyPropertyChanged(string pProperty)
    {
        if (PropertyChanged != null)
            PropertyChanged(this, new PropertyChangedEventArgs(pProperty)); 
    }
}


public class EmployeeCollection
{
     ObservableCollection<Employee> lstEmp = new ObservableCollection<Employee>();
     public ObservableCollection<Employee> GetEmployees()
     {
          lstEmp.Add(new Employee(1,"Firstname 1", "Lastname 1", 1.1 ));
          lstEmp.Add(new Employee(2, "Firstname 2", "Lastname 2", 2.2));
          lstEmp.Add(new Employee(3, "Firstname 3", "Lastname 3", 3.3));
          lstEmp.Add(new Employee(4, "Firstname 4", "Lastname 4", 4.4));
          lstEmp.Add(new Employee(5, "Firstname 5", "Lastname 5", 5.5));
          lstEmp.Add(new Employee(6, "Firstname 6", "Lastname 6", 6.6));

          return lstEmp;
     }
}

它的 Xaml 代码

<my:DataGrid  AutoGenerateColumns="true" Margin="20,0,68,10" Name="dataGrid2" Height="135" VerticalAlignment="Bottom" />

Answer 1

如果我能以对我有意义的方式修改类，我会更改 GetEmployees()到静态属性。然后您可以简单地编写( local 是包含 Employee 的命名空间的命名空间前缀):

<DataGrid ItemsSource="{x:Static local:Employee.Employees}" />

如果你想保持类的原样，首先声明一个ObjectDataProvider作为资源(例如在 <Window.Resources> 中):

<ObjectDataProvider ObjectType="local:Employee" MethodName="GetEmployees"
    x:Key="employees" />

然后使用它:

<DataGrid ItemsSource="{Binding Source={StaticResource employees}}" />