WPF MVVM检索数据网格选定的行

使用WPF MVVM检索数据网格选定的行

csharp
public class Person
{
    public string Name { get; set; }
    public int Age { get; set; }
}

csharp
public class MainViewModel : INotifyPropertyChanged
{
    private ObservableCollection _people;
    public ObservableCollection People
    {
        get { return _people; }
        set
        {
            _people = value;
            OnPropertyChanged(nameof(People));
        }
    }
    public MainViewModel()
    {
        // 初始化People集合，并添加一些示例数据
        People = new ObservableCollection
        {
            new Person { Name = "John", Age = 25 },
            new Person { Name = "Jane", Age = 30 },
            new Person { Name = "Bob", Age = 35 }
        };
    }
    // 实现INotifyPropertyChanged接口，用于在属性值更改时通知视图更新
    public event PropertyChangedEventHandler PropertyChanged;
    protected virtual void OnPropertyChanged(string propertyName)
    {
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
    }
}

xaml
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:WpfApp"
        Title="MainWindow" Height="450" Width="800">
    
        
    
    
        
    

csharp
public class MainViewModel : INotifyPropertyChanged
{
    // ...
    public ICommand GetSelectedRowCommand { get; }
    public MainViewModel()
    {
        // ...
        GetSelectedRowCommand = new RelayCommand(GetSelectedRow);
    }
    private void GetSelectedRow()
    {
        // 获取选定的行
        Person selectedPerson = People.FirstOrDefault(p => p.IsSelected);
        if (selectedPerson != null)
        {
            // 执行特定操作，如打印选定的行的属性值
            Console.WriteLine($"Selected person: {selectedPerson.Name}, Age: {selectedPerson.Age}");
        }
    }
}

xaml
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:WpfApp"
        Title="MainWindow" Height="450" Width="800">