WPF使用ObservableCollection＜T＞来绑定ItemControl类容器例子

不念不忘少年蓝@ 2023-01-10 14:41 138阅读 0赞

### 一.新建Model，User.cs类，继承INPC接口 ###

public class User : INotifyPropertyChanged
        {
            public event PropertyChangedEventHandler PropertyChanged;
            private string _age;
            public string Age
            {
                get { return _age; }
                set
                {
                    _age = value;
                    if (PropertyChanged != null)
                    {
                        PropertyChanged(this, new PropertyChangedEventArgs("Age"));
                    }
                }
            }
    
            private string _name;
            public string Name
            {
                get { return _name; }
                set
                {
                    _name = value;
                    if (PropertyChanged != null)
                    {
                        PropertyChanged(this, new PropertyChangedEventArgs("Name"));
                    }
                }
            }
    
            private string _sex;
            public string Sex
            {
                get { return _sex; }
                set
                {
                    _sex = value;
                    if (PropertyChanged != null)
                    {
                        PropertyChanged(this, new PropertyChangedEventArgs("Sex"));
                    }
                }
            }
        }

### 二.XAML代码 ###

三.后台代码：

namespace ObservableCollectionDemo
    {
        /// <summary>
        /// MainWindow.xaml 的交互逻辑
        /// </summary>
        public partial class MainWindow : Window
        {
            public MainWindow()
            {
                InitializeComponent();
                Loaded += Window_Loaded;
            }
            
            public ObservableCollection<User> datalist = new ObservableCollection<User>();
    
            private void Window_Loaded(object sender, RoutedEventArgs e)
            {
                dgUser.ItemsSource = datalist;//绑定ItemSource,使用ObervableCollection
            }
    
            private void btnAdd_Click(object sender, RoutedEventArgs e)
            {
                User user = new User();
                user.Name = txtName.Text;
                user.Age = txtAge.Text;
                user.Sex = txtSex.Text;
                datalist.Add(user);
            }
    
            private void btnUpdate_Click(object sender, RoutedEventArgs e)
            {
                foreach (var item in datalist)
                {
                    if (item.Name == txtName.Text)
                    {
                        item.Age = txtAge.Text;
                        item.Sex = txtSex.Text;
                    }
                }
            }
    
            private void btnDelete_Click(object sender, RoutedEventArgs e)
            {
                var ca = (User)this.dgUser.SelectedItem;
                datalist.Remove(ca);
            }
    
            //单机选中一行，修改下方编辑窗的内容
            private void dgStudent_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
            {
                var selectUser = (User)this.dgUser.SelectedItem;
                if (selectUser != null)
                {
                    txtName.Text = selectUser.Name;
                    txtAge.Text = selectUser.Age;
                    txtSex.Text = selectUser.Sex;
                }
            }
        }
    }