WinForm界面实现与Model实例的双向绑定

最新推荐文章于 2024-03-20 14:06:55 发布

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本文介绍了一个基于.NET的PersonModel类，该类通过实现INotifyPropertyChanged接口来通知界面元素属性的变化，实现了界面与模型之间的动态绑定。文章展示了如何设置属性更改通知及界面元素的数据绑定。

定义的model类继承接口INotifyPropertyChanged，并实现PropertyChanged；

    public class PersonModel: INotifyPropertyChanged
    {
        private int age;

        public int Age
        {
            get { return age; }
            set { age = value; SendChangeInfo("Age"); }
        }

        private string name;

        public string Name
        {
            get { return name; }
            set { name = value; SendChangeInfo("Name"); }
        }

        private string phone;

        public string Phone
        {
            get { return phone; }
            set { phone = value; SendChangeInfo("Phone"); }
        }

        public event PropertyChangedEventHandler PropertyChanged;

        private void SendChangeInfo(string propertyName)
        {
            if (this.PropertyChanged != null)
            {
                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
            }
        }

    }

将model与界面元素进行绑定

        private PersonModel person = new PersonModel();
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            person.Age = 18;
            person.Name = "张三";
            person.Phone = "111000";

            numAge.DataBindings.Add("Value", person, "Age", false, DataSourceUpdateMode.OnPropertyChanged);
            txtName.DataBindings.Add("Text", person, "Name", false, DataSourceUpdateMode.OnPropertyChanged);
            txtPhone.DataBindings.Add("Text", person, "Phone", false, DataSourceUpdateMode.OnPropertyChanged);
        }