文本框和表单标题之间的简单数据绑定

必须实现INotifyPropertyChanged接口。 尝试下面的代码,看看删除时会发生什么 NotifyPropertyChanged(“MyProperty”); 来自setter:

private class MyControl : INotifyPropertyChanged
{
    private string _myProperty;
    public string MyProperty
    {
        get
        {
            return _myProperty;
        }
        set
        {
            if (_myProperty != value)
            {
                _myProperty = value;
                // try to remove this line
                NotifyPropertyChanged("MyProperty");
            }
        }
    }

    public event PropertyChangedEventHandler PropertyChanged;

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

private MyControl myControl;

public Form1()
{
    myControl = new MyControl();
    InitializeComponent();
    this.DataBindings.Add("Text", myControl, "MyProperty");
}

private void textBox1_TextChanged(object sender, EventArgs e)
{
    myControl.MyProperty = textBox1.Text; 
}

我认为您需要实现INotifyPropertyChanged接口。必须在Windows窗体数据绑定中使用的业务对象上实现此接口。在实现时,接口将业务对象的属性更改传递给绑定控件。

How to: Implement the INotifyPropertyChanged Interface