[C#] INotifyPropertyChanged.PropertyChanged 이벤트

속성 값이 변경되면 발생합니다.

네임스페이스: System.ComponentModel

// This class implements a simple customer type // that implements the IPropertyChange interface. public class DemoCustomer : INotifyPropertyChanged { // These fields hold the values for the public properties. private Guid idValue = Guid.NewGuid(); private string customerName = String.Empty; private string companyNameValue = String.Empty; private string phoneNumberValue = String.Empty; public event PropertyChangedEventHandler PropertyChanged; private void NotifyPropertyChanged(String info) { if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(info)); } } // The constructor is private to enforce the factory pattern. private DemoCustomer() { customerName = "no data"; companyNameValue = "no data"; phoneNumberValue = "no data"; } // This is the public factory method. public static DemoCustomer CreateNewCustomer() { return new DemoCustomer(); } // This property represents an ID, suitable // for use as a primary key in a database. public Guid ID { get { return this.idValue; } } public string CompanyName { get { return this.companyNameValue; } set { if (value != this.companyNameValue) { this.companyNameValue = value; NotifyPropertyChanged("CompanyName"); } } } public string PhoneNumber { get { return this.phoneNumberValue; } set { if (value != this.phoneNumberValue) { this.phoneNumberValue = value; NotifyPropertyChanged("PhoneNumber"); } } } }

※ 바인딩 소스 오브젝트에 반드시 INotifyPropertyChanged 인터페이스 구현