PropertyChangedEventHandler Delegate

Reference

Definition

Namespace:: Microsoft.UI.Xaml.Data

Important

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Edit

Represents the method that will handle the PropertyChanged event. When programming with Microsoft .NET this delegate is hidden, use the System.ComponentModel.PropertyChangedEventHandler delegate.

[Windows.Foundation.Metadata.ContractVersion(typeof(Microsoft.UI.Xaml.WinUIContract), 65536)]
[Windows.Foundation.Metadata.Guid(3822998262, 7730, 23974, 187, 45, 181, 182, 9, 108, 150, 45)]
public delegate void PropertyChangedEventHandler(object sender, PropertyChangedEventArgs e);

Public Delegate Sub PropertyChangedEventHandler(sender As Object, e As PropertyChangedEventArgs)

Parameters

sender: Object

The source of the event.

e: PropertyChangedEventArgs

Event data.

Attributes: ContractVersionAttribute GuidAttribute

Examples

This example demonstrates how to implement the INotifyPropertyChanged interface and use PropertyChangedEventHandler. For the complete code listing, see the XAML data binding sample.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DataBinding
{
    public class Employee : INotifyPropertyChanged 
    {
        private string _name;
        private string _organization;

        public string Name
        {
            get { return _name; }
            set
            {
                _name = value;
                RaisePropertyChanged("Name");
            }
        }

        public string Organization
        {
            get { return _organization; }
            set
            {
                _organization = value;
                RaisePropertyChanged("Organization");
            }
        }


        public event PropertyChangedEventHandler PropertyChanged;
        protected void RaisePropertyChanged(string name)
        {
            if (PropertyChanged != null)
            {
                PropertyChanged(this, new PropertyChangedEventArgs(name));
            }
        }
    }
}

Remarks

When programming with Microsoft .NET, this delegate is hidden. Microsoft .NET Developers should use the System.ComponentModel.PropertyChangedEventHandler delegate.

Applies to