BindingList内の項目のプロパティを変更すると、その変更は、基になるオブジェクトが変更されてもListBoxに反映されません。BindlingListの項目プロパティの変更を含むListBoxの更新
public class MyClass : INotifyPropertyChanged
{
public override string ToString()
{
return this.Name;
}
#region Name
private string name;
public string Name
{
get
{
return this.name;
}
set
{
if (value == this.name) return;
this.name = value;
this.OnPropertyChanged("Name");
}
}
#endregion
#region INotifyPropertyChanged event
///<summary>
///Occurs when a property value changes.
///</summary>
public event PropertyChangedEventHandler PropertyChanged;
/// <summary>
/// Raises the <see cref="PropertyChanged"/> event for
/// a given property.
/// </summary>
/// <param name="propertyName">The name of the changed property.</param>
protected void OnPropertyChanged(string propertyName)
{
//validate the property name in debug builds
VerifyProperty(propertyName);
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
}
/// <summary>
/// Verifies whether the current class provides a property with a given
/// name. This method is only invoked in debug builds, and results in
/// a runtime exception if the <see cref="OnPropertyChanged"/> method
/// is being invoked with an invalid property name. This may happen if
/// a property's name was changed but not the parameter of the property's
/// invocation of <see cref="OnPropertyChanged"/>.
/// </summary>
/// <param name="propertyName">The name of the changed property.</param>
[Conditional("DEBUG")]
private void VerifyProperty(string propertyName)
{
Type type = this.GetType();
//look for a *public* property with the specified name
PropertyInfo pi = type.GetProperty(propertyName);
if (pi == null)
{
//there is no matching property - notify the developer
string msg = "OnPropertyChanged was invoked with invalid property name {0}: ";
msg += "{0} is not a public property of {1}.";
msg = String.Format(msg, propertyName, type.FullName);
Debug.Fail(msg);
}
}
#endregion
}
とXAML
<Window x:Class="testBL.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<StackPanel>
<ListBox x:Name="myListBox">
</ListBox>
<Button x:Name="changeButton" Click="changeButton_Click">Change an item</Button>
</StackPanel>
</Window>
あなたのコードは 'BindingList'sを表示しません – Jay