/// <summary>
/// Creates new collection form and hooks up events.
/// </summary>
/// <returns></returns>
protected override CollectionForm CreateCollectionForm()
{
var form = base.CreateCollectionForm();
var table = ((form as Form).Controls[0] as TableLayoutPanel);
if (table != null)
{
// Hook up property changed event
if (table.Controls[5] is PropertyGrid propertyGrid)
{
propertyGrid.PropertyValueChanged += (sender, args) => CollectionPropertyChanged?.Invoke(this, args);
}
// Hook up collection changed event to add and remove buttons
if (table.Controls[1].Controls[0] is Button addButton)
{
addButton.Click += this.OnAdd;
}
if (table.Controls[1].Controls[1] is Button removeButton)
{
removeButton.Click += this.OnRemove;
}
// Hook up form closed event
form.FormClosed += (sender, args) => FormClosed?.Invoke(this, args);
}
return(form);
}
/// <summary>
/// プロパティ変更時のイベント
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void OnPropertyChanged(object?sender, PropertyChangedEventArgs e)
{
if (sender is null)
{
throw new InvalidOperationException();
}
CollectionPropertyChanged?.Invoke(sender, e);
// 非同期版イベントが購読されていなければ何もしない
var handler = CollectionPropertyChangedAsync;
if (handler is null)
{
return;
}
await Task.WhenAll(
handler.GetInvocationList()
.OfType <NotifyPropertyChangedEventAsync>()
.Select(async(x) => await x.Invoke(sender, e)));
}
protected virtual void OnCollectionPropertyChanged(object sender, [CallerMemberName] string propertyName = null)
{
CollectionPropertyChanged?.Invoke(sender, new PropertyChangedEventArgs(propertyName));
}
