public async Task <int> OnExecuteAsync(CancellationToken ct)
{
ExecuteStarted.TrySetResult(null);
Token = ct;
var tcs = new TaskCompletionSource <object?>();
ct.Register(() => tcs.TrySetResult(null));
await tcs.Task;
return(4);
}
/// <summary> /// 変換開始イベントを実行する /// </summary> /// <param name="sender">イベント呼び出し元オブジェクト</param> /// <param name="e">e</param> private void Command_ExecuteStarted(object sender, EventArgs e) => ExecuteStarted?.Invoke(this, new EventArgs());