protected async void Cancel()
{
await TaskHasChanged.InvokeAsync(true);
}
//protected override async System.Threading.Tasks.Task OnInitializedAsync()
//{
//}
//// wenn Parameter gesetzt wird
//protected async override void OnParametersSet()
//{
//}
protected async void Save()
{
await proxy.ChangeTaskAsync(this.Task, am.Token);
await TaskHasChanged.InvokeAsync(false);
}