public async Task<DialogResult> ShowAsync(string message, Feature feature, DialogType? type = null)
{
if (message == null) throw new ArgumentNullException(nameof(message));
if (feature == null) throw new ArgumentNullException(nameof(feature));
var dialog = new MessageDialog(message);
UICommandInvokedHandler empty = cmd => { };
dialog.Commands.Add(new UICommand(@"Accept", empty, DialogResult.Accept));
dialog.Commands.Add(new UICommand(@"Cancel", empty, DialogResult.Cancel));
dialog.Commands.Add(new UICommand(@"Decline", empty, DialogResult.Decline));
feature.Pause();
var task = dialog.ShowAsync().AsTask();
var result = await task;
feature.Resume();
return (DialogResult)result.Id;
}
