private async void Invoke2_OnClick(object sender, RoutedEventArgs e)
 {
     try
     {
         Status2 = string.Format("starting Invoke 2");
         var res = await _ctx.AddOneAsync(22);
         Status2 = string.Format("AddOneTaskAsync(22) = {0}", res.Value);
     }
     catch (Exception ex)
     {
         MessageBox.Show("Error" + ex.Message);
     }
 }
Exemple #2
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        private async void Invoke2_OnClick(object sender, EventArgs e)
        {
            try
            {
                Status2 = string.Format("starting Invoke 2");
                var res = await _ctx.AddOneAsync(22);

                Status2 = string.Format("AddOneTaskAsync(22) = {0}", res.Value);
            }
            catch (Exception ex)
            {
                await DisplayAlert("Error", ex.Message, "OK");
            }
        }