Gallifrey.UI.Modern.Flyouts.AddTimer.TransitionSelected C# (CSharp) Method

        private async void TransitionSelected(object sender, RoutedEventArgs e)
        {
            var selectedTransition = string.Empty;

            try
            {
                var dialog = (BaseMetroDialog)this.Resources["TransitionSelector"];
                var comboBox = dialog.FindChild<ComboBox>("Items");

                selectedTransition = (string)comboBox.SelectedItem;
                var jiraRef = DataModel.JiraReference;

                await DialogCoordinator.Instance.HideMetroDialogAsync(modelHelpers.DialogContext, dialog);

                await progressDialogHelper.Do(() => modelHelpers.Gallifrey.JiraConnection.TransitionIssue(jiraRef, selectedTransition), "Changing Status", false, true);
            }
            catch (StateChangedException)
            {
                if (string.IsNullOrWhiteSpace(selectedTransition))
                {
                    await DialogCoordinator.Instance.ShowMessageAsync(modelHelpers.DialogContext, "Status Update Error", "Unable To Change The Status Of This Issue");
                }
                else
                {
                    await DialogCoordinator.Instance.ShowMessageAsync(modelHelpers.DialogContext, "Status Update Error", $"Unable To Change The Status Of This Issue To {selectedTransition}");
                }
            }

            modelHelpers.CloseFlyout(this);
            modelHelpers.RefreshModel();
        }