private async void OnDelete(CustomerFormViewModel viewModel)
{
if (viewModel == null)
{
return;
}
if (await DialogController.Instance.ShowWarningMessageAsync(
$"Do you wish to delete item '{viewModel.Id}'?") == MessageDialogResult.Affirmative)
{
var repo = _repositoryFactory.Create <Customer>();
repo.Delete(viewModel.Id);
Refresh();
}
}
private void SetNavigationRestriction(CustomerFormViewModel viewModel)
{
EventHandler <object> navigating = null;
navigating = async(sender, e) =>
{
var isWaiting = false;
if (viewModel.IsDirty && (viewModel.Id != 0 || viewModel.IsInitialized))
{
isWaiting = await DialogController.Instance.ShowWarningMessageAsync(
"The form has not been saved. Do you wish to continue?") == MessageDialogResult.Negative;
_navigator.SetNavigatingResponse(isWaiting);
}
_navigator.SetIsWaitingOnNavigatingResponse(isWaiting);
};
EventHandler <object> navigated = null;
navigated = (sender, e) =>
{
if (e.ToString().Equals(typeof(CustomerFormViewModel).FullName))
{
_navigator.SetIsWaitingOnNavigatingResponse(true);
}
else
{
_navigator.Navigating -= navigating;
_navigator.Navitgated -= navigated;
}
};
_navigator.Navigating += navigating;
_navigator.Navitgated += navigated;
}
