public virtual async Task MoveForwardAsync()
{
if (!CanMoveForward)
{
return;
}
var currentPage = _currentPage;
if (currentPage != null)
{
var vm = currentPage.ViewModel;
if (vm != null)
{
var result = await vm.SaveAndCloseViewModelAsync();
if (!result)
{
return;
}
}
}
var indexOfNextPage = NavigationStrategy.GetIndexOfNextPage(this);
SetCurrentPage(indexOfNextPage);
MovedForward.SafeInvoke(this);
}
public virtual async Task MoveForwardAsync()
{
if (!CanMoveForward)
{
if (_currentPage?.ViewModel is IWizardPageViewModel wizardPageViewModel)
{
wizardPageViewModel.EnableValidationExposure();
}
return;
}
var currentPage = _currentPage;
if (currentPage != null)
{
var vm = currentPage.ViewModel;
if (vm != null)
{
var result = await vm.SaveAndCloseViewModelAsync();
if (!result)
{
return;
}
}
}
var indexOfNextPage = NavigationStrategy.GetIndexOfNextPage(this);
SetCurrentPage(indexOfNextPage);
RaiseMovedForward();
}
public virtual async Task MoveForwardAsync()
{
if (!CanMoveForward)
{
if (_currentPage?.ViewModel is IWizardPageViewModel wizardPageViewModel)
{
wizardPageViewModel.EnableValidationExposure();
}
return;
}
var indexOfNextPage = NavigationStrategy.GetIndexOfNextPage(this);
var isMoving = RaiseMovingForward(_currentPage, Pages.ElementAt(indexOfNextPage));
if (!isMoving)
{
Log.Debug("Cancel move based on raised event returned arguments");
return;
}
// Note: keep *after* the RaiseMovingForward. This allows any vm to handle events and
// correctly unsubscribe in the CloseAsync method
var currentPage = _currentPage;
if (currentPage is not null)
{
var viewModel = currentPage.ViewModel;
if (viewModel is not null)
{
var result = await viewModel.SaveAndCloseViewModelAsync();
if (!result)
{
return;
}
}
}
OnMovingForward();
SetCurrentPage(indexOfNextPage);
OnMovedForward();
RaiseMovedForward();
}