private void ClearNavigationStackIfNeed(IDataContext context)
{
if (context == null)
{
context = DataContext.Empty;
}
var backStack = _frame.BackStack;
if (!context.GetData(NavigationConstants.ClearBackStack) || backStack.IsReadOnly)
{
return;
}
for (int index = 0; index < backStack.Count; index++)
{
var vmId = GetViewModelIdFromParameter(backStack[index].Parameter);
var viewModel = _viewModelProvider.TryGetViewModelById(vmId);
if (viewModel != null)
{
var ctx = new DataContext(context);
ctx.AddOrUpdate(NavigationConstants.ViewModel, viewModel);
RaiseNavigated(new RemoveNavigationEventArgs(ctx));
}
backStack.RemoveAt(index);
--index;
}
}
private void ClearNavigationStack(IDataContext context)
{
var backStack = _frame.BackStack;
if (backStack.IsReadOnly)
{
return;
}
for (int index = 0; index < backStack.Count; index++)
{
var vmId = GetViewModelIdFromParameter(backStack[index].Parameter);
var viewModel = _viewModelProvider.TryGetViewModelById(vmId);
if (viewModel != null)
{
var ctx = new DataContext(context);
ctx.AddOrUpdate(NavigationConstants.ViewModel, viewModel);
RaiseNavigated(new NavigationEventArgs(MugenMvvmToolkit.Models.NavigationMode.Remove, ctx, null, null));
}
backStack.RemoveAt(index);
--index;
}
}
