Prism: Remove pages from NavigationStack without pushing another one

[pergerch]

Description

I want to remove pages from my current navigation stack (i.e. I want to go two levels back).

Say my current NavigationUriPath would be NavigationPage/CampaignOverviewPage/CampaignMainPage/RecordPage/SummaryPage

I have a two step approach of recording data, first go the record page and then see the data on the summary page before submitting. After the submit I want to go back to the main page of the data collection campaign.

I tried using NavigationService.NavigateAsync("../../"); but I doesn't do anything. GoBackAsync only works for one level. Removing pages from the NavigationStack only works when pushing another page, which I don't want.

Steps to Reproduce

1. Create a navigation hierarchy similar to above
2. Try to navigate two pages back without pushing another page

Expected Behavior

NavigationService.NavigateAsync("../../"); from the summary page should bring me back to the main page.

Actual Behavior

Nothing happens and I stay at the summary page.

Basic Information

• Version with issue: 7.0.0.396
• Xamarin.Forms version: 2.5.0.122203
• IDE: Visual Studio 2017 Preview

[ChaseFlorell]

funny, I tried this today not realizing that it wasn't supported. This is more "GoBackAsync" related, but should totally be supported 😀

[brianlagunas]

I'm really struggling with this one because I don't like having two ways of doing the same thing. There is already a GoBackAsync API meant for going back. However, this would only work within a NaviationPage, so it may not be that big of a deal.

[brianlagunas]

It's important to understand that the "../" does a RemovePage operation, and not a Pop. So this means that if you were to try and use "../" without pushing another page, you would not get the pop (go back)animation. This may not be the desired end-user experience. I would almost just say that you should call GoBackAsync multiple times.

[ChaseFlorell]

I think the only way to make it go would be to have another internal method for this specific case whereby you remove to underlying Page(s) and then call GoBackAsync :man_shrugging:

[brianlagunas]

Yeah, I'm having a hard time convincing myself to implement this.

[ChaseFlorell]

:cry:

[brianlagunas]

This has been implemented in the form of PR #1427. This will be merged later today and available via our CI builds on MyGet for testing.

[lock[bot]]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.