xamarin/Xamarin.Forms

UWP Frame in title view cause exception

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#9,085 opened on Jan 4, 2020

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a/titleviewhelp wantedi/highinactivep/UWPt/bug :bug:up-for-grabs

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Description

Description

If page title view has Frame switch to other page and back cause exception

Steps to Reproduce

  1. create page with custom Title View which has a Frame
  2. push one more page to stack
  3. pop page from stack

Expected Behavior

original page appears

Actual Behavior

Exception is thrown "Value does not fall within the expected range."

Basic Information

  • Version with issue: XamarinForms 4.4

  • Platform Target Frameworks:

    • UWP: 17144

Reproduction Link

FrameTitleTest.zip

Contributor guide

Research direction
Examine the reproduction steps and trace the UWP Frame rendering lifecycle in Xamarin.Forms. Check the TitleView handling when navigating back.
Tech stack
csharp
Domain
mobile
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Xamarin.FormsUWP
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40