Bug 37003 - Compiled XAML - Exception thrown with AbsoluteLayout containing AutoSize child
Summary: Compiled XAML - Exception thrown with AbsoluteLayout containing AutoSize child
Alias: None
Product: Forms
Classification: Xamarin
Component: Forms ()
Version: 2.0.0
Hardware: PC Mac OS
: --- normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2015-12-15 01:32 UTC by Drew Lederman
Modified: 2016-01-04 09:50 UTC (History)
6 users (show)

Is this bug a regression?: ---
Last known good build:

Sample app (30.96 KB, application/zip)
2015-12-15 01:38 UTC, Drew Lederman

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Description Drew Lederman 2015-12-15 01:32:58 UTC
When XAML compilation is enabled, an exception is thrown when loading a page that contains an AbsoluteLayout with a child whose LayoutBounds use AutoSize:

Stack Trace:

System.InvalidOperationException: Cannot convert ".5, .5, AutoSize, AutoSize" into Xamarin.Forms.Rectangle
  at Xamarin.Forms.RectangleTypeConverter.ConvertFrom (System.Globalization.CultureInfo culture, System.Object value) [0x000aa] in <filename unknown>:0
  at Sample.MainPage.InitializeComponent () [0x0004b] in <filename unknown>:0
  at Sample.MainPage..ctor () [0x00008] in /Development/Sample/MainPage.xaml.cs:14
  at Sample.App..ctor () [0x00008] in /Development/Sample/Sample.cs:12
  at Sample.iOS.AppDelegate.FinishedLaunching (UIKit.UIApplication app, Foundation.NSDictionary options) [0x00007] in /Development/Sample/iOS/AppDelegate.cs:17
  at at (wrapper managed-to-native) UIKit.UIApplication:UIApplicationMain (int,string[],intptr,intptr)
  at UIKit.UIApplication.Main (System.String[] args, IntPtr principal, IntPtr delegate) [0x00005] in /Users/builder/data/lanes/2506/eb4c1ef1/source/maccore/src/UIKit/UIApplication.cs:77
  at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x00038] in /Users/builder/data/lanes/2506/eb4c1ef1/source/maccore/src/UIKit/UIApplication.cs:61
  at Sample.iOS.Application.Main (System.String[] args) [0x00008] in /Development/Sample/iOS/Main.cs:17

Attached is a sample app that demonstrates the issue.
Comment 1 Drew Lederman 2015-12-15 01:38:57 UTC
Created attachment 14293 [details]
Sample app
Comment 2 René 2015-12-21 07:52:11 UTC
To confirm the issue: it happens in my project too.

Forms version:
Comment 3 René 2015-12-21 07:56:51 UTC
Workaround: use -1 instead of AutoSize