Bug 59520 - Dot binding syntax binds to wrong object in ItemTemplate
Summary: Dot binding syntax binds to wrong object in ItemTemplate
Status: ASSIGNED
Alias: None
Product: Forms
Classification: Xamarin
Component: Forms ()
Version: 2.3.4
Hardware: PC Windows
: --- normal
Target Milestone: ---
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2017-09-15 14:21 UTC by Edward Brey
Modified: 2017-09-15 15:20 UTC (History)
3 users (show)

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


Attachments
Repro (60.37 KB, application/x-zip-compressed)
2017-09-15 14:21 UTC, Edward Brey
Details


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Status:
ASSIGNED

Description Edward Brey 2017-09-15 14:21:10 UTC
Created attachment 24774 [details]
Repro

In a ListView ItemTemplate, if you use the dot syntax for a data binding with a data converter, the list item is not always the bound object when Convert is called. Sometimes Convert is called with a value of null, and sometimes it is called with a value of the entire list.

In the repro, the code in Convert expects value of be of type ListItem, which causes it to crash when the cast fails. The iOS and Android projects are not used or included for this repro. I haven't tried them.