Bug 57963 - Using BindingList in DataGridView crashes (TargetException)
Summary: Using BindingList in DataGridView crashes (TargetException)
Status: NEW
Alias: None
Product: Class Libraries
Classification: Mono
Component: Windows.Forms ()
Version: unspecified
Hardware: PC Linux
: --- normal
Target Milestone: Community
Assignee: Bugzilla
Depends on:
Reported: 2017-07-06 02:04 UTC by Leo
Modified: 2017-09-01 11:55 UTC (History)
1 user (show)

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

Program file (2.65 KB, text/plain)
2017-07-06 02:04 UTC, Leo

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Description Leo 2017-07-06 02:04:10 UTC
Created attachment 23318 [details]
Program file

The attached sample program throws exception when running on Centos 6.5 with Mono.
It looks like using base/derived classes to construct BindingList and passing it to DataGridView as a BindingSource makes Mono framework to throw System.Reflection.TargetException. Interestingly first object in the list determines if the exception is going to be thrown or not. If the first object is of base class type everything is fine, if the first object is of derived type the application crashes. For example, in the attached example changing the type of the object to 'Knight' in line 19 makes the application run.