DGV throws IndexOutOfRangeException whenever its datasource is disposed (servicing)

[RussKie]

Fixes #4216

Proposed changes

• Add Dispose event handlers to clear DataSource of DGV and BindingSource of BindingNavigator thereby update their data source actual state

Customer Impact

• A user won't catch the exception when closing a form or disposing a BindingSource

Regression?

• Yes and no. .NET Framework 4.8 throws an exception when closing a form. v.4.7 doesn't throw the exception in this case. But anyway every version throws the exception if to Dispose a BindingSource component

Risk

• Minimal

Screenshots

Before

• A DataGridView doesn't update its Rows and Columns collections after its DataSource is disposed. And the DGV throws the exception when trying to redraw because the DGV is trying to draw items from a DataSource that doesn't already exist (send some index, eg. 4, to the collection that has 0 items, and catch IndexOutOfRangeException)
  

After

• DataGridView and BindingNavigator subscribed on the BindingSource.Disposed event and release their DataSource and BindingSource to update internal collections
  

Test methodology

• Unit testing
• Manual UI testing
• CTI

Test environment(s)

• .NET 6.0.100-preview.1.21101.5
• Microsoft Windows [Version 10.0.19042.804]

Microsoft Reviewers: Open in CodeFlow

[RussKie]

Approved for servicing over email

[codecov]

Codecov Report

Merging #4637 (f23cb3b) into release/5.0 (937b05a) will increase coverage by 0.05801%.
The diff coverage is 100.00000%.

@@                  Coverage Diff                  @@
##           release/5.0       #4637         +/-   ##
=====================================================
+ Coverage     68.27670%   68.33471%   +0.05800%     
=====================================================
  Files             1421        1421                 
  Lines           510713      510837        +124     
  Branches         41580       41584          +4     
=====================================================
+ Hits            348698      349079        +381     
+ Misses          155658      155396        -262     
- Partials          6357        6362          +5     

Flag	Coverage Δ
Debug	68.33471% <100.00000%> (+0.05800%)	⬆️
production	37.70745% <100.00000%> (+0.09841%)	⬆️
test	97.91131% <100.00000%> (+0.00857%)	⬆️

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