Datagrid: 'select all' checkbox remains selected when user uncheck individual rows

[PamyAnnPatrick]

Describe the bug
Data grid 'select all' checkbox remains selected when user uncheck individual rows

To Reproduce
Steps to reproduce the behavior:

1. Go to https://blazority.com/datagrid/multi-selection
2. Click on select all checkbox in the data grid.
3. Uncheck checkbox in individual rows.
   (Select all checkbox still remains selected.)

Environment

• OS: Windows 10
• Browser: Edge
• Blazority Version 0.7.2
• .NET 5

[karan-kang]

Reopening this bug: The current fix when selection changes are made using UI, but does not work if Selection changes are made programmatically (especially in multi-selection mode)

[karan-kang]

Datagrid does not support detecting changes (add/remove/clear) on bounded items.

If the selected items need to be changed programmatically, then modifications must be made on DatagridInstance.SelectionItems property where DatagridInstance can be retrieved using @ref keyword. This is now clarified in the documentation for 0.7.5

[karan-kang]

Reopening as this is still happening in 0.7.7

[karan-kang]

Fixed in v0.8.0