DataGridDoubleColumn in DataGrid

I was incorrect on issue 1:

A commit requires pressing Enter (commits but does not move focus). Then tab is required to leave the cell.

This is different from the stock DataGridTextColumn functionality.

Hello,

1. By default, the parts handle the Enter key to commit any changes back up to the associated PartEditBox. We added a new PartValueCommitTriggers.EnterKeyDown configuration option, which can be excluded to disable this functionality. We have also turned this off by default when the PartEditBox derivations are used in the DataGrid. Outside the DataGrid, the functionality will remain unchanged but can be customized as needed.

2. The issue here is that the value was not being committed back up to the associated PartEditBox when clicking another cell. We updated the default value for PartValueCommitTriggers to include StringValueChange, for PartEditBox derivations used in the DataGrid. This will push the value up as the user types, and fixes this issue.

3. Unfortuantely, the hooks used by the DataGridTextColumn are not available for public consumption. Specifically, the DataGridColumn.OnInput method (which DataGridTextColumn uses) is internal, so we can't currently offer the same functionality.

Thanks for reporting these issues.