BaseColumnCollectionChangedEventArgsColumnAdditionDeletionRenameOperations Property

Gets the column addition, deletion, and rename operations. For additions, the OldName field in the tuple is null, and the NewName field contains the name of the added column. For deletions, the NewName field of the tuple is null, and the OldName field contains the name of the deleted column. For renamings, the OldName filed of the tuple contains the old name of the column, and the NewName field contains the new name.

public IEnumerable<(string OldName, string? NewName)> ColumnAdditionDeletionRenameOperations { get; }