尝试访问OleDbDataAdapter，参见示例：

insert-datatable-in-access-database [ ^ ]

了解更多： OleDbDataAdapter类 [ ^ ]

Hi,

Please help,
How to copy data from datatable to access database without 'for' loop

Try OleDbDataAdapter for Access, see example:
insert-datatable-in-access-database[^]
Read more: OleDbDataAdapter Class[^]