C # datatable Deletes the row delete and remove issues

When a DataTable deletes a row using delete, only the row is marked as deleted, but it still exists, a DataTable is required to get the number of rows with Rows.Count, or to delete the previous number of rows. The AcceptChanges () method submits the modification, and the Remove method is deleted directly.
If you delete a row in a For loop, it is best to use the Delete method or copy a DataTable, or the count change will occur, and then use the AcceptChanges () method to commit the changes and delete the lines marked deleted.

C # datatable Deletes the row delete and remove issues