document.FieldOptions.FieldDatabaseProvider = new OleDbFieldDatabaseProvider();
document.UpdateFields();
 
public class OleDbFieldDatabaseProvider : IFieldDatabaseProvider
{
    FieldDatabaseDataTable IFieldDatabaseProvider.GetQueryResult(string fileName, string connection, string query, FieldDatabase field)
    {
        OleDbConnectionStringBuilder connectionStringBuilder = new OleDbConnectionStringBuilder(connection);
        connectionStringBuilder.DataSource = fileName;
 
        using (OleDbConnection oleDbConnection = new OleDbConnection(connectionStringBuilder.ToString()))
        {
            OleDbDataAdapter oleDbDataAdapter = new OleDbDataAdapter(query, oleDbConnection);
            DataTable dataTable = new DataTable();
            oleDbDataAdapter.Fill(dataTable);
 
            return FieldDatabaseDataTable.CreateFrom(dataTable);
        }
    }
}