| Class | Description | |
|---|---|---|
 | C1QuickBooksOnlineCommand | C1QuickBooksOnlineCommand contains all the necessary information to fully specify a QuickBooksOnline command and execute it. |
| C1QuickBooksOnlineCommandBuilder | Automatically generates single-table commands used to reconcile changes made to a System.Data.DataSet with the associated database. This is an abstract class that can only be inherited. |
| C1QuickBooksOnlineConnection | C1QuickBooksOnlineConnection represents a connection to a QuickBooksOnline server. The connection can be used to query the data hosted by the server or request modifications. |
| C1QuickBooksOnlineConnectionStringBuilder | This class exposes specific properties to set up a connection for the C1DataConnector QuickBooksOnline provider. |
| C1QuickBooksOnlineDataAdapter | Represents a set of data commands and a connection to a data source that are used to fill the System.Data.DataSet and update the data source. This class cannot be inherited. |
| C1QuickBooksOnlineDataReader | C1QuickBooksOnlineDataReader QuickBooksOnline implementation of DbDataReader. |
| C1QuickBooksOnlineProviderFactory | Represents a set of methods for creating instances of a provider's implementation of the data source classes. |
| OAuthToken | OAuthToken contains access token and refresh token. |