dotConnect for QuickBooks Online (formerly known as dotConnect for QuickBooks) is an ADO.NET provider for working with QuickBooks data through the standard ADO.NET or Entity Framework interfaces. It allows you to easily integrate QuickBooks data into your .NET applications, and integrate QuickBooks services with widely used data-oriented technologies. dotConnect for QuickBooks Online has the same standard ADO.NET classes as other standard ADO.NET providers: QuickBooksConnection, QuickBooksCommand, QuickBooksDataAdapter, QuickBooksDataReader, QuickBooksParameter, etc.