A cross-platform, data connectivity library for connecting to QuickBooks Online in your .NET applications.
The .NET QuickBooks Online data connector is part of ComponentOne Data Services.Download Free Trial
Create Data-Oriented Apps Faster
Get fast and direct access to QuickBooks accounting services with less of the complexity through a unified interface for querying against all supported data sources.
Manage Data More Efficiently
Integrate financial data from QuickBooks Online into your custom applications without relying on additional software. This empowers end-users to manage data more efficiently and gain better insights.
Connect to OData from Any Platform
The DataConnectors library is built against .NET Standard from the ground up so it's supported across Windows, Mac, Linux, and mobile device platforms.
With full Visual Studio 2019 and Visual Studio 2022 integration, you can quickly and easily connect to your QuickBooks Online data sources. Connect to QuickBooks through the Server Explorer, without writing a single line of C# or VB.NET code, and then drag tables on the dataset designer, and connect data-aware controls like grids, charts and report designers.
ADO.NET and Entity Framework Core Support
Connect to QuickBooks Online data using standard ADO.NET objects and Entity Framework Core. The data connector uses ADO.NET objects to make it easy to set up a connection.
OAuth Authentication Support
The QuickBooks data connector library supports the open standard authentication protocol, OAuth 2.0, to help you protect your data through a secure connection.
SQL and LINQ Query Support
Query against QuickBooks Online data using most standard SQL syntax including joins queries, functions, and summaries. It also has in-built support for LINQ queries for native .NET data queries.
Batch CRUD Operations
The data connectors support CRUD operations such as inserting, updating and deleting data through Command and DataAdapter objects. You can further optimize network performance by performing batch updates.
Fast Cache with Incremental Updates
With built-in caching you can improve performance by using a local cache database for repeat operations. It also supports incremental updates so that only new or modified records get synced to the cache.
With scaffolding support, the QuickBooks data connector library can generate model classes and a database context for Entity Framework Core. The scaffolding command can be run from Visual Studio.
While the QuickBooks.NET C# data connector focuses primarily on connecting and querying, you can use it alongside other .NET Standard and .NET Framework components to do much more.
Desktop DataConnectors Explorer
If you have a QuickBooks Online account you can explore it through our DataConnectors Explorer on Windows by downloading the desktop Demo Explorer.
OLAP Invoice Report
See how to connect to various data sources, including QuickBooks, in this web demo for our cross-platform data connectivity library.