Devart.Data.QuickBooks 3.2.100

Advanced C# Connection Provider for QuickBooks Online

dotConnect for QuickBooks Online is a high-performance ORM enabled data provider for QuickBooks Online that builds on ADO.NET technology. It enables access to QuickBooks Online financial data in .NET applications through standard SQL queries—no QuickBooks API expertise required.

The provider works with .NET Frameworks, .NET Core, .NET.

It supports a wide range of QuickBooks Online-specific features, including a powerful local SQL engine with SQL-92 support, full CRUD operations, complex JOIN queries, and others. Package provides advanced Visual Studio integration and convenient visual component editors to simplify component tweaking.

More information at dotConnect for QuickBooks Online.

Installation

1. Install the NuGet Package

Install-Package Devart.Data.QuickBooks

2. Activate license

• Free Trial License: Evaluate the full capabilities of dotConnect for QuickBooks Online in a non-commercial environment—ideal for development and testing. Start your free trial
• Commercial License: Deploy dotConnect for QuickBooks Online in commercial applications and access full technical support with a valid license. Purchase a license

Work with EF Core

For projects, using Entity Framework Core with QuickBooks Online, install the Devart.Data.QuickBooks.EFCore package.

Compatibility

The following table show which version of this package to use with which version of frameworks.

More information here

Key Features

• SQL Access Without API Complexity: Query and manipulate QuickBooks Online data using standard SQL statements—no need to learn the QuickBooks REST API. Use complex JOINs, WHERE conditions, aggregate functions, and more.
• Full CRUD Operations: Perform INSERT, SELECT, UPDATE, and DELETE operations on QuickBooks entities such as invoices, customers, accounts, and transactions through familiar SQL syntax.
• Full ADO.NET Compatibility: 100% compliant with ADO.NET standards, supporting key interfaces such as DbConnection, DbCommand, DataSet, and DataTable for seamless integration into .NET applications.
• Powerful Local SQL Engine: Built-in SQL-92 compliant engine enables advanced query capabilities beyond what the native QuickBooks Online API exposes.
• ORM Support: Works with Entity Framework Core, NHibernate, and Dapper, enabling code-first and model-first workflows with QuickBooks Online data.
• OAuth 2.0 Authentication: Secure connectivity to QuickBooks Online using OAuth Interactive or Refresh Token authentication—no credentials stored in plain text.
• Broad Platform Compatibility: Fully compatible with .NET Framework, .NET Core, and .NET, including ASP.NET Core, Blazor, and .NET MAUI.
• Visual Studio Integration: Accelerate development with data source connection wizards, database object explorer, and schema management tools—all embedded in Visual Studio.
• Reliable Security: Advanced encryption and authentication ensure secure access to your QuickBooks Online data.
• Priority Support and Continuous Improvement: Backed by dedicated technical support and regular updates that deliver security enhancements, feature improvements, and long-term stability.

Usage

To help you get started quickly, here's a simple code example demonstrating how to connect to QuickBooks Online.

using Devart.Data.QuickBooks;

namespace QuickBooksConsoleApp
{
    class Program
    {
        static void Main(string[] args)
        {
            string connectionString = "Authentication Type=OAuthInteractive;" +
                                    "License key=**********;";

            try
            {
                using (QuickBooksConnection quickBooksConnection = new QuickBooksConnection())
                {
                    quickBooksConnection.ConnectionString = connectionString;
                    quickBooksConnection.Open();

                    Console.WriteLine("Connected to QuickBooks Online successfully.");

                    quickBooksConnection.Close();
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            Console.ReadKey();
        }
    }
}

Basic Connection Strings

For more detailed tutorials, API reference, and advanced examples, visit our Getting Started guide.

Related Packages

• Devart.Data.QuickBooks.EFCore

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