This sample shows how to use the SQLite database library from an Excel-DNA add-in.

To try it:

• The sample database needs to be created. Download the file Northwind.Sqlite3.sql from https://code.google.com/p/northwindextended/downloads/detail?name=Northwind.Sqlite3.sql (or from a GitHub export like https://github.com/djhenderson/northwindextended/blob/master/Northwind.Sqlite3.sql)

• Read this .sql into a new database called Northwind.db, perhaps using the sqlite3 command-line utility:

  • sqlite.exe C:\Temp\Northwind.db
  • sqlite> BEGIN TRANSACTION;
  • sqlite> .read C:/Temp/Northwind.Sqlite3.sql
  • sqlite> COMMIT TRANSACTION;

• Create a new C# Class Library project
• PM> Install-Package Excel-DNA
• PM> Install-Package System.Data.SQLite.Core
• Add the code in MyFunctions.cs
• Press F5 to run
• Enter =ProductName(1) in a cell - the result should be "Chai"