Connecting to InterBase from Visual Studio

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Note: This page describes the old ADO.NET driver, For information and instructions on the new driver refer to the new ADO.NET Driver documentation.

InterBase currently supports an ADO.Net driver that works with InterBase XE, XE3, and XE7 with both 32-bit and 64-bit support.

This topic covers the basic information for connecting to InterBase from Visual Studio:


You will need the following:

  • .Net 2.0 SDK with update
  • Microsoft Visual Studio 2005 or above
  • InterBase XE or above

Installation Instructions

For instructions on running the ADO.Net 2.0 installer, click here.

Usage Instructions

  1. Start Visual Studio 2005/2008.
  2. File new C# Windows application.
  3. Project - Add Reference and add the AdoDbxClient.dll, DbxCommonDriver, DBXInterBaseDriver to your project.
  4. Add a DataGridView component to your Windows form.
  5. The sample code below fills a DataGridView component with the contents of the employee table of the employee.gdb sample InterBase database:

Example Code

This sample code was used with InterBase XE7 and Visual Studio 2013 Ultimate.

Use the code below if you are using .NET 4.0 or above, for .NET 3.5 or below use DbConnection c = factory.CreateConnection(); to instantiate the connection.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Borland.Data;
using Borland.Data.Units;
using System.Data.SqlClient;
using System.Data.Common;
namespace IBXEApplication1
    public partial class Form1 : Form
        public Form1()
        public DbConnection getConnection()
            DbProviderFactory factory = DbProviderFactories.GetFactory
            //DbConnection c = new TAdoDbx{{Product}}Connection();
            DbConnection c = factory.CreateConnection();
            c.ConnectionString = "Database=C:\\Embarcadero\\{{Product}}\\examples\\database\\employee.gdb;User_Name=sysdba;Password=masterkey";
            return c;
        public void ReadData(DbConnection conn)
            string sql = "select * from employee";
            DbCommand cmd = conn.CreateCommand();
            cmd.CommandText = sql;
            DbDataReader myreader = cmd.ExecuteReader();
            dataGridView1.DataSource = myreader;
            DataSet ds = new DataSet();
            DataTable dt = new DataTable("employee");
            ds.Load(myreader, LoadOption.PreserveChanges, ds.Tables[0]);
            dataGridView1.DataSource = ds.Tables[0];
        private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)