How To Connect Access Database In C# - Microsoft Access Tutorial ✅ - May 2025

How To Connect Access Database in C#

Do you know How To Connect Access Database in C# application? There are several ways to do connect the C# and Access Database. Here are some of the ways.

First before you started, you will need some essential things:
1. At least an access database. In this tutorial, we use Book Library Database.
2. The C# application. You can use VS.net, Windows Visual Studio, or other C# applications.
3. The connectors for data link. The most popular is Microsoft Jet 4.0 OLE DB Provider. If you don't have one, you need to download it first.
4. The code for connecting the database.
Please note that depends on the C# application used for connecting database, the #4 may be not necessary. After you gather (and install) the tools, follow one of the instructions below.

Version 1:

1. This is to create data link. Open notepad, and click save as. Just save it blank, no need to input anything. Named the notepad as anything, but it must end up with .udl file format. E.g. abc.udl.

2. Open that .udl file. It should be something like this picture. Go to Provider tab and Select the desired connector. After that, click Next.

3. In Connection tab, browse the database location. Input the User Name (and password). Hit Ok.

4. The process onwards may be a little different depends on the C# application used. The most common way is to reopen the .udl file to notepad++ or Visual Basic. However, the core is same.

Create the form in C# application. Then, go to the programming window to input the code. Here is one of the code. Please note that there still lots of code that can be used for the connections.

Code To Connect Access Database in C#

Note: change the red box to follow your database locations.

Version 2:

1. Open Microsoft latest Visual Basic. In Toolbox toolbar, click the Data Source.

2. In the first Dialog box, select Database and hit Next. Then, choose the Database Model and hit Next again.

3. In the new page, click new connection. A new pop-up will appear. Click change Data Source. Choose the new Data Source into Microsoft Access Database File. On the bottom, select the data provider and hit OK.

Tutorial How To Connect Access Database in C#

4. A new pop up will appear again. Browse the access database and add username and password befor hit OK.

5. A warning pop up will appear. Click Ok and lastly choose the items in database and click finish.

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