This code sample shows how to connect to a Microsoft Access database file from a C# application using OleDb. It creates an OleDbConnection object, sets the connection string to the Access file location, opens the connection, runs processing code, catches any exceptions during connection, and closes the connection.

1. public void ConnectToAccess() { System.Data.OleDb.OleDbConnection conn = new System.Data.OleDb.OleDbConnection(); // TODO: Modify the connection string and include any // additional required properties for your database. conn.ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;" + @"Data source= C:ocuments and Settingssernameamp;quot; + @"My DocumentsccessFile.mdb"; try{ conn.Open();// Insert code to process data. }catch (Exception ex){ MessageBox.Show("Failed to connect to data source");}finally{conn.Close();} }