协助 MS Access 数据库和 Vb.net 接口连接

Question

I am trying to make a project using MS Access database to take info from interface into database. It does not connect to the database.

This is what I get when I try to populate the database from the program

An unhandled exception of type 'System.Data.OleDb.OleDbException' occurred in System.Data.dIl

This is the coding I am using:

Dim cnn As New OleDb.OleDbConnection

Private Sub FrmStudentReg_Load(sender As Object, e As EventArgs) Handles MyBase.Load
    
    cnn = New OleDb.OleDbConnection
    cnn.ConnectionString = "Provider=Microsoft.Jet.Oledb.4.0; Data Source=" & Application.StartupPath & "\Student_List.accdb"
    
    'Me.Student_DetailsTableAdapter.Fill(Me.Student_ListDataSet.Student_Details)
End Sub

Answer 1

With regards to the connection issue, which is the first question and so the only one that should be addressed here, you are using the wrong provider. The Jet provider only supports old Office formats, which means MDB files for Access. For ACCDB files, you need to use the ACE provider. Unlike Jet, it is not part of Windows, so it needs to be installed. It will be installed as part of Microsoft Office or you can install it as a standalone component. It will need to be installed on every machine you want to run your app on. If that might be a problem, use an MDB file instead.