に到達するcon.open()
と、エラーが発生します。
Imports System.Data.OleDb
Public Class Form1
Dim con As OleDbConnection
Dim strCon As String = "Provider=Microsoft.ACE.OLEDB.12.0;" & _
"Data Source=C:\testDB.accdb"
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
con = New OleDbConnection(strCon)
con.Open()
MsgBox("con open")
con.Close()
MsgBox("con closed")
End Sub
End Class