如何将.mdf数据库连接到vb.net？

Question

我正在尝试将本地.mdf文件连接到vb.net，并且此参数异常弹出“关键字不受支持。参数名称：attachdbfilename”

这是我的代码

Imports MySql.Data.MySqlClient

Public Class Form1

Dim con As MySqlConnection

Private Sub PictureBox1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PictureBox1.Click
    con = New MySqlConnection
    con.ConnectionString = "Data Source=.\SQLEXPRESS;AttachDbFilename=C:\Users\almond\Desktop\TICKETING SYSTEM\TICKETING SYSTEM\Database1.mdf;Integrated Security=True;User Instance=True"
    Try
        con.Open()
        MessageBox.Show("Connected!")
        con.Close()
    Catch ex As MySqlException
        MessageBox.Show(ex.Message)
    Finally
        con.Dispose()
    End Try

End Sub 

Answer 1

问题是您正在使用MySqlConnection ，并且只能与MySql数据库一起使用。 您必须使用SqlConnection ：

Imports System.Data.SqlClient;

Public Class Form1

Dim con As SqlConnection

Private Sub PictureBox1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PictureBox1.Click
    con = New SqlConnection
    con.ConnectionString = "Data Source=.\SQLEXPRESS;AttachDbFilename=C:\Users\almond\Desktop\TICKETING SYSTEM\TICKETING SYSTEM\Database1.mdf;Integrated Security=True;User Instance=True"
    Try
        con.Open()
        MessageBox.Show("Connected!")
       con.Close()
    Catch ex As SqlException
        MessageBox.Show(ex.Message)
    Finally
        con.Dispose()
    End Try

End Sub