如何将我的.mdf数据库连接到vb.net？

Question

我想我的本地.mdf文件连接到vb.net这个参数异常弹出“关键字不支持参数名：attachdbfilename”

这里是我的代码

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

的问题是您正在使用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