VB与SQL连接

Question

当我尝试连接到我的数据库时出错。 我想要做的是检查我的DataBase中的同一行是否有姓名和姓氏

离。 Id_ 1 Michael Dawn

我有2个文本框，如果包含： Textbox1 - 迈克尔 Textbox2 - 黎明

然后这是一场积极的比赛

我收到错误：

需要一些帮助，谢谢 这是我的代码

导入MySql.Data 导入MySql.Data.MySqlClient 公共类Form2

Dim dbCon As MySqlConnection
Dim strQuery As String = ""
Dim SQLCmd As MySqlCommand
Dim DR As MySqlDataReader


Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

    'just a message

    MsgBox(" You are searching for the users: " & vbCrLf & "Name: " & TextBox1.Text & vbCrLf & "Surname: " & TextBox2.Text)


    ' connecting to the database

    dbCon = New MySqlConnection("Server = localhost, Database = users, Uid = root, Pwd = password")
    strQuery = "SELECT users.name, users.surname" & _
        "WHERE users.name =  '" + TextBox1.Text + "'AND password = '" + TextBox2.Text + "'"

    SQLCmd = New MySqlCommand(strQuery, dbCon)

    'Database open

    Try
        dbCon.Open()
        DR = SQLCmd.ExecuteReader

        If DR.HasRows = 0 Then
            MsgBox("Not a match", MsgBoxStyle.Critical)
        Else
            MsgBox("You guessed the correct name: " & TextBox1.Text & "and the surname: " & TextBox2.Text)
        End If


        'Close
        DR.Close()
        dbCon.Close()


    Catch ex As Exception

        MsgBox("Failure to communicate " & vbCrLf & vbCrLf & ex.Message)

    End Try

End Sub

结束班级