Question

您好我刚刚开始学习VB，就像它在VS 2015中一样。我正在使用Bryon Newsome的书Beginning Visual Basic 2015进行练习。我无法从发布商论坛或发布商处获得任何帮助。我设法在之前的练习中修复了这种类型的错误，但无法通过以下方式查看任何内容以进行修复。

以下是第214至215页的代码：

Public Class Form1
    Private Sub btn2Buttons_Click(sender As Object,
    e As EventArgs) Handles btn2Buttons.Click
        If MessageBox.Show("Your Internet connection will now be closed.",
           "Network Notification", MessageBoxButtons.OKCancel,
           MessageBoxIcon.Information, MessageBoxDefaultButton.Button1) _
   = Windows.Forms.DialogResult.OK Then

            lblResults.Text = "OK Clicked"
            'Call some method here
        Else
            lblResults.Text = "Cancel Clicked"
            'Call some method here
        End If
    End Sub


End Class

以下是两条错误消息：

Severity    Code    Description Project File    Line
Error   BC30456 'OKCancel' is not a member of 'MessageBoxButtons'.  MessageBoxButtons   E:\Document\Programing\VB\MessageBoxButtons\MessageBoxButtons\Form1.vb  5

Severity    Code    Description Project File    Line
Error   BC30456 'Forms' is not a member of 'Windows'.   MessageBoxButtons   E:\Document\Programing\VB\MessageBoxButtons\MessageBoxButtons\Form1.vb  7

有一个标签：lblResults，文本属性没有点击

有一个按钮：btn2buttons，文本属性为2个按钮。

Answer 1

If MessageBox.Show("Your Internet connection will now be closed.",
       "Network Notification", System.Windows.Forms.MessageBoxButtons.OKCancel,
       System.Windows.Forms.MessageBoxIcon.Information, System.Windows.Forms.MessageBoxDefaultButton.Button1) = Windows.Forms.DialogResult.OK Then

            lblResults.Text = "OK Clicked"
            'Call some method here
        Else
            lblResults.Text = "Cancel Clicked"
            'Call some method here
        End If

bc30456错误... xxxx不是yyyy的成员

1 个答案: