vb.nettab顺序怎么写 _顺序

1.vb net tab page 隐藏和显示代码怎么写见下面的代码
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
TabPage2.Parent = Nothing '隐藏TabPage2
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
TabPage2.Parent = TabControl1 '显示TabPage2
End Sub
End Class
2.vb net tab page 隐藏和显示代码怎么写见下面的代码 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click TabPage2.Parent = Nothing '隐藏TabPage2 End Sub Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click TabPage2.Parent = TabControl1 '显示TabPage2 End SubEnd Class 。
3.vb.net文本框输入后按回车或tab判断是不是数字,不是就跳出提示你用的都是vb6的代码，改成：
Private Sub TextBox1_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox1.LostFocus
【vb.nettab顺序怎么写】If IsNumeric(TextBox1.Text) = False Then
MsgBox（"输入有非数字字符，请重新输入"，vbOKOnly，"友情提示"）
TextBox1.Focus()
Return
End If
End Sub

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