位置：首頁 > 綜合知識 >

vb，nettab順序怎麼寫

綜合知識1.59W

1.vb net tab page 隱藏和顯示代碼怎麼寫

見下面的代碼

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

TabPage2.Parent = Nothing '隱藏TabPage2

End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click

TabPage2.Parent = TabControl1 '顯示TabPage2

End Sub

End Class

2.vb net tab page 隱藏和顯示代碼怎麼寫

見下面的代碼 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click TabPage2.Parent = Nothing '隱藏TabPage2 End Sub Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click TabPage2.Parent = TabControl1 '顯示TabPage2 End SubEnd Class。

3.vb.net文本框輸入後按回車或tab判斷是不是數字,不是就跳出提示

你用的都是vb6的代碼，改成：

Private Sub TextBox1_LostFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles TextBox1.LostFocus

If IsNumeric(TextBox1.Text) = False Then

MsgBox（"輸入有非數字字符，請重新輸入"， vbOKOnly， "友情提示"）

TextBox1.Focus()

Return

End If

End Sub