Question

如何在单击两个控件处于禁用状态的组合框或文本框后输出消息框。任何方法将不胜感激！谢谢你

Answer 1

您可以使用MouseDown事件形式：

Private Sub Form1_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Me.MouseDown

  If TextBox1.Enabled = False AndAlso _
     e.X >= TextBox1.Left And e.X <= TextBox1.Left + TextBox1.Width AndAlso _
     e.Y >= TextBox1.Top And e.Y <= TextBox1.Top + TextBox1.Height Then
    MsgBox("The textbox is disabled")
  End If

  If ComboBox1.Enabled = False AndAlso _
     e.X >= ComboBox1.Left And e.X <= ComboBox1.Left + ComboBox1.Width AndAlso _
     e.Y >= ComboBox1.Top And e.Y <= ComboBox1.Top + ComboBox1.Height Then
    MsgBox("The combobox is disabled")
  End If

End Sub

单击后，VB NET组合框和文本框响应消息

1 个答案: