如何检查GroupBox中是否存在一个对象(在这种情况下我的对象是一个ButtonBox),但是在一个确切的位置。
这样的事情:
If Groupbox1.NameOfButtonBox.location(40,190) exists then
Do my code
end if
我知道语法是完全错误的,但它只是一个例子
答案 0 :(得分:1)
为了将其用于按钮类型而不是按钮的特定实例,您需要检查找到的控件的类型。您还需要确保那里有控件。这是一个函数,它将检查组合框是否包含给定坐标的按钮。
Private Function ButtonExists(ByVal group As GroupBox, ByVal x As Integer, ByVal y As Integer) As Boolean
'No sense checking if there isn't a group box
If group Is Nothing Then
Return False
End If
'Find the control at the given point
Dim ctrl As Control = group.GetChildAtPoint(New Point(x, y))
'If there is a control at that point check to see if it's a button
If ctrl IsNot Nothing AndAlso TypeOf (ctrl) Is Button Then
Return True
End If
Return False
End Function
答案 1 :(得分:0)
查看GetChildAtPoint:
Dim ctrl As Control = GroupBox1.GetChildAtPoint(New Point(147, 96))
If TypeOf ctrl Is Button Then
Dim btn As Button = DirectCast(ctrl, Button)
'Do your code
End If