Vb.net 显示悬停问题

我有一个简单的表单，上面有一个按钮。在窗体的MouseEnter事件中，我将按钮设置为可见。在窗体的MouseLeave事件中，我将按钮设置为hidden。实际上，只有当您将鼠标悬停在窗体上时，才会看到该按钮。问题是，当您将光标放在按钮上时，它会消失。即使按钮直接位于表单的中心，它仍然表现出相同的行为

除了将MouseEnter/Exit事件放在按钮上以及表单中的所有内容之外，还有其他解决方案吗

Public Class VerticalStrip
    Private Sub VerticalStrip_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
        btnAdd.Visible = False
    End Sub

    Private Sub VerticalStrip_MouseEnter(sender As Object, e As System.EventArgs) Handles Me.MouseEnter
        btnAdd.Visible = True
    End Sub

    Private Sub VerticalStrip_MouseLeave(sender As Object, e As System.EventArgs) Handles Me.MouseLeave
        btnAdd.Visible = False
    End Sub
End Class

---

对,；在

MouseLeave

事件中，首先检查鼠标是否确实离开了窗体：

Public Class VerticalStrip
    Private Sub VerticalStrip_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
        btnAdd.Hide()
    End Sub

    Private Sub VerticalStrip_MouseEnter(sender As Object, e As System.EventArgs) Handles Me.MouseEnter
        btnAdd.Show()
    End Sub

    Private Sub VerticalStrip_MouseLeave(sender As Object, e As System.EventArgs) Handles Me.MouseLeave
        If Not Me.ClientRectangle.Contains(Me.PointToClient(Windows.Forms.Cursor.Position)) Then
            btnAdd.Hide()
        End If
    End Sub
End Class