Vb.net 禁用按钮后启用按钮

我正在制作一个接受客户订单的程序，该程序的用户不能向listview添加超过10个项目。所以我做了一个计数器，每次他们按下按钮时递增，每次他们按下删除按钮时，它都会从计数器中拿走一个。问题是，当用户按下保存按钮，然后删除该订单时，该按钮不会再次启用

    Private Sub drinkSavebtn_Click(sender As Object, e As EventArgs) Handles drinkSavebtn.Click

        colaCounter.Maximum = 10
        cola = drinkOutput.Items.Add("Cola") 'prints the name of the beverage to the list view
        cola.SubItems.Add(colaCounter.Value.ToString) 'the amount of beverages orders are added through a sub item and converted to a string

        LemonadeCounter.Maximum = 10
        lemonade = drinkOutput.Items.Add("Lemonade")
        lemonade.SubItems.Add(LemonadeCounter.Value.ToString)

        waterCounter.Maximum = 10 'sets the maximum amount of drinks you can order
        water = drinkOutput.Items.Add("Water")
        water.SubItems.Add(waterCounter.Value.ToString)

        fizzyOrangeCounter.Maximum = 10
        fizzyOrange = drinkOutput.Items.Add("Fizzy Orange")
        fizzyOrange.SubItems.Add(fizzyOrangeCounter.Value.ToString)


        drinkSaveBtnCounter += 1

        If drinkSaveBtnCounter = 0 Then
            drinkSavebtn.Enabled = True

        ElseIf drinkSaveBtnCounter = 1 Then 'stops the user from being able to enter more than 10 of one drink
            drinkSavebtn.Enabled = False
        End If
    End Sub

    Private Sub drinkDeleteBtn_Click(sender As Object, e As EventArgs) Handles drinkDeleteBtn.Click
        drinkOutput.Items.Clear() 'clears the items of a table, leaving the columns intact
        drinkSaveBtnCounter -= 1
    End Sub

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在drinkDeleteBtn_单击方法中重置计数器后，尝试添加drinkSavebtn.Enabled=True

Private Sub drinkDeleteBtn_Click(sender As Object, e As EventArgs) Handles drinkDeleteBtn.Click
    drinkOutput.Items.Clear() 'clears the items of a table, leaving the columns intact
    drinkSaveBtnCounter -= 1
    drinkSavebtn.Enabled = True
End Sub

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难道你不启用删除吗？