引用另一个动态创建控件的类中存储在集合中的动态创建控件时出现“Object Required”错误

我使用一个旋转按钮来循环显示某个阶段的日期。当我用索引值从名为customtextboxcollection的集合中调用一个项时,我得到一个“Object Required”错误。数值更改的数字调整按钮和文本框都是动态创建的控件,显示在名为UserForm1的UserForm上。

在单击数字调整按钮之前,在customtextbox集合中创建项目的子项将运行:

Dim customtextboxcollection As Collection
Dim spinbuttoncollection As Collection


Public Sub ComboBox1_Click() 'When a person is selected to enter hours for an employee from a combobox, it triggers the creation of the controls

Sheet1.Activate
CommandButton1.Enabled = True 'Enable the OK and Apply buttons when personnel title is selected.
UserForm1.Label2.Visible = True
UserForm1.ratebox.Visible = True
QuantityLabel.Visible = True
quantitybox.Visible = True

'The variables below are to access the table where I store saved information regarding the project phases I will add hours to.

Dim counter As Integer
counter = 6 'The index of the first row for phases
Dim phasecolumn As Integer
phasecolumn = 3 'The index of the column containing the phases
Dim checkboxnumber As Integer
checkboxnumber = 1 'This is the number needed to distinguish between the checkboxes that appear/disappear.
phasestartcolumn = 4
phaseendcolumn = 5
Dim customtextboxHandler As cCustomTextBoxHandler
Set customtextboxcollection = New Collection 'Sets the previously created collection

Dim spinbuttonHandler As cSpinButtonHandler 'This is my spin button handler class
Set spinbuttoncollection = New Collection 'Sets the previously created collection


'This Do-Loop locates a row on the table with saved information
Do
    If (Sheet3.Cells(savedpersonnelrow, savedpersonnelcolumn) = ComboBox1.Value) Then
        storagerow = savedpersonnelrow
        lastcomboboxvalue = ComboBox1.Value
        Exit Do
    End If

    savedpersonnelrow = savedpersonnelrow + 1

Loop Until (savedpersonnelrow = 82)

Sheet1.Activate

'These sections create the controls depending on the number of phases saved.

Set spin = UserForm1.Controls.Add("Forms.SpinButton.1")

        With spin
            .name = "SpinButton" & checkboxnumber
            .Left = 365
            .Top = topvalue + 6
            .Height = 15
            .Width = 40
            '.Value = Sheet3.Cells(storagerow, savedphasecolumn + checkboxnumber)
            'Sheet1.Activate


            Dim phasestart As Date
            phasestart = Sheet1.Cells(counter, phasestartcolumn).Value
            Dim phaseend As Date
            phaseend = Sheet1.Cells(counter, phaseendcolumn).Value

            spin.Min = phasestart
            spin.Max = phaseend
            spin.Orientation = fmOrientationVertical

            'Do

                '.AddItem Format(phasestart, "mmm-yy")
                'phasestart = DateAdd("m", 1, phasestart)

            'Loop Until (Month(phaseend) = Month(phasestart) And Year(phaseend) = Year(phasestart))

            Set spinbuttonHandler = New cSpinButtonHandler
            Set spinbuttonHandler.spin = spin
            spinbuttoncollection.Add spinbuttonHandler

        End With



Set ctext = UserForm1.Controls.Add("Forms.TextBox.1")

        With ctext
            .name = "CustomTextbox" & checkboxnumber
            .Left = 470
            .Top = topvalue + 6
            .Height = 15
            .Width = 40
            .Value = phasestart

            Set customtextboxHandler = New cCustomTextBoxHandler
            Set customtextboxHandler.ctext = ctext
            customtextboxcollection.Add customtextboxHandler

        End With

topvalue = topvalue + 15
counter = counter + 1
checkboxnumber = checkboxnumber + 1

Loop Until counter = 14

End Sub

在我的名为cSpinButtonHandler的类中,我引用了与它对应的旋转按钮关联的这些customtextboxcollection对象:

Public WithEvents spin As MSForms.SpinButton


Private Sub spin_Click()

UserForm1.CommandButton3.Enabled = True


End Sub

Private Sub spin_SpinDown()

x = 0

Do
    x = x + 1

Loop Until spin.name = "SpinButton" & x

Dim spindate As Date
spindate = customtextboxcollection.Item(x).ctext.Value 'The error occurs here.

customtextboxcollection.Item(x).ctext.Value = DateAdd("m", -1, spindate)

End Sub

为什么此引用会生成错误?引用它的正确方式是什么?