通过vba选择下拉项。无法访问Iframe。

我想通过Excel宏选择下拉项。我不能通过标记名“ddWareHouse”引用下拉元素,我得到错误。

我想我真的很接近附加代码。但这次我得到了错误运行时错误(70)。拒绝许可

Sub test3()
Dim IE As New InternetExplorer
Dim html As HTMLDocument
Dim test As HTMLIFrame
Dim BaseURL As String
BaseURL="https://some_adress_which_I_cannot_display_because_because.aspx"
Set IE = New InternetExplorer
IE.Visible = True
IE.navigate BaseURL
Do While IE.readyState <> READYSTATE_COMPLETE
Application.StatusBar = "Webpage is loading please wait"
DoEvents
Loop
Set html = IE.document
Set test = html.getElementById("alexIFRAME")
IE.Navigate2 test.src
test.document.getElementById("ddWarehouse").Value = "Lund"
'HERE I GET PERMISSION DENIED ERROR 
End Sub

HTML Code