在一个网站上,我能够登录,然后试图从下拉菜单中选择一个值,但找不到包含该菜单的任何对象。
值得关注的是,该页面似乎正在使用三个框架的窗口-下拉菜单位于其中一个窗口上。
<label for="edit-multiple-form">...</label>
<select id="edit-multiple-form" name="NNN" class="form-select form-control required ajax-processed"> == $0
<option value selected="selected">- Select -</option>
<option value="1"> OPTION1 </option>
<option value="2"> OPTION2 </option>
<option value="3"> OPTION3 </option>
</select>
::after
</div>
VBA代码(已更新):
Sub LogIn()
' ' ' ' '
'when Error
On Error GoTo Err_Clear
' ' ' ' '
'New HTML Document for the page
Dim IE3 As HTMLDocument
Set IE3 = IEBrowser.document
Dim elemSelect As IHTMLElement
Dim elemOption As IHTMLElement
Set elmSelect = IE3.getElementById("edit-multiple-wallet-form")
Debug.Print elemSelect.innerText
Set elemOption = elemSelect.getElementByTagName("option") '@@ it gives me an error
If elemOption.Length > 0 Then
Dim i, text
For i = 0 To elemOption.lengh - 1
text = text & elemOption.Item(i).innerText
Next
MsgBox "All pre elements text: " & text
End If
' ' ' ' '
Err_Clear:
If Err <> 0 Then
Err.Clear
Resume Next
End If
End Sub
================================================ ====================
'Got a new HTML document after log on the the first page
Dim IE3 As HTMLDocument
Set IE3 = IEBrower.document
'then tried several methods to get the object using the following commands
IE3.document.querySelector("option")
IE3.all.NNN.value 'NNN is the name of the dropdown menu object
IE3.getElementsByID("edit-multiple-form)
IE3.getElementsByClass("form-select form-control required ajaz-processed")
================================================ =========================
我能够抓取下拉菜单对象,但在@@仍然出现错误 怎么了 任何帮助将不胜感激。
答案 0 :(得分:0)
( import 'dart:js';).
这应该返回 select HTML元素。然后,您可以进一步缩小范围:
IE3.getElementById("edit-multiple-form")
因此,您可以遍历(对于i = 0到elemOption.length-1)。请注意,getElementById中没有 s ,因为它始终仅返回1个项目。另外,getElementsByClass不是有效的方法,请改用getElementsByClassName。 列出了可用方法的列表here