SeleniumBasic VBA Fastest Loop of WebElements using a WebElement method

问题

I'm noticing a rather long time for an operation to complete.

I'm using the latest SeleniumBasic for VBA to extract data from a table using a ChromeDriver. (https://github.com/florentbr/SeleniumBasic)

I'm retrieving WebElements and looping through them to get the text value.

I'm assigning the text value to an array of type String.

This operation takes quite a long time when I have a large array (1000's of WebElement objects).

Question - What is the fastest way to get all the text values?

Here is my HTML

<table class="Tables_Table_0">
    <caption></caption>
    <thead class="thead-inverse">
        <tr>
            <th class="col-md-4">
                Name
            </th>
            <th class="text-center">
                Time
            </th>
            <th class="text-center">
                Number
            </th>
            <th class="text-center">
                Rate
            </th>
            <th class="text-center">
                Other
            </th>
            <th class="text-center">
                Final
            </th>

        </tr>
    </thead>

    <tbody>
        <tr class="SOME CLASS">
            <td>
                Name Here</a>
            </td>
            <td class="text-center">
                123.000
            </td>
            <td class="text-center">
                5
            </td>
            <td class="text-center">
                8%
            </td>
            <td class="text-center">
                20
            </td>
            <td class="text-center">
                300.00
            </td>
        </tr>
    </tbody>
</table>

Each table row has 6 data points, specified by the td tag. I've cut the snippet to only 1 table row but just imagine having 100+ table rows.

VBA Code

Dim table As WebElement, tableElements As WebElements, tableData() As String, Element
Dim tableIndex As Integer, tableDataCount As Integer

'Get the table
Set table = bot.FindElementByXPath("//*[@id=""Tables_Table_0""]")

'Get the <td> elements
Set tableElements = table.FindElementsByTag("td")

'Assign array size to variable to use later on during loops
tableDataCount = tableElements.Count

'Assign array size            
ReDim tableData(tableDataCount)

'Loop index counter       
tableIndex = 1

'PROBLEM HERE - TAKES TOO LONG WHEN I HAVE A BUNCH OF ROWS IN MY TABLE
'Loop each element and get the Text value            
For Each Element In tableElements
    tableData(tableIndex) = Element.text '
    tableIndex = tableIndex + 1
Next Element

回答1:

After doing some more research, there is an object called TableElement which can be used. This extracts HTML tables almost instantly and dumps it in a two dimensional VBA array.

'Credits to @florentbr 
Private Sub Iterate_A_Table2()
Dim driver As New FirefoxDriver, Assert As New Assert
driver.Get "http://the-internet.herokuapp.com/tables"

Dim tbl As TableElement
Set tbl = driver.FindElementByCss("#table1").AsTable

Dim Data()
Data = tbl.Data
For c = 1 To UBound(Data, 1)
  For r = 1 To UBound(Data, 1)
    Debug.Print Data(r, c)
  Next
  Debug.Print Empty
Next

driver.Quit
End Sub

Credits to @florentbr -

https://github.com/florentbr/SeleniumBasic/issues/33#issuecomment-153500008

来源：https://stackoverflow.com/questions/61028387/seleniumbasic-vba-fastest-loop-of-webelements-using-a-webelement-method

标签

excel

vba

selenium

selenium-webdriver

selenium-chromedriver