Robot Framework（Python）get_webelements返回错误列表的问题求助

Hey, I’ve run into a similar problem with table sorting and element fetching in Robot Framework before—let’s break down what might be going wrong and how to fix it:

1. You’re Not Waiting for the Page to Finish Rendering After Sorting #

When you click the column header to reverse the sort, the table almost certainly needs a moment to re-render the new order (whether it’s reordering existing elements or loading fresh data via AJAX). If you call get_webelements immediately after clicking, you’re probably grabbing the old, pre-sorted elements before the page updates.

Fix this by adding an explicit wait after the click action. Use Robot’s built-in keywords:

• Wait until the first cell in the column changes from its original value (to confirm the sort has applied):

  ${original_first_value}=    Get Text    ${FIRST_COLUMN_FIRST_CELL}
  Click Element    ${COLUMN_HEADER}
  Wait Until Element Text Is Not    ${FIRST_COLUMN_FIRST_CELL}    ${original_first_value}    timeout=10s
  ${sorted_list}=    Get Webelements    ${FIRST_COLUMN_ALL_CELLS}
  

• Or wait for a loading spinner (if your site uses one) to disappear:

  Click Element    ${COLUMN_HEADER}
  Wait Until Element Is Not Visible    ${LOADING_SPINNER}    timeout=10s
  ${sorted_list}=    Get Webelements    ${FIRST_COLUMN_ALL_CELLS}
  

2. Your Locator Isn’t Stable Across Sort States #

Double-check the locator you’re using for get_webelements. Some tables modify element attributes (like data-order or dynamic classes) when sorting, or if your locator relies on row positions that change after sorting, you’ll end up with incorrect elements.

Make sure your locator targets all cells in the first column, regardless of their position:

• Good: //table//td[1] (selects every first cell in each table row)
• Bad: //table/tbody/tr[position() <= 10]/td[1] (rows reordering might break this)

3. Try Fetching Text Directly via JavaScript #

Sometimes, even if elements exist, Robot’s Get Text might not pick up updated values due to rendering quirks. A workaround is to use JavaScript to extract all column text directly from the DOM:

${sorted_texts}=    Execute JavaScript    return Array.from(document.querySelectorAll('table td:first-child')).map(el => el.textContent.trim());

This bypasses potential element state issues and gives you a clean list of sorted values right from the browser’s DOM.

4. Verify Asynchronous Requests Are Complete #

If your table fetches sorted data via an AJAX call (instead of client-side reordering), wait for that request to finish. You can do this by waiting for a loading indicator to disappear, or checking for a specific condition like the total number of rows remaining consistent after sorting.

内容的提问来源于stack exchange，提问作者jeffsia