Simulate click javascript to element by class

Question

I am using execelementasync in c#.

I want to use JavaScript too simulate a click to this button:

<a class="btn confirm" href="#">
  <h5>
    Begin
  </h5>
</a>

My code:

string jsScriptB = System.Xml.Linq.XElement.Parse(@"<js><![CDATA[ document.getElementByClassName('btn confirm').click();]]></js>").Value;
            browser.ExecuteScriptAsync(jsScriptB);

I am really not sure what is going wrong but the button does not click.

Question: How can I click that button using JavaScript

@Adrian sort of it is the chromium cefsharp browser in a windows form — Billy Bob, Jan 03 '18 at 02:10
it could be that you haven't checked to see if DOM is ready. https://stackoverflow.com/questions/9899372/pure-javascript-equivalent-of-jquerys-ready-how-to-call-a-function-when-t — grepLines, Jan 03 '18 at 02:19
@grepLines I'm not sure that's the case. Other code (like document.all(""username"").value = ""testSlash3"";) works, but this code doesn't — Billy Bob, Jan 03 '18 at 02:26
can you do a `console.log(document.getElementByClassName('btn confirm'))` ? — grepLines, Jan 03 '18 at 02:28
@grepLines I have an answer now, it was a silly typo on my part. Anyway, thank you for helping and have a nice night! — Billy Bob, Jan 03 '18 at 02:32

Anirudha Gupta · Accepted Answer · 2019-07-31T11:31:16.540

1

In Javascript document.getElementsByClassName will return a array of HtmlElement so you can't call click on it directly. you need to click on a single element

document.getElementsByClassName('btn confirm')[0].click();

Secondly you are trying to use 2 class in your getElementByClassName which is invalid in first place.

You can better call it like

document.querySelectorAll('.btn,.confirm')

or just call querySelector if there is only one element in your html document. later you can call it like

browser.Document.GetElementById(".btn,.confirm").InvokeMember("click");

edited Jul 31 '19 at 11:31

answered Jan 03 '18 at 02:26

Anirudha Gupta

8,248
8
49
71

thank you, that solves it. I had tried adding [0] based on a similar question but foolishly made a typo and said document.getElementByClassName('btn confirm')[0].click(); (element, not elements). Anyway, thank you! – Billy Bob Jan 03 '18 at 02:31

Simulate click javascript to element by class

1 Answers1