How do I locate an element by its ID in html? The equivalent of getElementByID in JavaScript

[halovski]

  I have found the ID of the tr parent, with a regex. Now I need to go down to the td class = c3 child and click the image inside it. How can I do that when I have its ID? Query selector and Find didnt work for me. Going down 2 children by their ID is the issue.

[rraghvani]

Here's an example based on the following website https://www.w3schools.com/tags/tryit.asp?filename=tryhtml_tr,

function Test()
{
    var page = Aliases.browser.Page("https://www.w3schools.com/tags/tryit.asp?filename=tryhtml_tr").FindElement("#iframeResult")
    // Highlight Month
    var element = page.FindElement("/html/body/table/tbody/tr[1]/th[1]");
    Sys.HighlightObject(element);
    // Highlight $80
    var element = page.FindElement("/html/body/table/tbody/tr[3]/td[2]");
    Sys.HighlightObject(element);
}

It uses XPath to find the element and then highlights it.

[rraghvani]

Another example, to highlight the cell using XPath base on the class name

[halovski]

Can you please just give me an example with this ID:

id="m_img_Edit_5be1669f1f644960a895de91534a50f8"

I tried to write the ID in a few ways and none of them worked. What specifically would I have to write in the FindElement for it to get located?

let img = Aliases.browser.FindElement("id...")

[halovski]

I am currently at 
let tr = Aliases.browser.pagePostbank.FindElement("td[@id='m_img_Edit_5be1669f1f644960a895de91534a50f8']")

Its xpath is /html/body/form/div[3]/control/div/div/div[2]/div/div/div/div[1]/div/table/tbody/tr[15]/td[1]/div/a

I don't know if I have to use the full path or not. Missclicked the solution button sorry about that

[rraghvani · Accepted solution]

Using ID,

will highlight the first row

[halovski]

Thank you so much, my problem was the xpath //tr[@id=.

So I don't start another thread, how can I put my variable inside the xpath like I can do in javascript.

("//tr[@id='My variable here']")

I tried ${} ("//tr[@id='${My variable here}']") like in javascript and that didn't help

[rraghvani]

For example,

var myVar = "m_img_Edit_5be1669f1f644960a895de91534a50f8"
var xpathStr = "//*[@id='" + myVar + "']";
var element = page.FindElement(xpathStr);