XPath to input element near a label? - html

Question

I am trying to reference a checkbox next to a label of a certain name containing an underscore.
An example DOM looks like
<div id="form-2143">
<div id="wrap-1353">
<label id="numberfield-1234-label">
<span class="x-form-label">admin_user&nbsp</span>
</label>
<input type="checkbox" id="checkbox-1353"
class="form-field" componentid="cb1353">
</div>
...
</div>
The aim is to select the input element so I can click it in Selenium.
The below XPath to my understanding should work
//label[span[contains(string(),"admin_user")]]../input
The problem is that the above works but only with 'admin' not 'admin_user'.
Using just with 'admin' gets multiple results. I can only guess it is to do with the '_' though it could easily be a quirk with the site i am testing.
I also can't guarantee the order of the label and input, hence the go up then down

Answer 1

An underscore (_) requires no special provision in XPath (sub)string testing.
Given your HTML corrected to be well-formed,
<div id="form-2143">
<div id="wrap-1353">
<label id="numberfield-1234-label">
<span class="x-form-label">admin_user </span>
</label>
<input type="checkbox" id="checkbox-1353"
class="form-field" componentid="cb1353"/>
</div>
...
</div>
this XPath,
//div[label[contains(., 'admin_user')]]/input
selects the input element contained within the div that contains a label whose string value contains the substring admin_user.

Answer 2

You have forgotten to make level up again
//label//span[contains(text(),'admin_user')]/../../input
For example: with two examples of "admin_user" and "admin_test"
<div id="form-2143">
<div id="wrap-1353">
<label id="numberfield-1234-label">
<span class="x-form-label">admin_user</span>
</label>
<input type="checkbox" id="checkbox-1353" class="form-field" componentid="cb1353">
</div>
<label id="numberfield-1234-label">
<span class="x-form-label">admin_test</span>
</label>
<input type="checkbox" id="checkbox-1353" class="form-field" componentid="cb1353">
</div>
</div>