Check if element(s) count>0 in Selenium using Linq in C#

Question

I have id's like follows:

id='vat-code-A'

id='vat-code-B'

id='vat-code-c'

id='vat-code-D'

I want to check if the above element(s) count>0, which can be done using a for each loop. But, is there a way to perform the above requirement with Linq as below.

 var codes = new List<string>() { "A", "B", "C", "D" };
 var vatElement = Driver.FindElements(By.Id($'vat-code-{codes .Select(x=>x)}"));                    
        if (((vatCodeElement.Count()) > 0) == true)
        {                
            return true;
        }

dotnetfiddle.net/nZkoi5 ... By.Id("id='vat-code-System.Linq.Enumerable+WhereSelectListIterator``2[System.String,System.String]") doesn't make much sens — Selvin
– Selvin, Commented Jan 22, 2019 at 11:58

Mehrdad Dowlatabadi · Accepted Answer · 2019-01-22 12:47:23Z

1

You can use :

var codes = new List<string>() { "A", "B", "C", "D" };
var elements = codes.Select(c => driver.FindElements(By.Id("vat-code-" + c))).ToList();
if (elements.Select(x=>x.Count).Sum()>0)
 {
      // return true    
 }

or you can use SelectMany :

var elementsCount = elements.SelectMany(x => x).Count();
if (elementsCount > 0)
{
   // return true             
}

if you want to all elements be present you can use :

var codes = new List<string>() { "A", "B", "C", "D" };
var elements = codes.Select(c => driver.FindElements(By.Id("vat-code-" + c))).ToList();
if (elements.Where(x => x.Count > 0).Count()==4)
 {
      // return true    
 }

edited Jan 22, 2019 at 12:47

answered Jan 22, 2019 at 12:10

Mehrdad Dowlatabadi

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4 Comments

Easwar AB Over a year ago

Thanks for the answer @Mehrdad. Correct me if I am wrong! If one of the elements is missing, this will still pass, I think. I should have asked my question with clarity. If I change the above code to if (elements.Select(x=>x.Count).Sum()>4) { // return true } Will it confirm the presence of all the four elements?

Mehrdad Dowlatabadi Over a year ago

"If one of the elements is missing, this will still pass?" Yes

Mehrdad Dowlatabadi Over a year ago

you want to all elements be present?

Easwar AB Over a year ago

Yes. I should have mentioned it. Sorry

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