Cannot remove duplicates from a list<string> with Distinct method

Question

I already searched many solutions and couldn't find any that helped me.

I gather data from a iWebElement, add it to a List, convert it to string and later to a List<string> that's when I try to do . Distinct() resulting on nothing.

var h1Heading = driver.FindElements(By.XPath("//h1"));
ListOfKeywords.AddRange(h1Heading);
foreach (IWebElement keywords in ListOfKeywords)
{
   cleaned.Add(keywords.Text);
}
cleaned.Distinct().ToList();

Distinct() returns an ienumerable with no duplicates. you have to assign it to a variable, though, it does not change the original in place - try cleaned = cleaned.Distinct().ToList() — Franz Gleichmann
– Franz Gleichmann, Commented Feb 29, 2020 at 10:09

Mehrdad · Accepted Answer · 2020-02-29 10:23:31Z

2

var mylist = cleaned.Distinct().ToList();

mylist has cleaned items after distinct

answered Feb 29, 2020 at 10:23

Mehrdad

1,74114 silver badges25 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Athanasios Kataras · Accepted Answer · 2020-02-29 10:39:16Z

0

Why not simplify this by doing this:

var h1Heading = driver.FindElements(By.XPath("//h1"));
ListOfKeywords.AddRange(h1Heading);
// Create a cleanup the list and assign it to the cleaned variable
cleaned = ListOfKeywords 
            .Select(l => l.Text) // No need for unessecary foreach
            .Distinct() // Create the distinct IEnumerable
            .ToList(); // Cast it to a new list

answered Feb 29, 2020 at 10:39

Athanasios Kataras

26.7k6 gold badges40 silver badges67 bronze badges

Collectives™ on Stack Overflow

Cannot remove duplicates from a list<string> with Distinct method

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related