Check if a particular string is contained in a list of strings

Question

I'm trying to search a string to see if it contains any strings from a list,

var s = driver.FindElement(By.Id("list"));
var innerHtml = s.GetAttribute("innerHTML");

Answer 1

foreach(var str in list)
{
    if (innerHtml.Contains(str))
    {
        // match found, do your stuff.
    }
}

String.Contains documentation

Answer 2

You can do it with LINQ by applying Contains to innerHtml for each of the items on the list:

var matches = list.Where(item => innerHtml.Contains(item)).ToList();

Variable matches would contain a subset of strings from the list which are matched inside innerHtml .

Note: This approach does not match at word boundaries, which means that you would find a match of "One" when innerHtml contains "Onerous" .

Answer 3

You can do this in the following way:

int result = list.IndexOf(innerHTML);

It will return the index of the item with which there is a match, else if not found it would return -1.

If you want a string output, as mentioned in the question, you may do something like:

if (result != -1)
    Console.WriteLine(list[result] + " matched.");
else
    Console.WriteLine("No match found");

Another simple way to do this is:

string matchedElement = list.Find(x => x.Equals(innerHTML));

This would return the matched element if there is a match, otherwise it would return a null.

See docs for more details.

Answer 4

For those who want to serach Arrray of chars in another list of strings

};<\/em> List PlateNo = new() { "13eer", "rt4<\/em> 444", "45566" };