Linq query with delegate does not update a variable

Question

Short question about the code below. Why does it always display 0?

List<string> strList = new List<string>() { "Yes", "No", "Yes", "No", "Yes", "Yes"};
int hitCount = 0;
strList.Select(i =>
{
    if(i.Equals("Yes"))
    {
        hitCount++;
    }
    return i;           
});
Console.WriteLine(hitCount); // always returns 0.
Console.Read();

Answer 1

Basically in your case query is not running, its just a simple Select and retrun, either you have to add ToList() at the end of query to run query actually or you can do something else to run items having value Yes. Using Count is much faster in this case.

int hitcount = strList.Count(p => p == "Yes");

Or use can use Where clause and Count

hitcount = strList.Where(p => p == "Yes").Count();