Question

I’m trying to write a simple Lambda expression in C#:

int numElements = 3;
string[]firstnames = {"Dave", "Jim", "Rob"};
string[]lastnames = {"Davidson", "Jameson", "Robertson"};

List<Person> people = new List<Person>();

for(int i = 0 ; i < numElements; i++)
{
    people.Add(new Person { FirstName = firstnames[i], LastName = lastnames[i] });                
}

bool test = people.Contains(p => p.FirstName == "Bob");

My understanding of Lambda expressions and how they work is still a little shady and I miffed as to why this will not work…I’m trying to find out if a list contains a name…

Answer 1

Are you looking for:

bool test = people.Any(p => p.FirstName == "Bob");

Or are you mixing Rob and Bob?