how to remove from list using Lambda syntax

Question

Given:

List names = new List(); //list full of names

public void RemoveName(string name) {
   List n = names.Where(x => x         


        

Answer 1

var n = names.SingleOrDefault(x => x.UserName == name)
if(n != null && n.UserName.length > 0)
{
 names.Remove(n);
}

OR

var n= names.Where(x => x.UserName == name).First();
names.Remove(n)

Answer 2

names.RemoveAll(x => x.UserName == name);

Note here that all the lambda syntax does is provide a Predicate<T>; lambda syntax is entirely unrelated to what it ends up doing with the lambda.

Or for a single match (see comments):

var found = names.Find(x => x.UserName == name);
if(found != null) names.Remove(found);

or:

var index = names.FindIndex(x => x.UserName == name);
if(index >= 0) names.RemoveAt(index);