TYPESCRIPT

c# find one object in list where

var element = myList.Find(e => [some condition on e]);

find a value in list of objects in c#

var item = TextPool.FirstOrDefault(o => o.Name == "test");
if (item != null)
       item.value = "Value";

c# find element in list of list

var element = (from sublist in userList
               from item in sublist
               where item.uniqueidentifier == someid
               select item).FirstOrDefault();

get specific object in list c#

list1[0];