Example 1: Returns the first occurrence of item matching the specified predicate.
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using System; using System.Collections.Generic; using System.Linq; class Program { static void Main(string[] args) { var list = new List<int> { 100,200,300,400,500,600,700}; int result = list.Find(x => x > 200); Console.WriteLine(result); Console.ReadLine(); } } |
Output:
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300 |
Example 2: Returns list with items matching the specified predicate.
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using System; using System.Collections.Generic; using System.Linq; class Program { static void Main(string[] args) { var listA = new List<int> { 100,200,300,400,500,600,700}; var listB = listA.FindAll(x => x > 200); Console.WriteLine(listB.Count); Console.ReadLine(); } } |
Output:
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5 |
Example 3: We examine the Exists method on List. Exists returns whether a List element is present. We invoke this method with a lambda expression.
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using System; using System.Collections.Generic; class Program { static void Main(string[] args) { var listA = new List<int> { 100,200,300,400,500,600,700}; bool exists = listA.Exists(element => element > 600); Console.WriteLine(exists); Console.ReadLine(); } } |
Output: True
