WebTo check if an element is present in the list, use List.Contains () method. The definition of List.Contains () method is given below. bool List.Contains (int item) If given … WebMar 19, 2024 · The List.Contains () function is used to determine whether an element is present in a list or not in C#. The List.Contains (x) function returns true if the element x is present in the list and returns false if the element x is not present.

C# LINQ: How to use Any(), All() and Contains()

WebDetermines whether an element is in the List. C# public bool Contains (T item); Parameters item T The object to locate in the List. The value can be null for … WebJan 4, 2024 · The basic two methods that check the existence of an element or elements in a list are: Contains and Exists. Alternatively, it is also possible to use Count , IndexOf, … havilah ravula

C# List Collection - TutorialsTeacher

WebFor your above query you can also use Any() and Contains() both , it will work as According to you filter is collection which has Ids and Entity2 both are also collection , so assuming that i wrote this,. query = query.Where(x => filter.Where(a=> a.Entity2.Any(y=> a.Ids.Contains(y.testId)); but in your query also you can remove First() and can use … Web1. Using Enumerable.Distinct Method A simple solution to check if all list items have the same value is to get the distinct elements count in the list using LINQ’s Enumerable.Distinct method. If all elements in the list are the same, then the distinct count would be 1. This is demonstrated below: Download Run Code WebYou can check this by keeping track of each value in a dictionary: adding one for items in the first array, subtracting one for items in the second array and finally checking that all … havilah seguros