2024 C# list contains all of another list

C# list contains all of another list

Author: jcmv

August undefined, 2024

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 … WebJan 25, 2013 · There is probably a simple one-liner that I am just not finding here, but this is my question: How do I check if an ArrayList contains all of the objects in another ArrayList?

List .Contains(T) Method (System.Collections.Generic)

WebYou don't actually need LINQ for this because List provides a method that does exactly what you want: Find. Searches for an element that matches the conditions defined by the specified predicate, and returns the first occurrence within the entire List. Example code: PricePublicModel result = pricePublicList.Find(x => x.Size == 200); WebMar 5, 2016 · 3 Answers. Sorted by: 18. You can just use following LINQ expression: List1.Where (p => p.Cats.Any (c => List2.Any (c2 => c2.ID == c.ID))); You should also be able to do that with intersect (That is if your classes have their Equals methods overriden to check for matching IDs - see Intersect on MSDN ): christina boutrup kæreste

List .Contains(T) Method (System.Collections.Generic)

WebSep 5, 2024 · 1. With the "without LINQ" condition removed, possible duplicate of Most efficient way to compare two lists and delete the same. Not all that different from Find if listA contains any elements not in listB, Use LINQ to get items in one List<>, that are not in another List<>, or Difference between two lists. – Lance U. Matthews. WebOct 4, 2024 · t2.All (elem => t1.Contains (elem)) called All (=>Contains) I have varied 3 params: count of supersets length of subset variability in items All supersets were random length and contained items in range [0; Variability). Subsets had fixed length and contained items in range [0; Variability). WebFeb 28, 2024 · The ways to do this is by using a combination of Any and All. You need to check if all the elements of wordsToFind are substring of any elements in StringList bool result = wordsToFind.All (word => currentObject.StringList.Any (str => str.Contains (word)); This is for one object out of the list of Objects. You can again apply All to that list. geraldine howard obituary

c# - If a list of object has matching elements from another list

c# - Find items from a list which exist in another list - Stack Overflow

WebThis method determines equality by using the default equality comparer, as defined by the object's implementation of the IEquatable.Equals method for T (the type of values in the list). This method performs a linear search; therefore, this method is an O ( n) operation, where n is Count. WebAug 29, 2013 · The first approach uses a loop: bool isFound = false; foreach (item1 in list1) { if (list2.Contains (item1)) { isFound = true; break; } } The second one uses Linq directly: bool isFound = list1.Intersect (list2).Any (); The first one is long to write and not very straightforward/easy-to-read. christina bowers norfolk vaWebApr 2, 2013 · c# - Find items from a list which exist in another list - Stack Overflow Find items from a list which exist in another list Ask Question Asked 10 years ago Modified 2 years, 7 months ago Viewed 93k times 53 I have a List PropA { int a; int b; } and another List PropX { int a; int b; } christina bourne md

"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 … " - C# list contains all of another list

C# list contains all of another list

c# - How to find if an element of a list is in another list? - Stack ...

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 element is present in the list, then List.Contains () returns True, else, it returns False. Example 1 – Check if Element is in C# List using Contains () WebThis method determines equality by using the default equality comparer, as defined by the object's implementation of the IEquatable.Equals method for T (the type of values in …

Did you know?

WebMar 31, 2015 · How to find a string is already present in a list.For example i have a list that contains data now if i want to write the data in to another list during this i want to keep a condition whether the string is already present in the list.I am using the below code but its not working can you kindly help me C# WebSep 12, 2013 · The basic answer is: you need to iterate through loop and check any element contains the specified string. So, let's say the code is: foreach (string item in myList) { if (item.Contains (myString)) return item; } The equivalent, but terse, code is: mylist.Where (x => x.Contains (myString)).FirstOrDefault ();

WebApr 7, 2024 · I have a model with list items: public class Student{ public int StudentId { get; set; } public int ClassId { get; set; } } The table values are similar to the following: StudentId ClassI... WebMar 30, 2015 · How to find a string is already present in a list.For example i have a list that contains data now if i want to write the data in to another list during this i want to keep …

WebJun 20, 2024 · List.Exists (Predicate) Method is used to check whether the List contains elements which match the conditions defined by the specified predicate. Properties of List: It is different from the arrays. A list can be … WebNov 5, 2024 · 3 I want to check if one list contains all the elements of another list, for example: (a,b,c,d) contains (c, a, d) = true (a, b, c, d) contains (b, b, c, d) = false I tried things like this: static bool ContainsOther (IEnumerable a, IEnumerable b) { return new HashSet (a).IsSupersetOf (new HashSet (b)); }

WebFeb 1, 2009 · 12 Answers Sorted by: 476 With LINQ, and using C# (I don't know VB much these days): bool b = listOfStrings.Any (s=>myString.Contains (s)); or (shorter and more efficient, but arguably less clear): bool b = listOfStrings.Any (myString.Contains);

WebOct 9, 2024 · Syntax List.ContainsAll ( list as list, values as list, optional equationCriteria as any) as logical About Indicates whether the list list includes all the values in another list, values. Returns true if value is found in the list, false otherwise. An optional equation criteria value, equationCriteria, can be specified to control equality testing. geraldine house milltownWebMay 21, 2024 · Let's clear up any confusion you have related to the LINQ methods Any(), All() and Contains(). They're extremely useful for querying (asking questions about) your data. I'll first explain how they work at a high level and then give an example of each one. Important: All three of these methods return a boolean (true/false). Your result will ... christina bourgesWebMay 28, 2013 · C# Check if a List is a part of another List [duplicate] Ask Question Asked 9 years, 10 months ago. Modified 4 years, 6 months ago. ... Determine if a sequence contains all elements of another sequence using Linq. Check whether an array is a subset of another. Share. Follow edited May 23, 2024 at 12:09. christina boutrup mandWebAnd I have a list of objects which looks like this. class Object A{ string id; string Name; } How can I find all the objects which has matching list of strings. I tried: listOfA.Where(x … christina boueyWebDec 12, 2013 · So I have two lists: One of ObjectB (ListObjectB) and Another contains a list of id's of ObjectA (called ListOfIdsA). If this i want to get a list of ObjectB where ObjectB.ListOfObjectA is in the ListOfIdsA. My first (and wrong) approach was ListObjectB.Where (p=> ListOfIdsA.Contains (p.ListOfObjectA.Select (b=>b.Id))) geraldine hosny hermitage christina bovier realtorWebAnd I have a list of objects which looks like this. class Object A{ string id; string Name; } How can I find all the objects which has matching list of strings. I tried: listOfA.Where(x => listoFstrings.Contains(x.id)).Select(); But it is not working, it is pulling all the other objects which doesn't have a matching string. geraldine high school montana