CODEWITHSUNDEEP
c#
user2018756
user2018756

Reputation: 337

Split List into Multiple Lists by Criteria c#

I have a List consisting of the Following Objects

List<Person> PersonList

The Person class

class Person
{
  public int PersonId{get;set;}
  public string PersonName{get;set;
  public int Age {get;set;}
}

I have another List that contains a List of Ages that I am interested in, like 12, 14, 16, 24 etc. 

List<int> AgeList

I want to compare the Age of the PersonList with the ages found in AgeList and IF found, store it in a separate Lists based upon each group. For example People belonging to Age 12 should be in a different List, Age 14 in a different List and So on..

Upvotes: 1

Views: 1270

Answers (3)

tadej
tadej

Reputation: 711

This is some quick code for you, without LINQ. First you create new list of type Person, then loop over your Person list, and for every person you check if age is the same as one in your age list.

List<Person> finalList=new List<Person>();
foreach (var a in PersonList)
{
    foreach (var b in AgeList)
    {
        if (a.Age==b)
        {
            finalList.Add(a);
            break;
        }
    }
}

Upvotes: 1

CodeFuller
CodeFuller

Reputation: 31322

LINQ solution:

List<Person> personAgeList = PersonList.Where(p => AgeList.Contains(p.Age)).ToList();

Upvotes: 1

Boney
Boney

Reputation: 2202

List<Person> data = new List<Person>();
List<int> ages = new List<int>();
List<Person> result = data.Where(p => ages.Contains(p.Age)).ToList();

Upvotes: 1

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