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How can entries be chosen based on a specific property after comparing two lists of the same type?

asked 2021-08-02 11:00:00 +0000

woof gravatar image

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answered 2021-11-14 04:00:00 +0000

huitzilopochtli gravatar image

One way to choose entries based on a specific property after comparing two lists of the same type is to loop through each list and compare the property value of each entry.

For example, let's say we have two lists of Person objects with properties such as name, age, and city. We want to compare the two lists and choose only the entries that have the same city. We can create a new list of Person objects and add entries that meet the condition:

List<Person> list1 = new List<Person>();
List<Person> list2 = new List<Person>();
List<Person> filteredList = new List<Person>();

// Populate lists with Person objects

foreach (var person1 in list1)
{
    foreach (var person2 in list2)
    {
        if (person1.City == person2.City)
        {
            filteredList.Add(person1);
            filteredList.Add(person2);
        }
    }
}

In this example, we first loop through each entry in list1 and then compare its city property value with each entry in list2. If a match is found, we add both entries to the filteredList.

Note that this method only adds entries that match the condition, and it does not remove any duplicates. In some cases, you may want to remove duplicates or prioritize certain entries over others. In those cases, you may need to modify the code accordingly.

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Asked: 2021-08-02 11:00:00 +0000

Seen: 8 times

Last updated: Nov 14 '21