How Can I Split a List into Sublists of a Specific Size Using LINQ in C#?

Use Linq to divide the list into a list

In C#, we often encounter situations that need to divide the list into smaller pieces or child lists. One way to achieve this goal is to expand the powerful Linq (language integration query) in C#.

Let's consider the examples you provide. You have a , and you want to create a

or

, so that each generated list contains a certain number of continuous items (for example, 3) in the original list. List<t></t> List<list>></list> To solve this problem with linq, you can use the following code: List<t>[]</t>

This code first groups the elements in the source list based on the result of the

result. This will group them into

public static List<List<T>> Split<T>(IList<T> source, int chunkSize)
{
    return source
        .Select((x, i) => new { Index = i, Value = x })
        .GroupBy(x => x.Index / chunkSize)
        .Select(x => x.Select(v => v.Value).ToList())
        .ToList();
}

blocks. Then, we use the operator to convert each group to the value list, and use the

operator to create a list of a list. chunkSize chunkSize For example, if you have a original list Select, and ToList as 3, then the produced sub -list will be

,

, [a, g, e, w, p, s, q, f, x, y, i, m, c], chunkSize, [a, g, e]. The size of the generated list is determined by the number of items in the original list and the size specified in the group operation. In general, this LINQ -based solution provides an effective method. It can be divided into lists based on index -based separators. The code has been modified to accept the parameters to make it more common. [w, p, s]

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