Home/ Questions/Q 3608086
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-18T21:27:27+00:00

This may seem like a silly question but it’s something I’ve never found an

  • 0

This may seem like a silly question but it’s something I’ve never found an answer to.

If I had an array of a class:

public class Folder
{
    public int Id { get; set; }
    public string Name { get; set; }
}

public Folder[] folders = new Folder[] {};

Is there a way to return all instances of ID without looping through and collecting them all?

If there isn’t, what would you consider to be the best way of doing it so that I had an array of integers?

Thanks in advance,

SumGuy

p.s. If anyone can come up with a more appropriate title to this question that would be appreciated as well

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    You would have to loop through them some time in order to get a list of the Ids

    You can get an array of Ids this way:

    int[] Ids = folders.Select(f => f.Id).ToArray();

    (Must be using .NET 3.5 or above – the above performs the loop internally, so it is still looping)

    • 0