C# list index

// Get the first item from the list

using System.Linq;

var myList = new List<string>{ "Yes", "No", "Maybe"};
var firstItem = myList.ElementAt(0);

// Do something with firstItem

Source: stackoverflow.com

Get both item and index in c#

// add this to your namespace
public static IEnumerable<(T item, int index)> WithIndex<T>(this IEnumerable<T> source)
{
    return source.Select((item, index) => (item, index));
}

//do something like this

foreach (var (item, index) in collection.WithIndex())
{
    DoSomething(item, index);
}

Source: thomaslevesque.com

C# list any retun indec

public class Item {
	public int Id { get; set; }
	public Item() {}
	public Item(int id) { Id = id; }
}
List<Item> idList = { new Item(1), new Item(2), new Item(3) };
Item[] idLArr = [ new Item(1), new Item(2), new Item(3) ];

Item newItem = new Item(1);

// Using a lambda expression we can do the following query
int index = idList.FindIndex(item => item.Id == newItem.Id);
int arrIndex = Array.IndexOf(idLArr, newItem.Id);

//Then use it like so:
if (index != -1)
{
	// The item exists at index 0!
}

Index list c#

list1[0];

Source: stackoverflow.com

Similar codes

1 vote206 views1 answer
C# find element by condition
C#
0 vote173 views2 answers
Ggplot2 multiple lines geom_line
C#
2 votes198 views2 answers
Validate data exist in database lara vel
C#
0 vote206 views1 answer
Asp.net unregister client script
C#
0 vote199 views1 answer
C# cycle through directory
C#
0 vote210 views1 answer
How to make font c#
C#
0 vote202 views1 answer
C# write to registry hkey_current_user
C#
0 vote211 views1 answer
Create new directory netrw
C#
0 vote222 views2 answers
Get local position unity
C#Unity
0 vote195 views1 answer
C# downloadstirng download old
C#