WebJun 8, 2024 · Sometimes, when looping over a collection of elements in C#, you need not only the items itself, but also its position in the collection. ... How to get the index of the current element in a foreach loop? The … WebUsing an indexer, or using Linq ElementAt, are 2 ways to get a list item by index in C#. Search. Login Join Us. 0 Products Dofactory .NET #1 .NET Success Platform. Dofactory …
find value at list index c# code example - lacaina.pakasak.com
WebExample 1: c# get index of item in list Array.IndexOf(arrName, searchingFor) Example 2: c# list any retun indec public class Item { public int Id { get; set; } publi WebAdd a comment. 56. Sure, it's pretty easy: var index = list.Select ( (value, index) => new { value, index = index + 1 }) .Where (pair => SomeCondition (pair.value)) .Select (pair => pair.index) .FirstOrDefault () - 1; That will return the index if it finds anything matching, or -1 otherwise. The +1 and -1 is to get the behaviour for the case ... oxidizer hazard pictogram
c# - LINQ - Fetch items from list starting from specific index
WebMay 28, 2015 · Now you can access the index from the menu item clicks. private void contextMenuStripDelete_Click(object sender, EventArgs e) { listBoxFiles.Items.RemoveAt(_selectedIndex); } No need to recalculate the selected index and to test for -1. The context menu is not opened at all if the index is -1. WebNov 13, 2010 · Select source + its index. Add condition to the where clause (the source of the where clause now contains the original source + index) Select the index (the index returned here is the original index from the original source) var indexes = inputList.Select ( (input, index) => new { input, index }).Where (a => condition (a.input)).Select (a => a ... WebJun 12, 2024 · You can use the IndexOf () method to get the index of a given element of your List<>. However, note that since a linked list implies no random access, there really isn't any other way to find a specific element (and consequently its index) other than starting from the beginning and checking one element at a time. Share Improve this answer Follow jefferson county indiana jail