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3 paź 2014 · var firstElement = myList[0]; var secondElement = myList[1]; Starting with C# 8.0 you can use Index and Range classes for accessing elements. They provides accessing from the end of sequence or just access a specific part of sequence: var lastElement = myList[^1]; // Using Index.
17 lut 2012 · If you want to retrieve the item from your list, just use LINQ: PLU item = PLUList.Where(z => z.ID == 12).FirstOrDefault(); But this will return the item itself, not its index. Why do you want the index? Also, you should use class instead of struct if possible. Then you could test item against null to see if the ID was found in the collection.
Get Item In List By ElementAt. ElementAt is very similar to the Indexer for list. ElementAt allows to access an item from the list by an index value. ElementAt is available on any collection type that is an IEnumerable type. ElementAt reads well because it says what it does which is different than the Indexer. So let's look at an example.
13 lip 2022 · When we want to access an element using the index, we are going to use the ElementAt method: var element = capitals.ElementAt(2); The ElementAt method provides us array-like access capability to key-value pairs of Dictionary<string, string>. As with C# arrays, the index of the first element is 0.
30 wrz 2023 · Learn the 2 ways to get a list item by index in C#: using an indexer or a Linq ElementAt() call.
Examples. C# get items from List: List<int> numbers = new List<int> { 1, 2, 3, 4, 5 }; int specificNumber = numbers [2]; // Retrieves the item at index 2. Retrieve elements from List in C#: List<string> colors = new List<string> { "Red", "Green", "Blue" }; string firstColor = colors [0]; // Retrieves the first item in the list.
7 lip 2015 · There is no SQL equivalent (at least a simple way) to get this. Adding the .ToList() you are forcing an immediate execution of the query and bring the results into memory, specifically into a List object. This has a nice easy way to access the data via an index.
