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MyClass item = MyList.Find(item => item.name.Equals("foo", StringComparison.InvariantCultureIgnoreCase); This enables your code to ignore special characters, upper and lower case. There are more options.
24 maj 2017 · public static bool TryGetElementByIndex<T>(this List<T> list, int index, out T element) { var e = list.ElementAtOrDefault(index); if (e != null) { element = e; return true; } element = default; return false; }
Searches for an element that matches the conditions defined by a specified predicate, and returns the zero-based index of the first occurrence within the List<T> or a portion of it. This method returns -1 if an item that matches the conditions is not found.
5 lip 2023 · The basic two methods that check the existence of an element or elements in a list are: Contains and Exists. Alternatively, it is also possible to use Count, IndexOf, Find, or Any methods. C# List Contains. The Contains method checks if an element is present in the list. public bool Contains (T item); The method returns a boolean value. Program.cs.
19 lip 2024 · This method searches for an element which matches the conditions defined by the specified predicate and returns the zero-based index of the first occurrence within the range of elements in the List that starts at the specified index and contains the specified number of elements. Syntax
The following example demonstrates the Contains and Exists methods on a List<T> that contains a simple business object that implements Equals. using System; using System.Collections.Generic; // Simple business object.
C# provides two solid ways to access the data by the index. The indexer and the ElementAt function. They work in similar ways but the indexer only works on certain IEnumerable types ElementAt will work on any IEnumerable type which includes a list.
