WebSep 21, 2024 · IEnumerable highScoresQuery2 = from score in scores where score > 80 orderby score descending select $"The score is {score}"; Retrieve a singleton value about the source data, such as: The number of elements that match a certain condition. ... Each clause in turn contains one or more C# expressions, and these … WebAny () method. Returns true if at least one of the elements in the source sequence matches the provided predicate. Otherwise it returns false. IEnumerable< double > doubles = new List< double > { 1.2, 1.7, 2.5, 2.4 }; // Will return false bool result = doubles.Any (val => val < 1 ); NOTE: Any () can also be called without a predicate ...
Enumerable.Contains Method (System.Linq) Microsoft …
WebJan 29, 2011 · Since calling Count () will iterate over the entire collection, you can replace this with Any () which will try to iterate over the first object (if its exists). Any () will return true if there are any objects in the IEnumerable since it will return true if it makes it past the first object. The updated code using Any () looks like this: [csharp] WebSep 5, 2024 · Code language: C# (cs) Since this method is returning IEnumerable, if you want to return early, you have to return Enumerable.Empty(). Non-Linq, … irr trong excel
Enumerable.Where Method (System.Linq) Microsoft Learn
WebThe IEnumerable interface is central to LINQ. All LINQ methods are extension methods to the IEnumerable interface. That means that you can call any LINQ method on any object that implements IEnumerable. You can even create your own classes that implement IEnumerable, and those classes will instantly "inherit" all LINQ functionality! WebSep 15, 2024 · In this article. Because the String class implements the generic IEnumerable interface, any string can be queried as a sequence of characters. However, this is not a common use of LINQ. For complex pattern matching operations, use the Regex class.. Example. The following example queries a string to determine the … WebFeb 21, 2024 · IEnumerable is an interface in C# representing a collection of elements that can be enumerated. The IEnumerable interface is defined in the System.Collections namespace.. Here are some essential things to know about IEnumerable,. Enumeration. The primary purpose of IEnumerable is to provide a way to enumerate (loop through) a … irr train law