WebJan 15, 2024 · C# Linq中Select跟SelectMany的区别Select() 和 SelectMany() 的工作都是依据源值生成一个或多个结果值。Select() 为每个源值生成一个结果值。因此,总体结 … WebSep 16, 2024 · Selectメソッドは新しいシーケンス(コレクション)を作成します。. JavaScriptでいうとmap のような動作となります。. これに対して、SelectManyメ …
c# - Difference Between Select and SelectMany - Stack Overflow
WebExample to Understand LINQ SelectMany Projection Method using C#: Let us understand the LINQ SelectMany Method with an example using C#. In the below example, we are … WebВ синтаксисе выражений запроса каждое from предложение (Visual C#) ... Next ' This code demonstrates how to use Select() instead ' of SelectMany() to get the same result. Dim query2 As IEnumerable(Of String()) = petOwners.Select(Function(petOwner) petOwner.Pets) output.AppendLine(vbCrLf & "Using ... how can i say acoustic day6
[C#] LINQ之SelectMany - 腾讯云开发者社区-腾讯云
WebAug 23, 2024 · In previous article, I mentioned Format Code in Visual Studio (With Indentation) but in this article, I have mentioned Select vs SelectMany in C# With an … WebMar 1, 2024 · The issue is, I now need to also include a child array (Urls) of the selected Course when returning the Course array. Something like : public IList GetEmployeeCourses (int id) { var employeeCourses = Context.Employees .Where (e => e.Id == id) .SelectMany (e => e.employeeCourses.Select (ec => ec.Course)) .Include (c … WebMar 6, 2024 · What I'm looking for is an extension method like the following one that is supported by linq query syntax: public static async IAsyncEnumerable SelectMany (this IAsyncEnumerable self, Func> selector) where TCollection : IEnumerable { await foreach (var … how can i save something as a jpeg