You can use the Take method to do something like this: profile = profile.Take(1); Now, when you enumerate profile, you will go through one item only. 5 solved Stop IEnumerable from enumerating through all elements [closed]
Yes you can’t! The IEnumerable generates new Lists every time it is evaluated; it says so right there in your code: .Select(x => new List<int>{x}); When you call Dump(), it is evaluated. When you call First(), it’s evaluated again. Then Dump again. All new Lists! If you evaluate the IEnumerable before putting it in the … Read more
This line … private readonly List<Department> departments = new List<Department>(); … should not be in the function, but outside, at the class scope, or make it a var. 4 solved Why does this code compile in one solution but not in another? [closed]
This how I finally did it foreach (var item in PisterosLista) { var DatosRegistro = new T_Pisteros { PisteroID = item.PisteroID, PisteroN = item.PisteroN }; var num = db.Insert(DatosRegistro); //insert into new DB } solved How to read IEnumerable List values one by one in Xamarin forms?
You have a using System.Linq in the file where you have the extra options. This using brings in several extension methods that help with LINQ (see details on extensions methods here) 0 solved C# Enumerable over a type gives different options (Finding more options in a function) [closed]
When querying a database, I prefer using a IQueryable because the request is sent when data are needed. I mean this var users = (from user in db.Users select user ).AsQueryable(); //it doesn’t load data yet until you write users.ToList(); or users.Count(); solved IEnumreable and IQueryable [duplicate]