WebTo convert a dictionary with a list to an IEnumerable in C#, you can use LINQ's SelectMany method to flatten the dictionary and convert each key-value pair to a … WebThe LINQ ToDictionary Method in C# is used to create a System.Collections.Generic.Dictionary from the System.Collections.Generic.IEnumerable according to the specified key selector. This method causes the query to be executed immediately. There are four overloaded …
How to convert an IEnumerable<> to List<> - UiPath …
WebMar 8, 2024 · convert list to ienumerable Awgiedawgie using Linq; IEnumerable enumerable = Enumerable.Range (1, 300); List asList = enumerable.ToList (); View another examples Add Own solution Log in, to leave a comment 0 0 Phoenix Logan 44215 points List list = new List (); return list.AsEnumerable (); Thank you! 0 0 0 WebJun 24, 2015 · GetEnumerator () returns the enumerator. One important point to understand here is that collections don't iterate themself. It is basically done by an enumerator and the sole purpose of an IEnumerable is to supply an enumerator to the collection. However, foreach works for all the collections. holiday to rome expedia
How to convert Foreach statement into linq expression?
WebIf you're using Generic version IEnumerable, The conversion is straight forward. Since both are generics, you can do like below, IEnumerable values = Enumerable.Range(1, 10); List valueList = values.ToList(); But if the IEnumerable is null, when you try to convert it to a List, you'll get ArgumentNullException saying Value … Web我需要填寫數據庫表中的下拉鍵和值。 我在做什么. Dictionary states = resultSet.Tables[0].AsEnumerable() .ToDictionary(row => row.Field(0), row => row.Field(1)); //Add the list item states.Add(0, "Select State"); //Sort the dictionary to set the "0" item at the top var sortedStates = (from entry in states orderby entry.Key … WebIt means that you do not have to convert or cast anything. You don't need to convert it. List implements the IEnumerable interface so it is already an enumerable. This means that it is perfectly fine to have the following: public IEnumerable GetBooks() { List books = FetchEmFromSomewhere(); return books; } as well as: holiday to sharm el sheikh