Table of Contents
How to OrderBy list in c#?
C# List Sort method
- Sort(Comparison) – Sorts the elements in the entire List using the specified Comparison.
- Sort(Int32, Int32, IComparer) – Sorts the elements in a range of elements in List using the specified comparer.
- Sort() – Sorts the elements in the entire List using the default comparer.
How to sort LINQ?
LINQ includes five sorting operators: OrderBy, OrderByDescending, ThenBy, ThenByDescending and Reverse. LINQ query syntax does not support OrderByDescending, ThenBy, ThenByDescending and Reverse. It only supports ‘Order By’ clause with ‘ascending’ and ‘descending’ sorting direction.
What is diff between IQueryable and IEnumerable?
The principle difference is that IEnumerable will enumerate all of its elements all the time, while IQueryable will enumerate elements, or even do other things, based on a query. The query is an Expression (a data representation of .
Is it possible to convert IQueryable to list?
Not this is not IQueryable . If I have an IQueryable I can simply do a .ToList () to convert it into a list and force the query to actually run on the database, but with the non-generic IQueryable, that method doesn’t exists.
Why doesn’t IQueryable work with tolist?
This is because ToList is inherited from IEnumerable which IQueryable inherits and IQueryable, obviously, doesn’t. So what’s the most efficient way to get an IQueryable to execute the query and give me back a list?
What is the query behavior of orderby?
The query behavior that occurs as a result of executing an expression tree that represents calling OrderBy (IQueryable , Expression >, IComparer ) depends on the implementation of the type of the source parameter.
What is an iorderedqueryable?
An IOrderedQueryable whose elements are sorted according to a key. source or keySelector or comparer is null. This method has at least one parameter of type Expression whose type argument is one of the Func types.