How is the order of LINQ Query in C#?

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.

How is the order of LINQ Query in C#?

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.

How do I use ascending order in LINQ?

In LINQ, the OrderBy operator is used to sort the list/ collection values in ascending order. In LINQ, if we use order by the operator by default, it will sort the list of values in ascending order. We don’t need to add any ascending condition in the query statement.

What is OrderBy in LINQ?

Sorts the elements of a sequence in ascending order according to a key. OrderBy(IEnumerable, Func, IComparer) Sorts the elements of a sequence in ascending order by using a specified comparer.

What is order by in C#?

In a query expression, the orderby clause causes the returned sequence or subsequence (group) to be sorted in either ascending or descending order. Multiple keys can be specified in order to perform one or more secondary sort operations. The sorting is performed by the default comparer for the type of the element.

How do I order by in Entity Framework?

Method Syntax You can sort on multiple fields using the ThenBy method. By default, they sort the results in ascending order. The sort in descending order you can use OrderByDescending & ThenByDescending methods. Use OrderByDescending to sort in Descending order.

Does IEnumerable preserve order?

IEnumerable/IEnumerable makes no guarantees about ordering, but the implementations that use IEnumerable/IEnumerable may or may not guarantee ordering.

How do I OrderBy in Entity Framework?

How do I get data in descending order in LINQ?

If you want to rearrange or sort the elements of the given sequence or collection in descending order in query syntax, then use descending keyword as shown in below example. And in method syntax, use OrderByDescending () method to sort the elements of the given sequence or collection.

How do I ORDER BY in Entity Framework?

How do I sort by descending in Entity Framework?

You can sort on multiple fields using the ThenBy method. By default, they sort the results in ascending order. The sort in descending order you can use OrderByDescending & ThenByDescending methods. Use OrderByDescending to sort in Descending order.

How do I sort an IEnumerable?

var result = myEnumerable. OrderBy(s => s, StringComparer. CurrentCultureIgnoreCase); Note that, as is usual with LINQ, this creates a new IEnumerable which, when enumerated, returns the elements of the original IEnumerable in sorted order.

What is reverse in LINQ C#?

The LINQ Reverse method is used to reverse the data stored in a data source. That means this method will not change the data rather it simple reverse the data stored in the data source. So, as a result, we will get the output in reverse order.

How do I sort by two columns in Entity Framework?

Try OrderBy(x => x. Col1). ThenBy(x => x. Col2) .

What is default OrderBy in LINQ?

In LINQ, the OrderBy operator is used to sort list/collection values in ascending order. In LINQ, if we use orderby operator by default, it will sort a list of values in ascending order; we don’t need to add any ascending condition in the query statement.

How do I get data in descending order in Linq?

How do you reverse a string in Linq?

First, an input string is converted into a character array using ToCharArray() and then, the Reverse() method is applied to reverse the characters.

  1. private static void ReverseStringWithInbuiltMethod(string stringInput)
  2. {
  3. // using Linq.
  4. var resultstring = new string(stringInput.ToCharArray().Reverse().ToArray());

How do I sort multiple columns in LINQ?

Always make use of ThenBy() after OrderBy() because OrderBy() returns an IOrderedEnumerable which then exposes the methods ThenBy() and ThenByDescending() . This means that we can OrderBy on multiple fields by chaining OrderBy() and ThenBy() together.

What is ThenBy in Linq?

ThenBy Operator Generally, ThenBy method is used with the OrderBy method. The OrderBy() Method, first sort the elements of the sequence or collection in ascending order after that ThenBy() method is used to again sort the result of OrderBy() method in ascending order.

How do I reverse the order of words in a string in C#?

Program

  1. using System;
  2. namespace WordReverse {
  3. public static class Extension {
  4. // This method will be treated as an extension and Static based on the way of call.
  5. public static string[] ReverseWord(this string[] strArray) {
  6. if (strArray is null) {
  7. throw new ArgumentNullException(nameof(strArray));
  8. }

How do I reverse a string without using built in functions?

Reverse A String In C# With And Without An Inbuilt Function

  1. static void Main(string[] args)
  2. {
  3. ReverseStringWithInbuiltMethod(“CSharpCorner”);
  4. }
  5. private static void ReverseStringWithInbuiltMethod(string stringInput)
  6. {
  7. // With Inbuilt Method Array.Reverse Method.
  8. char[] charArray = stringInput.ToCharArray();