Linqpad 63/24/2021
By default, LINQPad automatically imports the following references: System.Have you ever found yourself having to fire up a new instance of Visual Studio and then create a new project just to test a simple C statement With LINQPad, can test C expressions, database queries, and even full programs, in a lightweight code editor.
Linqpad 6 Download The LatestTo get started, download the latest version of LINQPad from their website.I am using LINQPad 6, because it is designed to work with.NET Core. LINQPad for Simple Expressions Suppose you were walking through my C for beginners tutorial series, and you were ready to experiment with using a foreach loop to loop through the elements of an array. You could simply open LINQPad and paste the following snippet as a test program. LINQPad for Console Applications LINQPad obviously works great for testing in simple scenarios where you may want to see certain values printed to the console. However, suppose you want to test a full console program where the user must interact with your application. With LINQPad, you can still use the methods of the Console class that you are already used to, such as Write(), WriteLine(), Read() and ReadLine(). Consider the following example. Console.Write(What is your name: ). Console.WriteLine(Hello, myName); LINQPad with Multiple Methods Recall, when creating a console application, your program starts up by executing the code in the static void Main() method. With LINQPad, you dont usually have to worry about this detail, because the code in the scratchpad will automatically execute. ![]() Doing so will generate a template like the following: void Main(). Linqpad 6 Free To DefineYou are free to define other methods and reference them throughout your program. If you were to recreate the program from the C Reverse String tutorial in LINQPad, you would end up with something similar to the following screenshot. LINQPad with Multiple Classes Not only can LINQPad be used with multiple methods, but it can also be used to test programs with multiple classes. In the Introducing C Collections tutorial, you created an application to manage the books you might have in a library. This program depended on a custom Book class to store such information as the title, author, and publication date. As you can see, LINQPad isnt limited to simple expressions or statements, it can be used to test more complex solutions with multiple methods and classes. LINQPad with LINQ Queries Finally, it is worth giving an example that demonstrates LINQPads ability to evaluate LINQ queries. Recall that LINQ ( L anguage- In tegrated Q uery) can be used to retrieve data from any source by using a uniform syntax involving lambda expressions. This example follows the LINQ syntax tutorial about filtering and sorting C lists. The first thing to note is that it is not necessary to add a using statement to reference the System.Linq namespace. Simply begin writing your code and start using LINQ expressions. You may have also noticed in the previous example that you were able to declare and instantiate a list of books, List, without the need to add a using reference for the System.Collections.Generic namespace. Because LINQ and generic lists are both such common usage scenarios, LINQPad imports them automatically. You can modify the list imported namespaces via the Query Namespace Imports menu.
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