F#

Great Reads

by Dmitri Nеstеruk

Let's create a simple project estimation DSL using F#!

by Tomas Petricek

The Real World Functional Programming book explains essential concepts of this paradigm using examples in C# 3.0 and F#. In this article we look at immutability, which stands behind the clarity of functional programs.

Class-less Coding - Minimalist C# and Why F# and Function Programming Has Some Advantages

by Marc Clifton

Not very classy in C#, but pretty classy in F#.

An Object Explorer Written in a Map/Filter style with C# Partial Application Functions

by Marc Clifton

Among other things, an exploration into writing C# code in a functional programming style.

Latest Articles

Embracing Functional Programming in C#

by Nicolas DESCARTES

How to embrace functional programming in C#

K-means using F#

by Gaston Verelst

How to use F# to implement algorithms such of k-means

.NET 6 - New Features

by koolprasad2003

What's new in .NET 6

Overriding JSON Serializer in Giraffe

by Bohdan Stupak

Way to leverage custom serializer in Giraffe framework

All Articles

top

F#

.NET 6 - New Features

29 May 2022 by koolprasad2003

What's new in .NET 6

.NET6

.NET Configuration File Corrupts On Write

9 Nov 2021 by Member 12660776

Programmatically Adding New ConfigurationSectionGroup Corrupts Declaration Section With Multiple Group Declarations.

2D Character Design With F# And GDI+

2 Nov 2015 by Farhad Reza

We will design two interesting characters in this tip. The first one is Code Project Bob sticker and the second one is Magpie bird which is the national bird of Bangladesh.

A Developer's First Look at Visual Studio 2010

19 Sep 2009 by jebarson

New features of Visual Studio 2010 discussed

A Look under the hood of the .NET Framework

11 Feb 2013 by Sander Rossel

Journey to the center of the .NET Framework with a chance of IL along the way!

A Simple Overview on How Pattern Match Compiles

4 Jan 2013 by colinfang

This article investigates how Pattern Match compiles under the hood in a number of simple common scenarios.

A Simple Parser That Converts HTML from OneNote to Markdown

14 Jan 2013 by colinfang

OneNote2Markdown converts the html generated from OneNote to Markdown format, which can then be translated to a cleaner normalized html by any online Markdown parser later.

Agile software development methodologies and how to apply them

30 Dec 2013 by Monjurul Habib

Introduction to Agile software development methodologies and how to apply them. It is about how to work together to achieve a common goal. This article focus on how technology team work together well to plan, build and deliver software.

Agile software development, steps to work with Requirements, Estimation and Planning

1 Jan 2014 by Monjurul Habib

The hardest single part of building a software system is deciding precisely what to build. Everybody in software development has the same goal: Rapid, Reliable, Low Risk delivery of high-quality, valuable functionality to users. This article will help them to achieve their goal.

An Idea of F# Workflow Engine based on Concurrency and Coordination Runtime

20 Feb 2009 by Vitaliy Liptchinsky

This article describes the basic ideas of how to build workflow engine a-la WF based on F# workflows and CCR

An Object Explorer Written in a Map/Filter style with C# Partial Application Functions

26 Jun 2017 by Marc Clifton

Among other things, an exploration into writing C# code in a functional programming style.

.NET

Dev

Analyzing profiling data from vsperfcmd

17 Jan 2013 by Mattias Högström

Building a viewer and analyzing profiling data reports from vsperfcmd.

.NET

Dev

Basics of Dataflow Programming in F# and C#

3 Sep 2010 by Vitaliy Liptchinsky

This article introduces dataflow programming and provides basic implementations of dataflow variables in C# and F#

.NET

Dev

Big O Algorithm Analyzer for .NET

16 Feb 2010 by dawright, ProtoBytes

A heurisitc graphing tool to help discover 'Big O Notation' function thru infinite asymptotic's and instrumentation.

BigInteger Square Root in F#

19 Oct 2011 by rickoshay

Determine the square root of a BigInteger using F#

Building a Sudoku Solver in F#

3 Jun 2011 by Cyborgx37

A simple F# application that solves Sudoku puzzles. Links to helpful resources are also provided.

C# Events: Create class events and use that class

26 May 2008 by popnadrian

Educational article about C# events

C# object[,] into F#

2 Jul 2012 by tagad

Hi, what would be the closest equivalent F# code to a C# array of objects?Example:In C# I would create:object[,] tableA = new object[30,2];tableA [0, 0] = "dog";tableA [0, 1] = 2;tableA [1, 0] = "cat";tableA [1, 1] = 31;and so on ....In F# I could createlet...

C# object[,] into F#

2 Jul 2012 by Sergey Alexandrovich Kryukov

In this particular case, you can use array2D:http://msdn.microsoft.com/en-us/library/ee620670.aspx[^].See also the section "Multidimensional Arrays" in the documentation page on F# arrays:http://msdn.microsoft.com/en-us/library/dd233214.aspx[^].—SA

C# object[,] into F#

2 Jul 2012 by tagad

A possible way to do it is let myArray2D : obj[,] = Array2D.create 2 2 (box()) myArray2D.[0,0]

C# Open Source Managed Operating System - Quick View Under the Hood

3 Jul 2011 by Chad Z. Hower aka Kudzu

A quick view under the hood of Cosmos and how it works

Calling F# from COBOL and Back Again

9 Jan 2010 by alex turner

Showing how Micro Focus Managed COBOL can call F#, and some tips on mixing imperative and functional languages the easy way.

.NET

Dev

Architect

Calling F# sharp from C# in .net4.0

10 Aug 2010 by SureshSuri

How we can call F# functions from C# coding.

Calling F# sharp from C# in .net4.0

10 Aug 2010 by R. Giskard Reventlov

Start here: Call F# code from C#[^].Google is your friend.

Calling F# sharp from C# in .net4.0

19 Dec 2010 by Stefan Savev 2

1) Add a reference FSharp.Core dll in your project2) Reference Microsoft.FSharp.Core namespace in your code using FS = Microsoft.FSharp.Core;3) Implement your function, for example:public static IEnumerable map(FS.FSharpFunc mapper, IEnumerable...

Can I use DLL in C# application that is made in F# or java? If it is possible than how?

11 Aug 2018 by NBhalodiya

I have one dll that is build in f# or java for calculator application and I want to use it in C# application. That is possible if yes than how? What I have tried: I just want to know if this possible than how How to reference and use that dll or jar file.

Java

DLL

Can I use DLL in C# application that is made in F# or java? If it is possible than how?

11 Aug 2018 by OriginalGriff

JAR files you can't access directly - they are Java installation files and would normally be run under the Java Runtime Environment to add an application to your system. C# files can't use these directly. F# is a .NET language, so you can use it's assemblies directly as if they were written in...

Java

DLL

Chess Piece Design In F#

23 Oct 2015 by Farhad Reza

This article describes the use of GDI+ in F# to design chess game pieces.

.NET

Windows

GDI+

Class-less Coding - Minimalist C# and Why F# and Function Programming Has Some Advantages

7 Aug 2017 by Marc Clifton

Not very classy in C#, but pretty classy in F#.

.NET

Dev

Coding Challenges Framework

10 Jul 2015 by darrellp

A framework for easily solving programming challenges from competitive coding sites

Compiling the first F# program using interactive mode

18 Oct 2008 by Shivprasad koirala

Compiling the first F# program using interactive mode

Computational Types in C# and F#

2 Aug 2012 by Marc Clifton

Exploring the concept of Computational Types in both C# and F#

Converting Video with FFmpegCore

23 Feb 2021 by Bohdan Stupak

A simple snippet of how you can convert video in .NET Core

Conway's Game of Life with F# and SDL.NET

4 Feb 2011 by Scott Philip Brown

This is an implementation of Conway's Game of Life using F# and SDL.NET

game

Database Driven Website, C# front-end F# back-end meaning?

21 Jun 2012 by Member 8336910

Hi I am an intern working with ASP.NET.My current task is to make a website which will incorporate some jquery viewing features. This project seems to me will be primarily dealing with reading data from a database and making graphs out of them. This will require me to make custom queries...

Database Driven Website, C# front-end F# back-end meaning?

21 Jun 2012 by db7uk

I too am a little confused regarding the front and back end language choice.The only thing I can think of is that you could have a website written in C# and maybe a class library / service (more likely service) that is F# providing functional aspects to the site.In terms of asynchronous...

Deeply Nested JSON Deserialization Using Recursion and JavaScriptSerializer

28 Apr 2015 by Hassan Alrehamy

JSON Deserialization in depth concept and Dictionary mapping. Special Thanks to Dr. Coral Walker

Delayed Dependency Resolution the Right Way

1 Mar 2016 by SneakyPeet

Delayed dependency resolution the right way

Dependency Injection with ObjectPoolManager (OPM)

31 Oct 2010 by NavnathKale

Lightweight and simple

Develop Your Own Operating System in C# or VB.NET

12 Aug 2010 by Chad Z. Hower aka Kudzu

Develop your own operating system using C# (or VB.NET, etc.) and Visual Studio!

DocMounter 2: A tool to build VS.NET documentation (now with Sandcastle)

15 Nov 2010 by 10Tec, Sergey Gorbenko

Tool for creating MS Visual Studio documentation files - XML Summaries, HxS/MSHC help solutions and manuals.

Does F# compiler optimize multiple calls to pure functions?

26 Aug 2014 by Enrique A. Casanovas Pedre

I have noticed that when I call a function multiple times with the same arguments, all of them immutable, in the same scope, the compiler does not save the result of the first call to be used as the result of the other calls. The function neither change nor depend on any outside state. The...

.NET

Does F# compiler optimize multiple calls to pure functions?

26 Aug 2014 by Sergey Alexandrovich Kryukov

Please confirm that I understand your question correctly; look at my comment to the question.Here is my idea: at the level of the compiler, it's really hard to do this optimization. In some cases, the compiler does not have enough information. Consider there is a way to figure out that the...

.NET

Draw newton's fractal in F#

2 May 2018 by Member 13795231

Hello, I am facing a problem with drawing Newton's fractal for f(x) = x^3 - 1 using F# The problem is that my program seems to draw only the down right 1/4 of the fractal and nothing else. Since the actual drawn area is correct, I take it as the problem might be with the bitmap representation on...

Bitmap

Dynamic Code Integration with CodeDom

23 May 2008 by Crawfis

While there are many expression evaluators out there, the CodeDom framework allows you to take any .NET langauge and link a code snippet at run-time.

Easy Immutable Objects in C#

30 Nov 2015 by Hideous Humpback Freak

Using an F# library for immutable objects reduces required code by an amazing amount. Additionally, it eradicates error prone maintenance.

Eliza like chat bot in F# language for fun

8 Jul 2010 by rmortega77

Eliza like chat bot in F# for having fun learning the functional programming language shipped with Visual Studio 2010.

Embedded Scripting using F#

22 Aug 2011 by Vladimir Ivanovskiy

This article shows how to compile and run F# code during runtime.

Embracing Functional Programming in C#

1 Feb 2024 by Nicolas DESCARTES

How to embrace functional programming in C#

.NET

functional

End-to-end Testing of Your Web Applications with Canopy

14 May 2018 by Bohdan Stupak

This article will introduce to you canopy - selenium-based end-to-end testing framework that uses F#.

.NET

Dev

Exploring Amazon S3 with F#

15 Jul 2010 by Vagif Abilov

The article demonstrates how to explore the Amazon S3 API using F# and achieve great results just in 45 minutes.

.NET4

.NET

Dev

Extensible Monitoring Solution

23 Oct 2012 by barry brunswick

An entry in the Intel App Innovation Contest

cloud

Windows

Dev

Extract List of Codes of Windows-Messages from WinUser.H

23 Feb 2014 by Saeed Masoumy Rad

F# 14: Recursion

4 Apr 2014 by Sacha Barber

Recursion in F#

F# 15 : Code Organization (Modules / Files/ Types)

9 Apr 2014 by Sacha Barber

Now that we have some of the basic types and pattern matching under our belts, I thought it high time that we learnt a bit about how to organize our own code. Throughout some of the posts we have already been through I have been referring to modules such as the “List module”. In this […]

F# 1: Hello World

10 Mar 2014 by Sacha Barber

Hello World in F#

F# 2 : FSI Environment

10 Mar 2014 by Sacha Barber

FSI environment in F#

F# 21 : Events

22 May 2014 by Sacha Barber

We continue our OO journey, and this time we look at events within classes.

F# 28 : Integrating With Task Parallel Library

22 May 2014 by Sacha Barber

Last time we looked at the Async class, and examined some of its core functions. This time we will be looking at using some Task Parallel Library (TPL) classes, namely Task, and Task. We will also examine how the Async module can be used in conjunction with TPL.

F# 30: Type Providers

21 May 2014 by Sacha Barber

Type providers in F#

F# 5 : Operators

4 Mar 2014 by Sacha Barber

Operators in F#

F# 6 : Tuples

5 Mar 2014 by Sacha Barber

Tuples in F#

F# 7: Records

7 Mar 2014 by Sacha Barber

So we continue our journey into more of the F# types. This time we will be looking at Record types.

F# 8 Discriminated Unions

12 Mar 2014 by Sacha Barber

Discriminated unions in F#

F# 9: Option Types

13 Mar 2014 by Sacha Barber

Option types in F#

F# Asyncronous Programming

27 Jul 2010 by User 5722857

Async programming in functional languages such as F# is such a breeze....

.NET

Dev

F# example usage of option types

4 Feb 2012 by VallarasuS

F# example usage of option types

F# for Beginners Series

1 May 2014 by Sacha Barber

F# for beginners series

F# Get Value from Cell from Selected Row in DataGridView

19 Oct 2015 by Member 12070797

Hello,I have a little problem with my program in F#. I have a data in my DataGridView - about 10 rows. I would like to get a data from selected rows as "event for click the button" (exactly i want to get value from cells(0) from this selected rows) but a dont know how i can do this. I dont...

DataGridView

F# Get Value from Cell from Selected Row in DataGridView

19 Oct 2015 by Member 12070797

Hello,I try,try and try and at last resolve my problem. I give solution maybe will be useful to someone - i use below code to display necessary data:let mutable zmienna1 = "pusta"for e in DataGridViewRezerwacje.SelectedRows do zmienna1

DataGridView

F# List

5 Dec 2011 by Ganesan Senthilvel

F# List

All-Topics

f# list sum with negative numbers

11 Nov 2014 by Member 11224598

I thought that i made right solutiuon for my problem but i was wrong.I must calculate sum of every elements in list after last negative number or if in the list i have only positive claculate sum for all elements.code what i have done : Unfortunalety i must do it without recusion using...