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Introduction to D3DImage

by Dr. WPF

.NET 3.5 SP1 is here! It's time to break out your DirectX skills. This article provides the information necessary to get started using a new DirectX interop feature in WPF called D3DImage.

Cryptographic Interoperability: Keys

by Jeffrey Walton

Import and export Cryptographic Keys in PKCS#8 and X.509 formats, using Crypto++, C#, and Java.

Custom Controls in Win32 API: Scrolling

by Martin Mitáš

How to support scrolling within your controls.

XColorSpectrumCtrl - a non-MFC color picker control that displays a color spectrum

by Hans Dietrich

XColorSpectrumCtrl displays a color spectrum that allows user selection, and provides APIs for color based on RGB and HSL color models.

Latest Articles

How to Master Any Programming Language

by Hawkynt

This article provides a clear, structured plan to help you navigate the learning of a new programming language effectively, dividing your knowledge into manageable levels.

Implementing gRPC with C++

by Matt Scarpino

This article explains how to code applications that rely on gRPC to transfer data using protocol buffers.

Simplifying .NET Application Logging: Seamless Integration with Azure Log Analytics and CI/CD Automation

by Daan Acohen

Learn how to simplify .NET application logging by integrating with Azure Log Analytics and automating the process using GitHub Actions.

C# in Browser via WebAssembly (without Blazor)

by Nick Polyak

In this article I describe how to write C# code that runs in Browser.

All Articles

Dev

Create & Populate Time Dimension with 24 Hour+ Values

5 Sep 2013 by Mubin M. Shaikh

Create time dimension with 24 hour plus values and time buckets in your data warehouse

SQL-Server-2008

SQL-Server-2005

Prefer using Stream to byte[]

12 Apr 2023 by Bohdan Stupak

A short example of how byte[] misuse may hurt memory consumption

7 Simple Steps to Make healthcare.gov Website Faster

27 Oct 2013 by Murali Pamidi

Politics aside, here are 7 simple tweaks that could make heathcare.gov website instantly fast.

Auto-bind byte[] to asp:Image

23 Aug 2012 by Vitaly Tomilov

Simplest and quickest way to automatically bind array of image bytes to asp:Image object.

Using the jQuery Unobtrusive Validator with Twitter Bootstrap Tooltips

21 Jul 2014 by Cristian Moldovan

jQuery unobtrusive validation plugin with Twitter Bootstrap 3 showing error messages as tooltips

Visual Studio 2010 WAS painfully slow

19 Mar 2012 by NuttingCDEF

VS2010 *was* painfully slow - now fixed!

File Upload using WCF REST API and JavaScript

28 Jul 2014 by lusgon

Uploading a file using WCF REST API and JavaScript

Real-Time Web App Made Simple with MVVM Pattern over SignalR - Part 1

15 Jul 2017 by dsuryd

SignalR is great for building real-time web functionality. MVVM is great for developing your front-end. What if they can be used together? This tip will show how to do just that, using as example a simple project to do live chart on a web browser.

A C++ Code Function Tracing Class

9 Apr 2024 by PJ Arends

Trace your function calls to the Output window.

Download of file with open/save dialog box

1 Oct 2013 by Erika Chinchio

In this article I will explain how to automate the process of downloading files with the open/save dialog box, protected by authentication.

WIA Scanner in C# Windows Forms

4 Jul 2014 by Chakravarthi Elchuri

How to use WIA supported scanner using C#

OperationResult Class in Support of Multiple Return Values from a Method

14 Dec 2015 by Darek Danielewski

Sometimes, you just must return multiple values from a method. Instead of specifying out or passing arguments by reference, consider an OperationResult class.

C# Poisson Cumulative Distribution for large Lambdas

8 Apr 2020 by Gunnar S

Implementation of the Poisson Cumulative Distribution function for large Lambdas

Easy to Use Parallel foreach, that can be Magnitudes Faster than the .NET Version

10 Jul 2018 by Viktor Kovács

Parallel foreach loop implementation for nested loops

parallelization

Rename a Database and its MDF and LDF files in SQL Server

13 Mar 2012 by Tecfield

This tip shows how to rename a database and its MDF and LDF files in SQL Server.

SQL-Server-2008

SQL-Server-2005

Autosuggest TextBox from database column in Windows Forms

19 Apr 2012 by Deepak_Sharma_

This article will show how to create an auto-suggest TextBox that will suggest data from a SQL Server database column.

How to create an easy plugin-system in C#

15 Feb 2013 by Dread_Sharp

How to build an easy plugin system with C# which only takes about 30 lines of code!

StartsWith comparison for searching in Azure Tables

27 Jun 2014 by Sergiy Korzh

How to make search by StartsWith criteria in Azure Tables

Pure HTML5/CSS3/JS Panel and Splitcontainer in .NET Style; JQuery Not Needed

13 Nov 2016 by veen_rp

Some templates for HTML5, CSS3 and pure JS to create .NET style panels and splitcontainers, using CSS classes for docking. Pure HTML/CSS/JS solution, JQuery not needed.

Forgotten C# language features: implicit operator

26 Feb 2013 by Jeffrey T. Fritz

A throw-back to a .NET 1.1 feature to use instead of writing an extension method.

Creating a Simple "scratch card" Control in WinForms

21 Oct 2015 by OriginalGriff

A simple "scratch card" like control for Winforms, where the user can reveal the image by "scratching off" a cover

Introduction to C# on ReactOS

19 Feb 2019 by Steffen Ploetz

How to compile and run the first C# application in ReactOS

Adding INotifyPropertyChanged to Entity Framework Classes

14 Dec 2014 by MarkLTX

Automatically implement INotifyPropertyChanged for every property in Entity Framework 6.0 entity classes

Getting Started with MahApps.Metro

16 May 2015 by Mark Heath

Learn how to get started with MahApps.Metro, an open source library for giving your WPF applications a modern look and feel.

Make Buzzer (Internal Speaker) Sound in Windows 7/8/10 32bit / 64bit

14 Jan 2022 by Andreoli Carlo

In our company, we find ourselves in need of using the internal PC (buzzer) on Windows7 64bit. At the end, we figured out how to do it.

ASP.NET Core Web API, Multiple Get or Post Methods with Single Controller

10 Jun 2016 by TheForceIsSharp

ASP.NET Core Web API, Multiple Get or Post methods with single controller

A WPF CheckBox ListBox

11 Oct 2017 by Clifford Nelson

This tip presents a way to display checkboxes for selection of ListBox Items instead of the default highlighting

LookAheadEnumerator: Implement Backtracking in Your Parsers

23 Dec 2019 by honey the codewitch

Easily implement efficient backtracking capabilities over any enumeration

jQuery Autocomplete, MVC4, and WebAPI

19 Aug 2013 by luivis7

A simple example of how to use jQuery Autocomplete to make an AJAX call to WebAPI in an MVC4 application.

IP Location

9 Dec 2013 by dietmar paul schoder

How to get the location of a specific IP-address

Auto Updating the exe from a network location when application starts

27 Jan 2015 by SREENATH GANGA

Auto updating the exe if the latest exe is available in the network share

Introduction to Windows 10 IoT

11 Feb 2016 by Martin Gmuca

A brief introduction to Windows 10 IoT development

Simple Way to Convert HTML Table Data into PHP Array

25 Jan 2016 by Garbel Nervadof

Convert HTML table data from a website into PHP array

How to Create Custom Paging for a Crystal Report Viewer

11 Jan 2019 by akshay_zz

This article will provide you the alternative way to navigate page in a crystal report viewer, as default paging looks broken

Introduction to OpenGL with C/C++ on ReactOS

10 May 2021 by Steffen Ploetz

Check whether ReactOS is able to run OpenGL, determine a convincing IDE and get started with the OpenGL on ReactOS.

A Few Missing Methods on BinaryReader

23 Apr 2021 by honey the codewitch

BinaryReader needs a better way to read strings and types. Here's a quick and dirty fix

A Butterworth Filter in C#

22 Apr 2016 by Darryl Bryk

C# code for a low-pass Butterworth filter is presented

signal-processing

Yet Another Fully Functional ownerdraw Menu

23 Jan 2020 by Steffen Ploetz

Another fully functional ownerdraw menu with minimal effort - this time based on Win32, with icons instead of bitmaps, with accelerators and tested for ReactOS and WinNT 4.0 to Windows 10

Copy/Synchronize Table Data between databases

16 Mar 2012 by Anurag Gandhi

A Query to copy an individual table data between databases

SQL-Server-2008

SQL-Server-2005

Using Font Icons

12 Aug 2013 by Le Sourcier

This tip helps in using font icons as ImageSource.

Working with Keyboard Events and their Codes in JavaScript

14 Sep 2014 by Afzaal Ahmad Zeeshan

How to use the keyboard events of the user and use them to dynamically change the User Interface or to perform some actions

Simple simulation of load balancing

11 Mar 2015 by Ivan Yakimov

In this article I'll explain how to make something similar to load balancer on your single developer machine.

Section Handles Enumeration. Extending File Unlocking

19 May 2015 by Yohamnes Hernandez

How to free blocked files, inclusive if they are mapped in memory. Something that many tools are missing.

Create a Drop Down Calculator Opens like DateTimePicker

24 Jun 2015 by Nadun Liyanage

This tip describes creating a user control to display a drop down calculator that pops out like the DateTimePicker in Visual Studio

Number Only Behavior for WPF

1 Oct 2015 by Clifford Nelson

Presents a behavior to prevent entry of anything but digits into a control

Get a Collection of All Running Excel Instances

26 Nov 2016 by JamesFaix

Get a collection of all running Excel interop Application objects (not just the active one)

WPF Disabled Items Behaviour

6 Aug 2016 by Clifford Nelson

This tip presents a way to have disabled items in your ComboBox

SelectedItems Behavior for ListBox and MultiSelector

26 Sep 2017 by Clifford Nelson

A behavior that allows the developer to bind an IList to SelectedItems of a ListBox or MultiSelector.

What is a Coroutine?

19 Mar 2020 by honey the codewitch

Learn how to use a powerful programming technique for multitasking in your projects

A Tip to Get MFC Support for Console Application in Visual Studio 2019

26 Mar 2021 by Southmountain

Some quick configurations to get MFC support for console application

Creating Custom WPF Icon Button

26 Apr 2020 by Omnia Hussain

A walk-through for creating a custom WPF button that contains both icon and text

How to integrate Facebook, Twitter, Linkedin in Android Apps

12 Sep 2012 by 3PillarLabs

This article help users to integrate Facebook, Twitter, Linkedin, MySpace functionality easily in Android apps.

Passing Object Collections to ASP.NET Web API

16 Jan 2014 by Tom Glick Philadelphia, US

POC to demonstrate passing of collections of complex objects to ASP.NET Web API Controllers.

Find the Intersection Point of Two Line Segments

9 Jan 2015 by Kristian Lindberg Vinther

An implementation of a line segment intersection algorithm

Many Questions Answered at Once — Collaboration between Windows Forms or WPF Windows

26 Mar 2015 by Sergey Alexandrovich Kryukov

Popular question on Forms collaboration, also answered for WPF

Proper, Translatable Pluralization in .NET with MessageFormat

12 Apr 2015 by Jeffijoe

Writing properly formatted, grammatically correct, translatable UI messages

High Cohesion & Low Coupling using SOLID Principles -- Part 1

20 Jun 2015 by vaid_sumit

Achieving Low Coupling & High Cohesion by applying SOLID principles

Executing Stored Procedure with User Defined Table Type Parameter in Entity Framework Using EntityFrameworkExtras

26 Sep 2015 by AshishShukla6

This tip describes step by step implementation of executing stored procedure having user-defined table type as a parameter in entity framework using EntityFrameworkExtras package.

SQL-Server-2012

SQL-Server-2014

Very Friendly Enum Binding In WPF

11 Jan 2016 by hesido

A super simple method for listing Enum members in WPF using databinding

Allocating Memory in C/C++: How to Avoid Memory Mismatched Allocation/Deallocation Issues Detected by Intel® Inspector XE for Visual Studio 2015

1 May 2017 by Arthur V. Ratz

This tip/trick introduces the basic ideas on how to avoid memory mismatched allocation/deallocation issues detected by Intel® Inspector XE for Visual Studio 2015

How to Check If a String is Literal in Compile-time (C++)

30 Sep 2017 by Alexander Lednev

How to check if a string is literal in compile-time (C++)

Geometric Primitives for OpenGL

9 Mar 2021 by Steffen Ploetz

Box, cylinder, cone and sphere construction for OpenGL with texture and light effects

computational-geometry

Desktop Screen Capture on Windows via Windows Desktop Duplication API with Drawing of Cursor's Image

2 Aug 2016 by Evgeny Pereguda

Simple article about using of Desktop Duplication API for capture desktop screen WITH image of cursor

Batch Processing with Directory.EnumerateFiles

12 Aug 2023 by Bohdan Stupak

Batching is a nice technique that allows you to handle big amounts of data gracefully. Directory.EnumerateFiles is the API that allows you to organize batch processing for the directory with a large number of files.

Encoding / Decoding 7 bit User Data for SMS PDU (PDU Bit Packer)

10 Oct 2012 by Lama Barri

A library for packing / unpacking 7bit user data for SMS according to the GSM 03.38 standards.

BackgroundWorker Helper using Lambda Expressions

8 Jun 2012 by Clifford Nelson

You can implement BackgroundWorker using Lambdas without any sort of helper class very easily.

Amazon AWS: Setting up FTP on EC2 Windows Instances

15 Jun 2012 by Timothy Svecz

Amazon AWS: Setting up FTP on EC2 Windows Instances

Resolve DesignMode for a User Control

26 Aug 2012 by Wendelius

The tip shows one way to resolve if a user control is in design mode.

WPF ExceptionViewer

2 Oct 2012 by MarkLTX

A WPF window for displaying exceptions, nested inner exceptions, and their properties using a tree and rich text.

Custom serialization for ExpandoObjects in ASP.NET WebAPI

5 Dec 2012 by tumbledDown2earth

Using dynamic or ExpandoObject is a breeze to dynamic data WebAPIs, but when serializing to XML, it can cause a brain damage sometimes :)

Recover IIS When ApplicationHost.config is Ruined

2 Aug 2013 by Zhuyun Dai

Introduce how to recover IIS when it is broken by bad editing to applicationHost.config

Using Table variable instead of Cursor Variable

3 Nov 2013 by S. M. Ahasan Habib

I will explain here how to use table variable and over come cursor limitation

Sort listview Columns and Set Sort Arrow Icon on Column Header

21 Mar 2014 by sagar_253

Listview column sort and set sort column icon (ascending/desceding)

Generate SPA Web App Instantly in Minutes

22 Oct 2014 by Kalvin Lawrence Ernst

Generate a web app instantly, directly from a database(SQL Server)

Dynamically Sized Struct

6 Nov 2014 by Orjan Westin

Simplifying the use of dynamically sized C structs

Polynomial class with FindRoots method

15 Jan 2015 by Super Lloyd

All the tools to calculate Distance to Bezier curve, find the root of Polynomial, do Complex math

How to Sort a Table in ASP.NET and MVC

26 Feb 2015 by Shridhar Gowda

This tip will explain how to sort a table / GridView on an ASP.NET or MVC(AngularJs) application. I am demonstrating both client side and server side sorting. I am sure you will have a great knowledge on this topic after reading it.

Geolocation wifi Scanner and Finder

2 Apr 2015 by Dr Gadgit

Written in C# and VS2010 as a class libary to be used in your own project.

Calculating Permutation without Recursion - Part 2

7 Apr 2015 by perspolis

Calculating permutation in a non-recursive way

Multi Threaded PowerShell Cookbook

12 Apr 2015 by Shining Dragon

A look into how we can achieve multi threading in our Powershell scripts

Yes, You Can Move TFS 2013 WorkItems Between Projects! But, your TFS Warehousing will Break, and Microsoft Support will No Longer Talk to You.

19 Jan 2018 by ergohack

This roguish way of moving a WorkItem, directly 'in-place', through SQL leaves all of the previous data associations intact, but portends issues with future major updates and current TFS Data Warehousing.

Visitor with the Return Value

14 Oct 2015 by Petr Kirjat Valasek

This technique allows the Visitor (i.e., an instance of Visitor design pattern) to return value of arbitrary type.

DMath is DirectXMath for All

5 Mar 2017 by Jose A Pascoa

Part 1 - Using DMath from C#

Simple Behavior to Allow Zooming and Dragging a Contained Control

16 Aug 2017 by Clifford Nelson

This is a simple behavior that can be attached to a ContentControl and allows zooming and dragging the Content.

WPF Behavior to Ensure a ToggleButton/CheckBox is Selected

4 Apr 2018 by Clifford Nelson

This behavior will require that for any Group of ToggleButton/Checkbox controls that are associated together, the user cannot set all to not IsChecked.

JsonConverter Attribute in ASP.NET Core 3.0 Web API

22 Oct 2019 by YasIkeda

ASP.NET Core 3.0 uses a built-in JSON converter from System.Text.Json so that JsonConverter attribute from Newtonsoft.Json does not work by default.

A Generic Circular Buffer in C#

6 Feb 2020 by honey the codewitch

A circular buffer implementing IList

Poor Man's Vector Drawing

2 Mar 2021 by Tomaž Štih

Sometimes you need to draw a simple glyph.

Clear All Events Listeners of an Instance or Static Event

29 Sep 2021 by benji_dv

How to clear all events is quite simple. It needs a finger of reflection...

WPF DatePicker Background Fix

6 Jun 2012 by Clifford Nelson

A little trick that will more completely fill the DatePicker background from the code-behind.

Creating a WCF Service with JSON Data and Using it on iOS

31 Mar 2013 by Melih Mucuk

Creating a WCF Service with JSON data for use on iOS

MyMDb your local IMDB store

22 Jul 2013 by Paw Jershauge

Want your own movie database??? Download IMDB in 20 minutes.

SQL-Server-2008

How to Check Whether Word is Installed in the System or Not

24 Dec 2013 by Reiss

This is an alternative for "How to Check Whether Word is Installed in the System or Not"

Emulate Human Mouse Input with Bezier Curves and Gaussian Distributions

14 Apr 2014 by CatchExAs

Emulate Human Mouse Input with Bezier Curves and Gaussian Distributions

How to Add an AsyncTask to an Android Activity

16 May 2014 by B. Clay Shannon

Step-by-step instructions for adding an Async Task to an Android Activity

Generative Art IV: Distribute Points With Poisson

10 Jan 2015 by dietmar schoder

Poisson disc algorithm: fundamental C# classes and methods for the artwork production in the area of generative art.

A Lightweight File Backup Manager

24 Jan 2015 by shijo joseph

A file backup manager with simple user interface and all the essential functionalities.

The Zen of WinForms Panel Sub-classing

28 Jun 2016 by Tomaž Štih

...without interop!

How to Format Repeating Values in SQL Result Set

13 Oct 2016 by Wendelius

A little tip on how to format repeating values in SQL output using LAG function

WPF WebBrowser Control Enhancements

28 Nov 2016 by Clifford Nelson

The WPF WebBrower control leaves a lot to be desired.