.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.
The other option will be to use Update Panel ASP.NET control as much as possible. It helps to retain the current position on the page whenever a postback happens to the page.
.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.
Calcium provides much of what one needs to rapidly build a multifaceted and sophisticated modular application. Includes a host of modules and services, and an infrastructure that is ready to use in your next application.
This article describes a design, implementation and usage of the Custom Routing Manager for managing messages via Routing Service built-in .Net 4 Technology.
Choosing the right synchronization mechanisms when working with threads, thread-pools, and I/O Completion ports to create high performance asynchronous servers in C++
This article builds upon the earlier High Performance Queries: GPU vs. PLINQ vs. LINQ and ports this to also support OpenCL devices and adds benchmarking so you can easily compare performance.
To get qualified access to paper based information, sometimes more than plain OCR is needed. This article shows why, and offers a solution to increase OCR quality by semi-automatic table extraction.
UPDATE: 2015-07-30 - Works correctly in Windows 10 RTM (10.0.10240) with VS2013 and VS2015 - If you're running Windows 7, 8, 8.1 or 10 and you don't want to disable User Account Control (UAC) - which you shouldn't and quite possibly can't in a corporate environment - then you get an annoying prompt
This article describes a new approach by which an element can remove its visual and logical relationships to its children while maintaining a conceptual parental relationship with those children.
This article will teach you how to create an amazing, clean and smooth WPF/Winform UI for your native application without using any complex, unsafe, ActiveXish methods, etc.
The classes in this project allow you to parse text expressions entered by a user and compile them to a .NET assembly. This assembly can be executed on the fly, or saved to a DLL.
This is a fork of "fastJSON" with new power to control many aspects in JSON serialization and deserialization, such as, serializing interface instances (polymorphic serialization) and private types, including or excluding members, performing data conversions, conditional serialization, etc.
A computer keyboard can be turned into an isomorphic musical instrument, to help in deeper exploration of the Musical Harmony and even to inspire new musical ideas
With the increased prominence of machine learning and ingesting large datasets with the CSV format for this purpose, I decided to write a CSV parser which met my requirements of being small, fast and easy to use.
This article describes a design, implementation and tooling of model driven WorkflowServices logically centralized in the Repository and physically decentralized for their runtime projecting.
Enhance Visual Studio and your build process in just two clicks. This tool does its best to be out of your way, while improving your development experience seemlessly.
In this article, I'll show you how to create interceptors to implement AOP techniques. I'll use ASP.NET Boilerplate (ABP) as base application framework and Castle Windsor for the interception library.
This article presents the techniques and caveats of building Silverlight applications that can be notified about database state changes via polling duplex. WSHttp binding and CLR triggers are used to implement the solution as well.
Add Basic Group-Based permissions management to your ASP.NET MVC application. For applications of moderate complexity, which require a little more granularity in authorization permissions, but which may not warrant moving to a heavy-weight solutions such as Active Directory.
In this article, we will try to understand what is Factory Pattern, what are the benefits of this pattern and how we can implement this pattern using C#.
Hashcash is a proof-of-work system used to limit email spam and denial-of-service attacks, and more recently has become known for its use in bitcoin (and other cryptocurrencies) as part of the mining algorithm.
Talk to your rPi over a Slack channel, getting status, controlling devices, and running shell (bash) commands and viewing the console output posted back to your Slack channel
This article comprehensively covers the Microsoft ClickOnce Installer with a bare bones WinForm/WPF C#/VB Silent Updater framework plus covers how to implement, troubleshoot, test locally, to release.
Learn how to build the body part of your DataGrid using Silverlight and the GOA Toolkit. Implement Virtual Mode, work with hierarchical data, and build cells and cells navigation.
A generic Web User Interface for CRUD applications generating all screens at run-time based on external metadata. It comes with sample applications for address book, memo pad, to do list, restaurants list, wine cellar, and database structure documentation that are easily customizable.
A complete sample application using AngularJS, trNgGrid, ngTable, and ASP.NET Web API to access and display data with server-side data filtering, sorting, and paging.
A somewhat lightweight article, that covers some issues that we should all be conscious of when reworking prototype code (and deciding whether to rework prototype code!) with a case study.
This article will walk you through on building a data-driven web app from scratch within the context of ASP.NET Core 1.0 using Angular 2 and Web API 2.
This article introduces how to create and manage .NET enterprise applications using your favorite technology (Data Access Application Block, LINQ, NHibernate, ASMX, and WCF) with the Model Driven Development approach by Sculpture.
A simple video-security application that allows video capture from PC webcams, detect motion, record videos on local storage using .NET 3.5, AForge and FFMpeg
Development in C# without care of resource consumption can lead to overloading the system. This article describes a case with large waste of memory and CPU time and how to avoid it.
In this article we look at the four aspects of typical SCADA applications that make them quite complex to implement as web applications using HTML-based frameworks.
The attached open source C# .NET library is an SMTP client implementing implicit SSL and OAuth2 protocols. The library answers the question: how to send email message using Gmail as a server. Or, how to send email message using email server that implements implicit SSL and port 465.
Using the WebService Probe to publish details of the "talking" between the web service and its consumer. Here is its design, implementation and usage in the WebService Analyzer Studio.
This post is about implementing Chain Of Responsibility design pattern, and few possible extensions to the same using Managed Extensibility Framework or MEF
This article introduces you to client side multi-column dynamic pivot, a cleaner, simpler and elegant alternative to the complex and convoluted dynamic server side pivot.
Silverlight 4 has the feature to talk with Excel or any other application using the COM API. In this article, I will guide you to understand this feature step-by-step.
The PDF417 barcode encoder class library is written in C#. The target framework is .NET Framework (net462) and .NET Standard (netstandard2.0). The encoder library allows you to create a PDF417 barcode image from a text string or a binary (byte) array. Two demo/test applications are included.
28 Jan 2009 by Jonathan de Halleux, Nikolai Tillmann
Pex is a new tool that helps in understanding the behavior of .NET code, debugging issues, and in creating a test suite that covers all corner cases -- fully automatically.
MVC as a design pattern has been strongly defined by the Gang of Four, but in recent years it's been hijacked as a marketing term more than a design pattern. This article aims to simplify and define what the MVC design pattern is and present a simple MVC framework that you can reuse in your project
A look at how Xamarin MonoTouch allows you to create cross-platform applications, using the native C# / Silverlight for Windows Phone and C#, via Xamarin MonoTouch, for iOS.
When working with ASP.NET Web Api from a .NET client, one of the more confounding things can be handling the case where errors are returned from the Api. Specifically, unwrapping the various types of errors which may be returned from a specific API action method, and translating the error content in
This article is the continuation of the previous three articles regarding how Equality works in .NET, the purpose is to give developers a more clear understanding on how .NET handles equality for types.
Part 1: Master the ASP.NET MVC Project Template & Technologies (Razor, jQuery, JavaScript, Bootstrap, CSS). Part 2: Build an ASP.NET MVC app which runs in the browser but feels like using a desktop app.
Learn how to view a remote machine's file system using your own explorer like window, and transfer files and folders by dragging and dropping in C# using the TcpComm TCP library
Three algorithms are presented -- iterative, recursive yield, and recursive step-and-continue, with a real time and interactive UI of the solving process and solution.
The easiest way to implement the ToolStripControlHost and ToolStripDropDown classes, in a UserControl, in order to display a Container/Control beyond the limits of its Parent Container and Parent Form, with very few lines of code. Let's uncomplicate ...
This will cover how to use Domain Driven Design in your application according to the Onion Architecture. There are short descriptions about architecture Category / Style, N-Layer / N-Tier Architecture, Template Method Pattern and Facade Design Pattern.
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.
This article describes a design, implementation and usage of the custom service operation invoker for invoking a xaml workflow. It is based on the upcoming Microsoft .NET 4 Technology.
An articial life algorithm that attempts to solve a problem by flying a swarm of entities through a range of possible solutions where each entity is guided by the performance of other members of the swarm
This article will talk about how to implement a custom wrapper for your ASP.NET Core and Web API applications for managing exceptions, providing meaningful and consistent responses to consumers.
In this article, we get up to speed with Wisej.NET and explore how it addresses the specific challenges of building Line-of-Business, Enterprise Web Applications.
Educational software package for Microsoft Windows® 7/8 contains “5-in-1” School Math Calculators and Equation Solvers intended for students and educators
This article is targeting architects and developers who are looking for a way to integrate .NET applications / Servers with IBM WebSphere MQ (IBM MQSeries).
Shows how a .NET based WebDAV server can be created by combining two Open Source projects. The example implementation returns files from a file system, but you can extend it to return resources from any repository.
This article is the second one of two articles in which I want to show a solution for the Print Preview of the DataGridView object. One of the goals of my solution is to print the DataGridView keeping its styles automatically.
A collection of ExtractionRules, ValidationRules, and Request Plugin that makes ASP.NET and AJAX website testing painless. No need to record tests, write parameterized tests using server-side control names, handle UpdatePanels, simulate clicks on buttons - all from Web Test.
Convert a generic list to an Excel byte array using Open XML SDK and dynamically create an Excel file for data distributions from an ASP.NET MVC website
Metah.W(MW) is a C#-derived metaprogramming language for Windows Workflow Foundation 4.5. It provides an alternative way of composing activities to the WF designer.
In this article we will learn about EventAggregator and IActiveAware interface and its uses in WPF application using Prism. This is continuation of second part of article series having total three parts.
This article will show you how to expose the database schema to the APIs, then query from it. No boilerplate code for simple query actions. Go and read it.
Application of SocketPro onto various databases for continuous inline request/result batching and real-time stream processing with bi-directional asynchronous data transferring
How to create a .NET user control combining several radio buttons with a border and a caption and provide it with handy support of Visual Studio at design time.
SignalR server and client applications for demonstrating common scenarios like connecting, disconnecting, joining and leaving groups, sending messages to all clients, to specific or group of clients
Often, when WPF developers have to write a custom window, they find themselves drowning in countless articles, blog posts, and StackOverflow threads each depicting a different approach to the problem.
Normal maps are used for realtime 3D rendering (mostly in games) to improve the visual quality, but compressing them makes the 3D content look ugly, this tool helps to fix that problem.
This brief article describes how to use managed Direct3D to render texture bitmaps with alpha channels and transparency key colours onto vertices in C# with the aid of a MatrixStack.
This article covers a selection of best practices related to the internals of the project “sandbox”. The sandbox is understood as a folder with a complete structure containing the source files of a specific product.
This article focuses on internal supply chain management systems visibility via chart reports, and provides assessment apparatus to manage and monitor activities spawned during business processes, hence paves the way for timely and precise business decisions.
The Exif Compare Utility is a WinDiff equivalent for image files that compares the Exif meta-data and displays the differences and similarities. The application is written using WPF and MVVM.
In this article, I explain, step by step, how we can use a WCF behavior for logging operation's invoke and result, errors, warnings and information logs that include the operation's details.
This article describes one way of using the WPF TreeView to create tabbed Navigational Trees using MVVM for use in a File Explorer. In a next planned article a Tabbed Folder Plane will be added.
In this article I will demonstrate two things: First a very basic and simple code snippet to show how we can use task factory to make our web applications more responsive, the next part will be on how to use the SignalR to broadcast messages from the Web Server to all the clients connected.
Open source framework for monitoring Asp.Net Web Api 2 and MVC5 applications performance without using windows performance counters, automates performance counters data collection, store and visualization.
In this article, let’s see how to create our first ASP.NET Core Angular 2 Starter Application (.NET Core) using Template pack using Entity Framework 1.0.1 and Web API to display data from the database to our Angular2 and ASP.NET Core web application.
This article shows how we can implement WebBinding for the AngularJS library and, use it for binding AngularJS client side objects to ASP.NET server side objects.
Demonstration of how to create an externally extendable dynamic page, which will support all controls that we can add later in a separate assembly without the recompilation of the dynamic page
Create a simple data grid that provides list, add, edit and delete and uses a simple 'parent/child' template to provide view, edit or add functionality
How to stop believing in "Never change a running system" and going live as often as possible - Branch by Abstraction, Feature Branches and Feature Toggles with FeatureBee
In this article, we started from Generate Inserts procedure, then go through how generates inserts SQL files with this procedure and runs these inserts SQL files to import data.
This article will find out a solution to serialize/deserialize object by reference at server and client, also will serialize/deserialize objects having circular references.
A method to easily toggle the way exceptions are being handled (either being thrown or handled by custom code), while still conserving the stack trace when exceptions are not being thrown.
In this article, you will learn about basic foremost concepts about Action Results in ASP.NET MVC 5. Hope you'll enjoy this. Feel free to give your feedback.
This article contains the public domain implementation of an interpreter for a statically typed stack-based programming language in C# called Cat. The accompanying article is a high-level description of how the various modules work, a brief description of the language, and links to related work.
This article will show how to use data binding and styles to show data coming from a Microsoft SQL database using the new object-relational model introduced in Visual Studio 2008, LINQ to SQL, allowing grouping, sorting and filtering of data with almost no code.
This article shows a detailed approach on how to dynamically point to a given shared data source reference by setting up an RDCE and using a couple of tips and tricks.
A framework for scanning a worksheet for headers, reading and validating data, providing feedback to the user, and displaying the data in a form with the results.
This article covers some details and issues in making an application used with Internet Explorer to download only unique images to a chosen folder. DUIapp creates and maintains an index in the folder to include unique and exclude duplicate images selected from IE web pages.
It has never been easier for C# desktop developers to write code that takes advantage of the amazing computing performance of modern graphics cards. In this post I will share some techniques for solving a simple (but still interesting) image analysis problem. Source Code https://www.assembla.com/co
For modern web-applications has become the usual to use AJAX when you create user interfaces. However, it makes our headache from time to time. And often these difficulties are associated with authentication and processing such requests on the client.
In this article we will try to understand about ASP.NET MVC Routes. We will get to know the details about routes and try to see how we can implement route constraints.
Are you excited to get your Myo armband from Thalmic Labs? If you're a C# developer, then check out this open source library to help you control your Myo! The post appeared first on http://www.DevLeader.ca.
This article will cover the basics of network programming using Network View in Unity 3D. We will be creating an Authoritative Server based networking environment showcasing the basics functions of network programming using Unity 3D and C#.
This article is an attempt at splitting out the controller layer to reduce its complexity and improve quality and maintainability of the resulting code.
Since I wrote an article previously, I had been asked on various occasions to share the code on Yahoo! or Bing, etc. I wanted to write an article, with the code, which covers all of those vendors as well.
As more and more users interact with web applications on their mobile devices, it is becoming increasingly important for software developers to allow them to work offline; PouchDB can help.
As a first application that involves hardware, I decided to keep things simple. The idea is just to hook up a couple Inputs and Outputs and have a program that will work with the GPIO to read/write the values.
A free service makes it possible to use a fuzzy logic expert system online. We'll go through an example of coding in .NET core to access this, and look at some of the features of the engine and the DARL language.
PocketPcAgent is an application that can be installed on Windows Mobile devices that are running Windows Mobile 5.0 or higher. The application listens to events such as SMS Received, Call Missed, E-Mail Received, Battery Strength Changed, and much more on the Pocket PC.
Slink is a code generating Framework that generates type safe URLs for ASP.NET. With Slink URLs, you increase code quality, increase maintainability, and get compile time checking of your URLs in all your ASPX pages (code-behind and non-codebehind).
Sequential workflow as a WCF service. Create workflow custom activities, invoke child workflow from parent. Configure workflow runtime service using a config file. Basic idea of rules, creating a rule using the rule editor. Applying rules during runtime.
A How-To Guide for replacing the integrated ClickOnce technology built into Visual Studio, and control the install/update process using Visual Studio tools
MS Test Result Viewer is a free open source library to convert MS Test result (.trx) file into HTML. It is also allowed you to perform MS Test on your test container project (.dll) file. This utility will work with simple command line arguments to generate test report in HTML format with excellent U
An Enhanced Skype Chatter Bot, with a friendly user interface, programable knowledge base, testing interface with Export/Import knowledge base to files
Import photos & videos directly from smart phones and digital cameras using the Windows Photo Import API, for Windows Universal Apps and Classic Win32 applications on Windows 10 and beyond.
Extends .NET reflection to decode the byte array returned by System.Reflection.MethodBody.GetILByteArray(), discusses the techniques to achieve this, and provides a brief primer on .NET reflection.
To work with Regions effectively in a Prism based WPF application, we must understand the relationship between WPF Controls, RegionAdapters and Regions. In this articles, we will learn about process of Region creation and critical role played by RegionAdapters with a demo application.
This article presents a behavior that can make another UIElement visible when the mouse down event occurs on the UIElement this behavior is attached to. Have extended this to directly support fading of a Popup control
This presents a way to capture a PropertyChanged on a DependencyObject, in this case to capture when the Content on a ContentPresenter changes and setting focus.
This is the second part of a multipart article on unifying web and window form application development. This part demonstrates synchronous and asynchronous event handling of GUI control events, abstracting the implementation of web/window forms to be technology independant.
A full series of 8 part articles to show One-To-One, Many-To-One, Many-To-Many associations mapping using NHibernate, Using Collections With NHibernate, Inheritance Relationships Using NHibernate, Lazy Initializations/Fetches Using NHibernate.
Implement WCF web service access from WPF with busy indicator and premature cancellation feature without using delegates, background worker, or separate event procedure
How to develop Linux/Unix (X11) GUI applications in C# efficiently without dependencies to GUI frameworks like GTK or KDE. Description of composite widgets.
Create a Xamarin Forms tabbed page or carousel page by binding to a collection of ViewModels; extending beyond the current capabilities of Xamarin Forms.
This article will cover the basics of Leap Motion integration into your Unity 3D project. We will look at the basic setup and implementation of the basics to get you started. In order for you to try the code, you will need to have the Leap Motion hardware.
Creating PDF reports for grouped or non-grouped data lists in C# with many custom options and configurations (providing source code with .NET Framework 4.6.1 and .NET Core 3.1)
There are cases where it might be desirable to support character input without a keyboard attached in a more embedded application where the keyboard is displayed as part of the window.
In this article I take a look at setting up a system for HoloLens development, the compatibility of the applications with other UWP platforms, and introduce Unity for making a 3D application
This article of the series "Diving into OOP" will explain all about events in C#. The article focusses more on practical implementations and less on theory.
Using Bison/Flex for creation of the code convertor from subset of MATLAB language to C code. The converter is used for building native applications and libraries from MATLAB code.
Any deterministic game can be broken down to its core functionalities. By understanding them, one can implement fundamental algorithms such as Minimax (with alpha beta pruning), thus paving the way towards a better AI opponent.
In this article, I'll explain how to build a robust Git hooks system using C#. Also, I'll show how to use it to solve a couple of nasty problems with development collaboration.
The mystery of Benham’s top invented in 1895, as well as Fechner color effect, remains not fully uncovered so far. WPF and XAML help to accelerate the research greatly.
Processing the positioning information of visual objects detected by Pixy camera and received on Raspberry Pi via I2C, and using common design patterns in a C# program parsing robotics sensor data
The Cross-Platform Object-Oriented approach to Synchronization Primitives for .NET and .NET Core based on one shared pattern between two interfaces for General Threading and Async/Await.
This value converter makes it very quick and easy to add the ability for the user to input equations in text boxes that are bound to numeric properties.
Pandemic SEIR and SEIRV modelling software and infrastructure for the Corona SARS-COV-2 COVID-19 disease with data from Johns-Hopkins-University CSSE, Robert Koch-Institute and vaccination data from Our World In Data.
This is part II of a VII part series. This article covers the basics of what the Genesis Smart Client is and serves as required reading before reading parts III - VII
This article describes the steps to re-configure SQL Server so that queries return accent-insensitive results. It includes source code (using Microsoft SQL Server 2008 R2 Shared Management Objects) to automate some of the steps in this procedure.
An introduction to a special type of Moving average, which considers not the last N events, but the last events that happened in the given time interval.
Web API was introduced and was recently streamlined into Web API 2.0. This framework is heaven for C#/.NET services developers. It allows you to get a RESTful API in .NET up and running in less than an hour. As you'll see it's also just as easy to consume that API in another programming language.
Using replication, you can distribute data to different locations and to remote or mobile users over local and wide area networks, dial-up connections, wireless connections, and the Internet.
This is an application made for Windows (Universal) 10 devices made with MVVM, IoC-containers and dependency injection. There is also an API from Yahoo and SQLite service.
This article will cover other debugging improvements of VisualStudio 2015 like the tool window support for LINQ and Lambda expressions, the newperftips, and the new diagnostic tool window.
In this article, we explore the implementation of a Visual Studio editor that allows editing of a fictitious "Colorful" language. The editor minimally implements both syntax classification / coloring and IntelliSense completion.
The PDF417 barcode decoder class library allows you to extract PDF417 barcode information from image files. The library is written in C# for the .NET framework. The two demo projects allows you to explore the library and read PDF417 barcodes.
What if one day you felt that ReSharper autocomplete, intellisense, inbuilt debugger, and other modern programming enhancements are making development boring, too fast so that the process becomes unattractive.
.NET SIMD programs using the Vector types show performance comparable to Intel ISPC and open source C++ SIMD libraries while satisfying the same goal of SIMD developer productivity in a high-level language.
Compact infrastructure for custom hosting of .NET Core component in unmanaged C/C++ code with reciprocal methods calls between the parts running in Windows and Linux. Section Threads and Processes
This article mainly covers how to setup and configure Azure AD tenant and integrating Azure AD into ASP.NET Core 2.0 web app for authentication and role based authorization.
This article shows how to create a very simple control in C# that overrides the ArrangeOverride, GetVisualChild, and VisualChildrenCount to create a panel that shadows and disables contained controls.
EF Dynamic Report is a small open source project which allows you to use Entity Framework mapping between types and tables as a dynamic report data source
5-in-1 educational software package for Tablet PC/Win8: Fraction Calculator, Prime Factoring, Linear, Quadratic and System of Equation solvers (AIC-2013)
This article and the demo are about getting started using the MVVM Toolkit and some self-created interfaces / services for MessageBox and some dialogs.
(Yet) another screen saver for the Code Project competition, with code in C# and (coming soon) some details about how certain aspects of the code involved work.
Implements an instrumented event manager which can be used to invoke event sinks both synchronously and asynchronously. The event sink can be declared using either the System.EventHandler delegate or by reflection.
Shows how to create a ToolTip provider that supports Balloon Tooltips, including issues related to creating extender properties and using the NativeWindow class.
A conversion of Project Silk to ASP.NET Web Forms using the Navigation for ASP.NET Web Forms codeplex project, concentrating on the navigational aspects
An extended Static markup extension implementation for Silverlight 5 and WPF supporting invoking static methods with arguments, and a Silverlight Type markup extension implementation.
This article describes how to use KnockoutJS, JQuery and Google Maps to create a responsive GUI of web applications. The usage of MVVM helps to keep JavaScript code organized and easy to evolve and maintain.
C# fastcgi protocol implementation. A good example on how to self-host your web application without the need of iis or mono, for example using Nginx on both Windows and Linux
The source code and a simple demo program for a plug-in in Microsoft Managed Extensibility Framework (MEF) that provides visual display of email messages.
A problem with the WPF MVVM design pattern is closing a window from the ViewModel. This article presents a method that allows the use of dependency properties to be used to control the closing of a window
Semi-Prime Ordered Sequences (Part 2) is the follow-on to “Exploring Computational Number Theory (Part 1)” and describes a process for ordering the semi-prime base sequences.
Project to generate Excel Spreadsheet from DataSet with auto size (AutoFit) columns, auto-filter, alternating light blue background color with Open XML using ASP.NET MVC
This article takes you through a step by step journey of building a fairly large console application which is modular and also extensible by using the principles of Managed Extensibility Framework.
This is yet another example for memory mapped files. What is cool though is unlike other samples, I have a SetData(TCHAR* Key, TCHAR* value) / GetData(TCHAR* key) pattern here.
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