You're an intermediate dotnet programmer and you mostly know your way around using Tasks. You sprinkle async and await through your code, and everything is working just as expected.
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.
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.
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.
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.
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 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.
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
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.
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.
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.
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.
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.
A Yahoo! messenger clone application built with Silverlight and its Duplex Polling WCF service. Explains how to deal with the Yahoo! packet format named YMSG.
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.
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.
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.
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.
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.
ASP.NET team released Identity framework 2.0. The new release contain some new features like generic primary key. This article explain how to change primary key from string to integer & use it with MVC5.
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, we will demonstrate how to compute full SVD of a given matrix A and discuss about the code in C++11 implementing the full SVD computation by using simple iteration and Jordan-Gaussian methods.
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
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.
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.
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.
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.
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.
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.
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
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.
This article mainly covers how to create new build and release definition using VSTS. There are short descriptions of DevOps, continuous integration, continuous delivery and continuous deployment.
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.
I want to host some simple applications under a real HTTPS domain. This article describes my foray into doing exactly this with a Digital Ocean Droplet.
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.
Tutorial on creating your own collection classes that are enumerable and sortable. Explains in detail the usage of the IEnumerable, IEnumerator, IComparable and IComparer interfaces
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)
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.
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.
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.
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.
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.
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.
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.
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
This article will show you how to generate a JSON base web service layer from an existing database using CodeFluent Entities. We will also generate a web client back office following an “Import wizard”.
When supplied with a connection string and table name, this tool will read the field data types and create asp controls for you to copy and paste in your own project.
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
A custom and configurable Angular data grid tool and demo application presenting both client and server-side data filtering, sorting, and pagination (updated to Angular 11)
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.
This short article shows how to use an undocumented internal class method from the System.Deployment.Application.Win32InterOp namespace to get a PE images manifest resource.
To give users the full control over the running application. While an application is running, users can move, resize, and tune all the screen objects through which the communication with an application is going.
A strategy for keeping sensitive configuration values, such as connection strings, out of your source control repository, but still available to your app both locally and in the cloud. We're looking specifically at Azure websites and GitHub.
This article describes how a Windows Azure BizTalk Service Bridge pipeline can be extended for message mediation by Workflow (VETER + WORKFLOW Pattern).
Currently none of the big Linux/Unix (X11) GUI application frameworks (GTK+, KDE) support XAML based application development. The Moonlight project (including XAML support) was abandoned on May 29, 2012. This article reviews a XAML based application with WPF geometry objects (shapes).
In this article, we will see how to use entity framework in our Applications, developed through the various languages that Visual Studio allows us to use. The examples in this article and probably in the next, will be C # used under WinForms, but - as mentioned - this choice is not going to affect a
Ouellet Convex Hull is currently the only ‘Online’ Convex Hull in O(log h) per point, where 'Online' stands for dynamically add one point at a time. Based on our own test against many other algorithm implementations, including Chan and Voronoi/Delaunay, it appears to be the fastest one.
In this article, we will formulate and discuss CLOPE data mining clustering algorithm that allows to drastically increase the quality and efficiency of categorized data clustering and can be easily used for recommendation-specific purposes
SpaceVIL is a cross-platform and multilingual framework for creating GUI client applications for .NET Framework, .NET Core and JVM. This article discusses the SpaceVIL framework, its capabilities and a brief story of its creation.
If you are a programmer that tried to introduce a kid to programming with Scratch, this article is for you. Comparing a simple game between Scratch and C#.
This article revises an earlier revision of the Gradient Color Picker (V2). The incentive for the revision was a reader request for a larger number of initial color choices.
Currently none of the big Linux/Unix (X11) GUI application frameworks (GTK+, KDE) support XAML based application development. The Moonlight project (including XAML support) was abandoned on May 29, 2012. This article shows 'how to' a XAML based ribbon application with the Roma Widget Set (Xrw) in C#
The Open Graph protocol specifies additional meta tags that can be added to the page to supplement social networking sites with more information about your page.
Use QuickAccent to quickly copy accents and symbols to your clipboard. Also read the article to find out about the essentials when writing System Tray based applications
This article describes how the Azure Lease Blob can help the composition of the business model during the runtime in the distributed event-driven pub/sub architecture.
In this article, we'll look at how you can add social networking buttons to your website to connect it to other networks. We'll use BuildButtons for the heavy lifting.
This article describes how I wrote a small Windows service for handling the task of sorting and renaming scanned (and run throgh OCR) documents depending on contents.
Currently none of the big Linux/Unix (X11) GUI application frameworks (GTK+, KDE) support XAML based application development. The Moonlight project (including XAML support) was abandoned on May 29, 2012. This article shows 'how to' a XAML based dialog application with the Roma Widget Set (Xrw) in C#
You can implement SharePoint documents in your AngularJS applications much easier when you create your code in a Visual Studio LightSwitch Cloud Business app.
How to apply GA techniques fo solving problems in VB.NET. The example shows how to create solutions for a 2D maze, which will evolve to find the shortest path between two points.
Convert a class library of POCO classes to datacontracts for use with WCF without having to write DataContract and DataMember attributes directly to the POCO classes.
Reat time Spreadsheet, updating and retrieving data through a Web Service. Using SQL Server DB.If two or more users are working on the same spreadsheet, they can see what the other users are doing. Mouse pointing is highlighted by filling the cell with diagonal stripes, while data saved is highlight
There are lots of ways to implement Uniqueness or Unique Key attribute on a model property other than primary key, but here I am going to discuss two possible best and easiest ways to do so in two parts of these series. This is Part 2.
In the present article, we'll analyze some functionalities offered by Microsoft Azure Cognitive Services, and in particular that part of Cognitive Services dedicated to facial recognition (Face API). At the end of the article, the reader will be able to develop a simple C# application to detect face
This article explains how to display a loading indicator (a GIF image) in Windows Forms application when some long running task is performed in the background.
This article describes how to design, build and install .Net Application into the COM+ Catalog without using the ServicedComponent class in your application. The solution shows retrieving the assembly and class attributes (included custom) from the assembly file and their storing into the COM+ Catal
In this article, I will explore handling unknown actions. A Controller.HandleUnknownAction method gets called when a controller cannot find an action method that matches a browser request.
SoapBox Core uses WPF's MEF to provide a base application framework that is easy to extend. This is a simple example that includes elements of a basic application (toolbar, statusbar, document area, etc.).
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