Category: .NET

.NET (dotnet) is a developer platform made up of tools, programming languages, and libraries for building many different types of applications.

So, there are various implementations of .NET (dotnet). Each implementation allows .NET code to execute in different places—Linux, macOS, Windows, iOS, Android, and many more. This framework has two main versions:

  1. Framework is the original implementation of .NET. It supports running websites, services, desktop apps, and more on Windows.
  2. Core is a cross-platform implementation for running websites, services, and console apps on Windows, Linux, and macOS. .NET Core is open source on GitHub.

Then, Xamarin/Mono is a .NET (dotnet) implementation for running apps on all the major mobile operating systems, including iOS and Android.

The .NET Standard is a formal specification of the APIs that are common across .NET implementations. This allows the same code and libraries to run on different implementations.

Therefore, the two major components of .NET (dotnet) Framework are the Common Language Runtime and the .NET Framework Class Library.

  • The Common Language Runtime (CLR) is the execution engine that handles running applications. It provides services like thread management, garbage collection, type-safety, exception handling, and more.
  • The Class Library provides a set of APIs and types for common functionality. It provides types for strings, dates, numbers, etc. The Class Library includes APIs for reading and writing files, connecting to databases, drawing, and more.

Summarize, .NET (dotnet) applications are written in the C#, F#, or Visual Basic programming language. Code is compiled into a language-agnostic Common Intermediate Language (CIL). Compiled code is stored in assemblies—files with a .dll or .exe file extension.

At the end, when an app runs, the CLR takes the assembly and uses a just-in-time compiler (JIT) to turn it into machine code that can execute on the specific architecture of the computer it is running on.

Universal Windows app samples

Enrico
windows store universal windows platform

On GitHub Microsoft have published a lot of examples for Universal Apps: the link is https://github.com/Microsoft/Windows-universal-samples This repo contains the samples that demonstrate the API usage patterns for the Universal Windows Platform (UWP) in the Windows Software Development Kit (SDK) for Windows 10. These code samples were created with the Universal Windows templates available in Visual Studio, and are designed to run on desktop, mobile, and future devices that support the Universal Windows Platform. Universal Windows Platform development These samples require Visual Studio 2015 and the Windows Software Development Kit…

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Windows 10: Changing Paradigms

Enrico

Windows 10 is the main discussion topic in the online development communities. This new operating system that is currently in the technical preview (and available through the Microsoft insider program) is a milestone in the platform unification journey that Microsoft embarked upon with starting with Windows Phone and Windows 8 operating systems. With Windows 10, developers and users are introduced to one development kit, one store, one application and one binary distribution package. Introducing Windows Core With Windows 10, developers are introduced to the new Windows Core concept. Windows Core…

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ASP.NET MVC 3: Razor’s @: and syntax

Enrico

Razor minimizes the number of characters and keystrokes required when writing a view template, and enables a fast, fluid coding workflow. Unlike most template syntaxes, you do not need to interrupt your coding to explicitly denote the start and end of server blocks within your HTML. The Razor parser is smart enough to infer this from your code. This enables a compact and expressive syntax which is clean, fast and fun to type. For example, the Razor snippet below can be used to iterate a list of products: When run,…

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Using the UpdateProgress to lock down controls in the browser

Enrico

If it takes awhile for the server to process the postback (e.g. complex rules or badly written code ), the user may not realize that the server is processing the request. This can lead to all kinds of issues with users that are not savvy or familiar with web applications (multiple clicks, moving off the page, etc.). Consequently, I want to tell the user that the server is processing the request and disable the controls on the page. Let’s break this down into two steps: show a message, and disable…

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Download ReportViewer 2010, ReportViewer 11 and SQLSysClrTypes

Enrico

Have you tried to install ReportViewer on a server? If you as me receive a similar error, I have a solution. When you have to install the Report Viewer on a server, it’s quite difficult to find the install file and a reference for Report Viewer 11 (SQL System Clear Tyle). Here you can download the last ReportViewer with its dependencies. SQLSysClrTypes.zip (1.4MB)ReportViewer.zip (6.1MB)ReportViewer2010.zip (4.5MB)

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Reading and Writing XML in C#

Enrico

In this article, you will see how to read and write XML documents in Microsoft .NET using C# language.  First, I will discuss XML .NET Framework Library namespace and classes. Then, you will see how to read and write XML documents. In the end of this article, I will show you how to take advantage of ADO.NET and XML .NET model to read and write XML documents from relational databases and vice versa. Introduction to Microsoft .NET XML Namespaces and Classes Before start working with XML document in .NET Framework, It…

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Windows and OS X are malware, claims Richard Stallman

Enrico

Linux GNU firebrand Richard Stallman says Windows and Apple’s OS X are malware, Amazon is Orwellian, and anyone who trusts the internet-of-things is an ass. In a column for The Guardian Stallman preaches to the non-technical masses about the evils of proprietary software and vendor lock-in, and how closed-door coding facilitates clandestine deals with nation state spy agencies. “What kinds of programs constitute malware? Operating systems, first of all,” Stallman testifies. “Apple systems are malware too: MacOS snoops and shackles; iOS snoops, shackles, censors apps and has a backdoor. “Even…

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Enable your device for development

Enrico

Important  Currently you cannot enable devices installed with Windows 10 Insider Preview with the System Setting Developer Mode controls as outlined in this article. This feature is not currently supported, but will be enabled in a future release of Windows 10. So you don’t need to follow the steps in the future approach in this article. But you must follow the links directly below to enable your specific Windows 10 device. Windows 10 Phone: Register your phone to enable developer mode using the existing Windows Phone 8.1 tools Windows 10…

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Chart.js Asp.net : Create Pie chart with database jQuery Ajax C#

Enrico

This article explains using Chart.js in Asp.net C# Web Application we can create a pie chart with database MS SQL server connectivity via jQuery ajax call.  You can also have a look on related article, . Now in this post here we create a pie chart by using chart.js library and bind data from our database MS Sqlserver, with jQuery ajax calling. Here we are creating a pie chart, which shows data from the database (Ms SQL server).  In my database, I have a table which stores data (website traffic…

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Encrypting QueryStrings with .NET

Enrico

Once upon a time in the tech world, obscurity was security – this being most true in the early years of the industry, when there were gaping holes in privacy policies and confidential client information was bandied about from site to site without a care as to who actually could read the information. With the new Cryptography classes in .NET, there’s absolutely no excuse for not hiding even the most innocuous user data. If you ever need to ‘piggy-back’ information from one web page to another, whether it is within…

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DateDiff() function in C#

Enrico

I have written the following DateDiff() function in C#. VB.NET users already had it using the Micrsoft.VisualBasic.dll assembly. Now you can use it without referencing this ‘ugly’ extra assembly. using System; namespace PureSourceCode.System { public enum DateInterval { Year, Month, Weekday, Day, Hour, Minute, Second } public class DateTimeUtil { public static long DateDiff(DateInterval interval, DateTime date1, DateTime date2) { TimeSpan ts = date2 – date1; switch (interval) { case DateInterval.Year: return date2.Year – date1.Year; case DateInterval.Month: return (date2.Month – date1.Month) + (12 * (date2.Year – date1.Year)); case DateInterval.Weekday: return…

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Use a reuseIdentifier Where Appropriate

Enrico

A common mistake in app development is not setting the correct reuseIdentifier for UITableViewCells, for UICollectionViewCells, or even UITableViewHeaderFooterViews. For maximum performance, a table view’€™s data source should generally reuse UITableViewCell objects when it assigns cells to rows in tableView:cellForRowAtIndexPath:. A table view maintains a queue or list of UITableViewCell objects that the data source has marked for reuse.What happens if you don’t use a reuseIdentifier? If you don’t, your table view will configure a brand-new cell each time a row is displayed. This is an expensive operation and will…

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