About code. Mostly on C++
You may have multiple versions of the .NET framework installed and used on your machine. The framework has two components: the set of assemblies that provide functionalities for your application, and the common language runtime (CLR) that handles the execution of the application. These two components are versioned separately. If you what to see what…
In C#, function parameters can be declared with the ref or out modifier, the former indicating that a value is already set and the function can read and write it, and the later that the value is not set and the function must do so before returning. As a side note, there is a good…
Visual Studio 2017 Enterprise provides a feature called Live Unit Testing that enables developers to see live how changing C# and VB.NET code affects its corresponding unit tests. Among its features, it includes showing coverage information in the editor as you type, integration with the Test Explorer, including/excluding targeted test methods or projects for large…
The C# Interactive window has been made available again in Visual Studio with the first update to 2015, this time as a REPL window. You can type or paste and execute C# code, and it includes support for adding references to external DLLs and using namespaces. The window is intended for rapid prototyping C# code….
Visual Studio 2015 is out and comes with lots of new features and improvements (see details here) but it also surprised me with what I call a demoting of C++ again to a second-class citizen, after some years when it looked like it regained importance at Microsoft. I’m saying Microsoft has demoted C++ because they…
I was working on transforming a Windows Store app into an Universal app so that it worked not just for Windows Store but also for Windows Phone. When you do this two new projects are added to the solution. One of them is a special one, called shared project that you can use to keep…
Windows 8 features a Settings charm to display both application (the top part) and system (the bottom part) settings (you get it from swiping from the side of the screen). The system provides two entry points, Permissions and Rate and Review, the later only for applications installed through the store. You can customize the settings…
In WPF, Silverlight and Windows Phone it is possible to render a visual object into a bitmap using the RenderTargetBitmap. This functionality, that I find pretty basic, was not available for Windows Store applications. Fortunately, Windows 8.1 provides that functionality for Windows Store applications too, through the same RenderTargetBitmap class. There are some limitations though:…
A friend of mine recently proposed the following problem on twitter: Given f y z =108 – (815 – 1500/z)/y, x0 = 4, x1 = 4.25 and xN+1 = f xN xN-1 then what is x80? Note: This might not be as easy as it looks — Mårten Rånge (@marten_range) October 19, 2013 I didn’t…
A WinForms DataGridView control has the ability to automatically generate its columns and populate from a specified data source (which can be a DataSet, a simple list or something else). All you have to do is something like this: var list = new List<Record>() {new Record() {Id = 1, Name = “item 1”, Date =…