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In languages compiling down to .NET platform, types are strict. Whilst the runtime allows for anonymous object which don't have a pre-defined, named type, the type of a variable may not change over the course of its life-time, hence the need to drop the Variant data-type. However, type "Object" has somewhat similar behavior in practice.
Examples of reference types are object (the ultimate base class for all other C# classes), System. String (a string of Unicode characters), and System. Array (a base class for all C# arrays). Both type categories are extensible with user-defined types.
Additionally, in C# if a block consists of only a single statement, the braces may be omitted. C# is case sensitive while Visual Basic .NET is not. Thus in C# it is possible to have two variables with the same apparent name, for example variable1 and Variable1. Visual Studio will correct (make uniform) the case of variables as they are typed in ...
The creation of open-source tools for Visual Basic development has been slow compared to C#, although the Mono development platform provides an implementation of Visual Basic-specific libraries and a Visual Basic 2005 compatible compiler written in Visual Basic, [33] as well as standard framework libraries such as Windows Forms GUI library.
Stream stream = File. Open ... // Will return an object. String str = stream as String; // Will return null. Null coalesce operator ... In C#, objects are either ...
In object-oriented languages, string functions are often implemented as properties and methods of string objects. In functional and list-based languages a string is represented as a list (of character codes), therefore all list-manipulation procedures could be considered string functions.
.NET Compiler Platform, also known by its codename Roslyn, [2] is a set of open-source compilers and code analysis APIs for C# and Visual Basic (VB.NET) languages from Microsoft. [3] The project notably includes self-hosting versions of the C# and VB.NET compilers – compilers written in the languages themselves. The compilers are available ...
A COM object may be used in .NET by implementing a Runtime Callable Wrapper (RCW). [7] NET objects that conform to certain interface restrictions may be used in COM objects by calling a COM callable wrapper (CCW). [8] From both the COM and .NET sides, objects using the other technology appear as native objects. See COM Interop.