The iterator pattern is used to loop over the elements in a collection and is implemented using the IEnumerator interface. It defines the basic low-level protocol through which elements in a collection are traversed—or enumerated. This is done in a forward-only manner.Here's the IEnumerator interface in C#.public interface IEnumerator{   ... Read More

Working with JSONJSON is a data format that has become a popular alternative to XML. It is simple and uncluttered with a syntax similar to a JavaScript object. In fact, the term JSON stands for JavaScript Object Notation. The recent versions of .NET provide built-in support for working with JSON ... Read More

A dependency is an object that another object depends on. Dependency Injection (or inversion) is basically providing the objects that an object needs, instead of having it construct the objects themselves. It is a useful technique that makes testing easier, as it allows you to mock the dependencies.For example, if ... Read More

System.Reflection namespace in C# The System.Reflection namespace in C# contains the types that provide information about assemblies, modules, members, parameters, and other items in the code by examining the metadata. The Assembly class in this namespace represents an assembly. Typically, you can access it using the Assembly property on a ... Read More

Assembly contains all the compiled types in your application along with their Intermediate Language (IL) code. It is also the basic unit of deployment in .NET. In the latest versions of .NET, i.e. .NET Core, an assembly is a file with a .dll extension, which stands for Dynamic Link Library.There ... Read More

The .NET streams architecture provides a consistent programming interface for reading and writing across different I/O types. It includes classes for manipulating files and directories on disk, as well as specialized streams for compression, named pipes, and memory-mapped files.The streaming architecture in .NET relies on a backing store and adapters.Backing ... Read More

Variables of value types directly contain the values. When you assign one value type variable to another, each variable associates with a different storage location in memory. Hence, Changing the value of one value type variable doesn't affect the value in the second variable.Similarly, when you pass an instance of ... Read More

In C#, strings are immutable. That means you cannot modify a string once it's created. Any modification to the string returns a new string that contains the modification, leaving the original string intact.string word = "aaabbbccc"; string newWord = word.Replace('b', 'd'); Console.WriteLine(word); // prints aaabbbccc Console.WriteLine(newWord); // prints aaadddcccStringBuilder class ... Read More

A C# program compiles to a DLL assembly that contains the compiled C# code along with the metadata for the runtime, and other resources. C# provides a reflection API that lets us inspect the metadata and compiled code at runtime.Using reflection, it's possible to −Access the assembly metadata for all ... Read More

.NET contains a lot of namespaces and many more, if you include the third-party libraries. However, there are a few that you will use over and over. Here are the twenty that will get you through 80% of the common, recurring programming problems.SystemContains the most fundamental types. These include commonly ... Read More