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// assign string from a string literal string s = "hello"; // assign string from an array of characters char[] chars = new char[] { 'h', 'e', 'l', 'l', 'o' }; string s = new string(chars, 0, chars.Length); // assign string from a char pointer, derived from a string string s; uns...

// assigning a signed short to its minimum value short s = -32768; // assigning a signed short to its maximum value short s = 32767; // assigning a signed int to its minimum value int i = -2147483648; // assigning a signed int to its maximum value int i = 2147483647; // assigning a s...

// assigning an unsigned short to its minimum value ushort s = 0; // assigning an unsigned short to its maximum value ushort s = 65535; // assigning an unsigned int to its minimum value uint i = 0; // assigning an unsigned int to its maximum value uint i = 4294967295; // assigning an...

In order to be able to manage your projects' packages, you need the NuGet Package Manager. This is a Visual Studio Extension, explained in the official docs: Installing and Updating NuGet Client. Starting with Visual Studio 2012, NuGet is included in every edition, and can be used from: Tools ->...

When you right-click a project (or its References folder), you can click the "Manage NuGet Packages..." option. This shows the Package Manager Dialog.

Click the menus Tools -> NuGet Package Manager -> Package Manager Console to show the console in your IDE. Official documentation here. Here you can issue, amongst others, install-package commands which installs the entered package into the currently selected "Default project": Ins...

public class SomeClass { public void DoStuff() { } protected void DoMagic() { } } public static class SomeClassExtensions { public static void DoStuffWrapper(this SomeClass someInstance) { someInstance.DoStuff(); // ok ...

Assemblies are the building block of any Common Language Runtime (CLR) application. Every type you define, together with its methods, properties and their bytecode, is compiled and packaged inside an Assembly. using System.Reflection; Assembly assembly = this.GetType().Assembly; Assembl...

You can enumerate through a Dictionary in one of 3 ways: Using KeyValue pairs Dictionary<int, string> dict = new Dictionary<int, string>(); foreach(KeyValuePair<int, string> kvp in dict) { Console.WriteLine("Key : " + kvp.Key.ToString() + ", Value : " +...

// Translates to `dict.Add(1, "First")` etc. var dict = new Dictionary<int, string>() { { 1, "First" }, { 2, "Second" }, { 3, "Third" } }; // Translates to `dict[1] = "First"` etc. // Works in C# 6.0. var dict = new Dicti...

Dictionary<int, string> dict = new Dictionary<int, string>(); dict.Add(1, "First"); dict.Add(2, "Second"); // To safely add items (check to ensure item does not already exist - would throw) if(!dict.ContainsKey(3)) { dict.Add(3, "Third"); } Al...

using System; using System.IO; using System.Linq; using System.Net.Http; using System.Threading.Tasks; class HttpGet { private static async Task DownloadAsync(string fromUrl, string toFile) { using (var fileStream = File.OpenWrite(toFile)) { using (va...

The checked and unchecked keywords define how operations handle mathematical overflow. "Overflow" in the context of the checked and unchecked keywords is when an integer arithmetic operation results in a value which is greater in magnitude than the target data type can represent. When ove...

List<int> l2 = l1.FindAll(x => x > 6); Here x => x > 6 is a lambda expression acting as a predicate that makes sure that only elements above 6 are returned.

string[] strings = new[] {"foo", "bar"}; object[] objects = strings; // implicit conversion from string[] to object[] This conversion is not type-safe. The following code will raise a runtime exception: string[] strings = new[] {"Foo"}; object[] objects = strings;...

public async Task<JobResult> GetDataFromWebAsync() { var nextJob = await _database.GetNextJobAsync(); var response = await _httpClient.GetAsync(nextJob.Uri); var pageContents = await response.Content.ReadAsStringAsync(); return await _database.SaveJobResultAsync(pageContents); } ...

When you want to catch an exception and do something, but you can't continue execution of the current block of code because of the exception, you may want to rethrow the exception to the next exception handler in the call stack. There are good ways and bad ways to do this. private static void AskTh...

public class Person { //Id property can be read by other classes, but only set by the Person class public int Id {get; private set;} //Name property can be retrieved or assigned public string Name {get; set;} private DateTime dob; //Date of Birth property is st...

class Program { public static void Main(string[] args) { Person aPerson = new Person("Ann Xena Sample", new DateTime(1984, 10, 22)); //example of accessing properties (Id, Name & DOB) Console.WriteLine("Id is: \t{0}\nName is:\t'{1}'.\nDOB is...

public class Model { public string Name { get; set; } public bool? Selected { get; set; } } Here we have a Class with no constructor with two properties: Name and a nullable boolean property Selected. If we wanted to initialize a List<Model>, there are a few different ways to ex...