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C# (programming language)
 Потоки в C# 
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обновлено: 28 September 2018
При написании программы очень часто используется многопоточность, то есть выполнение нескольких задач одновременно. Каждая задача выполняется в отдельном потоке.
Поток это кусочек кода программы.

Для каких задач используются потоки?
Основная причина, вынуждающая разработчиков создавать вторичные потоки, является необходимость вызова методов, которые требуют определенного времени для завершения.

Например у нас графическое приложение, которое:
• рисует графику (много линий)
• записывает постоянно данные в файл
• посылает запросы к серверу
и все это делает одновременно
Пример Thread
При создании потока в конструкторе указывается функция
Чтобы запустить поток нужно вызвать Start
  C#     Создаем новое C# консольное приложение... и напишем код
using System;

// добавляем библиотеку для потоков
using System.Threading;

namespace ConsoleApplication1
{
     class Program
     {
          static void Main(string[] args)
          {
               // создаем поток и назначаем функцию Algoritm1
               Thread thread1 = new Thread(Algoritm1);
               // запускаем поток
               thread1.Start();

               // создаем поток и назначаем функцию Algoritm2
               Thread thread2 = new Thread(Algoritm2);
               // запускаем поток
               thread2.Start();
          }

          // функция потока
          public static void Algoritm1()
          {
               Console.WriteLine("algorithm1 say: Hello");
               Console.WriteLine("algorithm1 say: I am reading Book");
          }

          // функция потока
          public static void Algoritm2()
          {
               Console.WriteLine("algorithm2 say: Good morning");
               Console.WriteLine("algorithm2 say: I am sweeming");
          }
     }
}
Результат примера
Класс Thread в C#
namespace System.Threading

Версия .NETFramework\v4.6.1\mscorlib.dll

Синтаксис
public sealed class Thread : CriticalFinalizerObject, _Thread
Constructors
public Thread(ThreadStart start);
Параметр start это функция которую поток будет выполнять.
Делегат ThreadStart описан так:
public delegate void ThreadStart();
public Thread(ParameterizedThreadStart start);
Параметр start это функция которую поток будет выполнять.
Делегат ParameterizedThreadStart описан так:
public delegate void ParameterizedThreadStart(object obj);
public Thread(ParameterizedThreadStart start, int maxStackSize);
Initializes a new instance of the System.Threading.Thread class, specifying a delegate that allows an object to be passed to the thread when the thread is started and specifying the maximum stack size for the thread. Полное описание ...
public Thread(ThreadStart start, int maxStackSize);
Initializes a new instance of the System.Threading.Thread class, specifying the maximum stack size for the thread. Полное описание ...

Properties
public ApartmentState ApartmentState { get; set; }
Gets or sets the apartment state of this thread. Полное описание ...
public static Context CurrentContext { get; }
контекст текущего потока
public CultureInfo CurrentCulture { get; set; }
Gets or sets the culture for the current thread. Полное описание ...
public static IPrincipal CurrentPrincipal { get; set; }
Gets or sets the thread's current principal (for role-based security). Полное описание ...
public static Thread CurrentThread { get; }
текущий поток
public CultureInfo CurrentUICulture { get; set; }
Gets or sets the current culture used by the Resource Manager to look up culture-specific resources at run time. Полное описание ...
public ExecutionContext ExecutionContext { get; }
Gets an System.Threading.ExecutionContext object that contains information about the various contexts of the current thread. Полное описание ...
public bool IsAlive { get; }
работает ли поток в текущий момент
public bool IsBackground { get; set; }
является ли поток фоновым
public bool IsThreadPoolThread { get; }
Gets a value indicating whether or not a thread belongs to the managed thread pool. Полное описание ...
public int ManagedThreadId { get; }
Gets a unique identifier for the current managed thread. Полное описание ...
public string Name { get; set; }
имя потока
public ThreadPriority Priority { get; set; }
приоритет потока (значение из ThreadPriority ...)
public ThreadState ThreadState { get; }
состояние потока (значение из ThreadState ...)

Methods
public void Abort();
Уведомляет среду CLR о том, что надо прекратить поток, однако прекращение работы потока происходит не сразу, а только тогда, когда это становится возможно. Для проверки завершенности потока следует опрашивать его свойство ThreadState
public void Abort(object stateInfo);
Raises a System.Threading.ThreadAbortException in the thread on which it is invoked, to begin the process of terminating the thread while also providing exception information about the thread termination. Calling this method usually terminates the thread. Полное описание ...
public static LocalDataStoreSlot AllocateDataSlot();
Allocates an unnamed data slot on all the threads. For better performance, use fields that are marked with the System.ThreadStaticAttribute attribute instead. Полное описание ...
public static LocalDataStoreSlot AllocateNamedDataSlot(string name);
Allocates a named data slot on all threads. For better performance, use fields that are marked with the System.ThreadStaticAttribute attribute instead. Полное описание ...
public static void BeginCriticalRegion();
Notifies a host that execution is about to enter a region of code in which the effects of a thread abort or unhandled exception might jeopardize other tasks in the application domain.
public static void BeginThreadAffinity();
Notifies a host that managed code is about to execute instructions that depend on the identity of the current physical operating system thread. Полное описание ...
public void DisableComObjectEagerCleanup();
Turns off automatic cleanup of runtime callable wrappers (RCW) for the current thread.
public static void EndCriticalRegion();
Notifies a host that execution is about to enter a region of code in which the effects of a thread abort or unhandled exception are limited to the current task.
public static void EndThreadAffinity();
Notifies a host that managed code has finished executing instructions that depend on the identity of the current physical operating system thread. Полное описание ...
public static void FreeNamedDataSlot(string name);
Eliminates the association between a name and a slot, for all threads in the process. For better performance, use fields that are marked with the System.ThreadStaticAttribute attribute instead. Полное описание ...
public ApartmentState GetApartmentState();
Returns an System.Threading.ApartmentState value indicating the apartment state. Полное описание ...
public CompressedStack GetCompressedStack();
Returns a System.Threading.CompressedStack object that can be used to capture the stack for the current thread. Полное описание ...
public static object GetData(LocalDataStoreSlot slot);
Retrieves the value from the specified slot on the current thread, within the current thread's current domain. For better performance, use fields that are marked with the System.ThreadStaticAttribute attribute instead. Полное описание ...
public static AppDomain GetDomain();
Возвращает домен приложения AppDomain...
public static int GetDomainID();
Возвращает id домена приложения, в котором выполняется текущий поток
public override int GetHashCode();
Returns a hash code for the current thread. Полное описание ...
public static LocalDataStoreSlot GetNamedDataSlot(string name);
Looks up a named data slot. For better performance, use fields that are marked with the System.ThreadStaticAttribute attribute instead. Полное описание ...
public void Interrupt();
Прерывает поток на некоторое время
public void Join();
Блокирует выполнение вызвавшего его потока до тех пор, пока не завершится поток, для которого был вызван данный метод.
public bool Join(int millisecondsTimeout);
Блокирует выполнение вызвавшего его потока до тех пор, пока не завершится поток, для которого был вызван данный метод или пройдет время в миллисекундах.
public bool Join(TimeSpan timeout);
Блокирует выполнение вызвавшего его потока до тех пор, пока не завершится поток, для которого был вызван данный метод или пройдет время.
public static void MemoryBarrier();
Synchronizes memory access as follows: The processor executing the current thread cannot reorder instructions in such a way that memory accesses prior to the call to System.Threading.Thread.MemoryBarrier() execute after memory accesses that follow the call to System.Threading.Thread.MemoryBarrier().
public static void ResetAbort();
Cancels an System.Threading.Thread.Abort(System.Object) requested for the current thread. Полное описание ...
public void Resume();
Resumes a thread that has been suspended. Полное описание ...
public void SetApartmentState(ApartmentState state);
Sets the apartment state of a thread before it is started. Полное описание ...
public void SetCompressedStack(CompressedStack stack);
Applies a captured System.Threading.CompressedStack to the current thread. Полное описание ...
public static void SetData(LocalDataStoreSlot slot, object data);
Sets the data in the specified slot on the currently running thread, for that thread's current domain. For better performance, use fields marked with the System.ThreadStaticAttribute attribute instead. Полное описание ...
public static void Sleep(int millisecondsTimeout);
останавливает поток на заданное количество миллисекунд
public static void Sleep(TimeSpan timeout);
останавливает поток на заданное количество времени
public static void SpinWait(int iterations);
Causes a thread to wait the number of times defined by the iterations parameter. Полное описание ...
public void Start();
Запускает поток.
public void Start(object parameter);
Causes the operating system to change the state of the current instance to System.Threading.ThreadState.Running, and optionally supplies an object containing data to be used by the method the thread executes. Полное описание ...
public void Suspend();
Either suspends the thread, or if the thread is already suspended, has no effect. Полное описание ...
public bool TrySetApartmentState(ApartmentState state);
Sets the apartment state of a thread before it is started. Полное описание ...
public static byte VolatileRead(ref byte address);
Reads the value of a field. The value is the latest written by any processor in a computer, regardless of the number of processors or the state of processor cache. Полное описание ...
public static double VolatileRead(ref double address);
Reads the value of a field. The value is the latest written by any processor in a computer, regardless of the number of processors or the state of processor cache. Полное описание ...
public static float VolatileRead(ref float address);
Reads the value of a field. The value is the latest written by any processor in a computer, regardless of the number of processors or the state of processor cache. Полное описание ...
public static int VolatileRead(ref int address);
Reads the value of a field. The value is the latest written by any processor in a computer, regardless of the number of processors or the state of processor cache. Полное описание ...
public static IntPtr VolatileRead(ref IntPtr address);
Reads the value of a field. The value is the latest written by any processor in a computer, regardless of the number of processors or the state of processor cache. Полное описание ...
public static long VolatileRead(ref long address);
Reads the value of a field. The value is the latest written by any processor in a computer, regardless of the number of processors or the state of processor cache. Полное описание ...
public static object VolatileRead(ref object address);
Reads the value of a field. The value is the latest written by any processor in a computer, regardless of the number of processors or the state of processor cache. Полное описание ...
public static sbyte VolatileRead(ref sbyte address);
Reads the value of a field. The value is the latest written by any processor in a computer, regardless of the number of processors or the state of processor cache. Полное описание ...
public static short VolatileRead(ref short address);
Reads the value of a field. The value is the latest written by any processor in a computer, regardless of the number of processors or the state of processor cache. Полное описание ...
public static uint VolatileRead(ref uint address);
Reads the value of a field. The value is the latest written by any processor in a computer, regardless of the number of processors or the state of processor cache. Полное описание ...
public static UIntPtr VolatileRead(ref UIntPtr address);
Reads the value of a field. The value is the latest written by any processor in a computer, regardless of the number of processors or the state of processor cache. Полное описание ...
public static ulong VolatileRead(ref ulong address);
Reads the value of a field. The value is the latest written by any processor in a computer, regardless of the number of processors or the state of processor cache. Полное описание ...
public static ushort VolatileRead(ref ushort address);
Reads the value of a field. The value is the latest written by any processor in a computer, regardless of the number of processors or the state of processor cache. Полное описание ...
public static void VolatileWrite(ref byte address, byte value);
Writes a value to a field immediately, so that the value is visible to all processors in the computer. Полное описание ...
public static void VolatileWrite(ref double address, double value);
Writes a value to a field immediately, so that the value is visible to all processors in the computer. Полное описание ...
public static void VolatileWrite(ref float address, float value);
Writes a value to a field immediately, so that the value is visible to all processors in the computer. Полное описание ...
public static void VolatileWrite(ref int address, int value);
Writes a value to a field immediately, so that the value is visible to all processors in the computer. Полное описание ...
public static void VolatileWrite(ref IntPtr address, IntPtr value);
Writes a value to a field immediately, so that the value is visible to all processors in the computer. Полное описание ...
public static void VolatileWrite(ref long address, long value);
Writes a value to a field immediately, so that the value is visible to all processors in the computer. Полное описание ...
public static void VolatileWrite(ref object address, object value);
Writes a value to a field immediately, so that the value is visible to all processors in the computer. Полное описание ...
public static void VolatileWrite(ref sbyte address, sbyte value);
Writes a value to a field immediately, so that the value is visible to all processors in the computer. Полное описание ...
public static void VolatileWrite(ref short address, short value);
Writes a value to a field immediately, so that the value is visible to all processors in the computer. Полное описание ...
public static void VolatileWrite(ref uint address, uint value);
Writes a value to a field immediately, so that the value is visible to all processors in the computer. Полное описание ...
public static void VolatileWrite(ref UIntPtr address, UIntPtr value);
Writes a value to a field immediately, so that the value is visible to all processors in the computer. Полное описание ...
public static void VolatileWrite(ref ulong address, ulong value);
Writes a value to a field immediately, so that the value is visible to all processors in the computer. Полное описание ...
public static void VolatileWrite(ref ushort address, ushort value);
Writes a value to a field immediately, so that the value is visible to all processors in the computer. Полное описание ...
public static bool Yield();
Causes the calling thread to yield execution to another thread that is ready to run on the current processor. The operating system selects the thread to yield to. Полное описание ...
 
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3 April 2024 1:48
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Debugging Code
Debug.Assert(false) Debugging Code in C#
For debugging, option "Common Language Runtime Exceptions" see exceptions when a program is running C#
Attribute [Obsolete("My method is outdated. Do not use", false)] Warning when compiling code in the C#
Data Types C#
C# data types: number (bool, char, byte, int, long, float, double, decimal), text (string), enumeration (enum), class (class), structure (struct)
Structure Boolean in the C# it is a flag with values true or false (bool) and methods for conversion bool
Structure Int32 in the C# it is a signed integer (int) and methods for conversion int
Structure Single in the C# this is a floating-point number (float) and methods for conversion float
var ... Variable of any type in the C#. Example: var str = "Hello!";
Type dynamic in the C#
Default values in the C#
Storing objects in memory. Removing Objects from Memory
Reference types and value types in the C#
Stack (stack) - memory for method parameters and local variables in the C#
Heap - dynamic memory available at run time in the C#
Interface IDisposable. Write code to properly release unmanaged resources in the destructor and in the interface IDisposable in the C#
Memory. Garbage collector (garbage collector). Automatic memory freeing in the C#
C# type conversion
C# converting a string to a number (string → short, int, long, ushort, uint, ulong, float, double, decimal) | Use Culture (system settings)
C# converting a number to a string (int, double, short, ... → string) with the required accuracy
Text in C# (type string and class String)
Algorithm for intersecting rectangles
What is text in the C# ? Type string and class String. Methods for working with text.
Length (string length in C#). Example: string str1 = "Hello"; int v1 = str1.Length;
CompareTo (compares case-sensitive text in C#). Example: bool bIsSame = str1.CompareTo(str2)==0;
ToLower (converts text to lowercase in C#). Example: string str1 = "HELLO World!"; string str2 = str1.ToLower();
ToUpper (converts text to uppercase in C#). Example: string str1 = "Hello World!"; string str2 = str1.ToUpper();
Split (split the string into words in C#). Example: string[] arrWords = strText.Split(" ");
StartsWith (checks the beginning of the text with the specified case-sensitive text in C#). Example: bool bStart = str1.StartsWith(str2);
Contains (checks whether the text specified is case-sensitive or not in case-sensitive C#). Example: bool bFound = str1.Contains(str2);
IndexOf (searches for a case-sensitive string and returns the position in C#). Example: int pos = str1.IndexOf(str2);
Substring (returns part of the text from the specified position and length in the C#). Example: string str1 = "Hello World!"; string str2 = str1.Substring(2, 5);
IsNullOrEmpty (checks the text for blank or for null in the C#). Example: string name = "Hello World!"; bool bFlag = String.IsNullOrEmpty(name);
IsNullOrWhiteSpace (validates text on null or on text with spaces in the C#). Example: string name = "   "; bool bFlag = String.IsNullOrWhiteSpace(name);
[] (returns a character from the specified position in the C#). Example: char symbol = str[1];
Format (text formatting, strings in the C#). Example: string strNew = String.Format("Hello {0}, {1}", name, year);
+ (add lines and text in the C#). Example: string str = str1 + str2 + " people!";
$ (string interpolation in the C#). Example: string result = $"Hello {a} + {b} = {a + b}";
Symbol @ before the beginning of the line in the C#. Example: string str1 = @"aaa";
Use @ and $ together (C# string interpolation)
DateTime in C#
What is DateTime in C# ? Convert to a string with the format
Enumerations in C # (enum)
What is enumeration? (enum) in the C# ?
How to convert text to enum in C#
How to enumerate all elements in enum in C#
null
null value for simple types. Use ? or Nullable in the C#
Operator ?? (null-union) in the C#
try-catch
Exception handling in C#. Operator try catch finally
Classes in C# (class)
What is a class? in the C#?
Class Access Modifiers in the C#. Access modifiers for methods, properties, fields in the C#
"partial class" in the C#. Description of the class in different files
[bgcolor=#F5F9DB]Constructors for a class[/bgcolor]
Class Constructor in the C#
Initializing a Class Object (set values for fields) in the C#
To call the constructor at the base class in the C#
Static constructor in class C#
"base" To call a method from the base class. To call a variable from the base class. To call the constructor from the base class. C#
"this" To set or get a value from a class field. To call the constructor from the class. C#
[bgcolor=#F5F9DB]Class Destructors[/bgcolor]
Class Destructor in the C#
Destructors in classrooms (how basic destructors are called) C#
[bgcolor=#F5F9DB]Inheritance[/bgcolor]
What is class inheritance in C# ?
[bgcolor=#F5F9DB]Inheritance using new[/bgcolor]
Use new for the interface method. Inheriting an interface from an interface with the same method
Use new for the class method. Inheriting a class from a class in C#.
[bgcolor=#F5F9DB]Inheritance using sealed[/bgcolor]
sealed class. Prohibition to inherit in the C#
Inheriting a class from a class in C#. We use words virtual, override, sealed for class methods
[bgcolor=#F5F9DB]Abstract class[/bgcolor]
What is an abstract class? in the C# ? Abstract methods, properties, indexes.
Inheritance from a class abstract in the C#. Use abstract and override for class methods
[bgcolor=#F5F9DB]Constants and readonly [E_M_P_T_Y] fields in the classroom[/bgcolor]
Constants in the classroom C#
readonly . For a class field. This field is read-only in C#
[bgcolor=#F5F9DB]Properties get and set in the classroom C# (accessors)[/bgcolor]
get set Properties in a class C#
Inheritance (virtual, override) for get and set accessors in C#
[bgcolor=#F5F9DB]Operators, indexers in C#[/bgcolor]
Operators in a C# class. Operator overload: > < ++ + true false
Indexers in Class C#
[bgcolor=#F5F9DB]Nested types in C#[/bgcolor]
Nested class, structure in C#
[bgcolor=#F5F9DB]Parameters in the C#[/bgcolor] class method
ref and out (return parameters by reference in the C# method). Example: public void AddValue(ref int value)
Default parameters (optional parameters) in a C# method. Example: public int CalculateSum(int a, int b, int c=7)
C# named parameters. Example: public void CalculateSum(a:7, b:3);
[bgcolor=#F5F9DB]Generic methods, generic classes in C# (templates)[/bgcolor]
A method with generic parameters in C# (templates). Example: public double Sum<T1, T2>(T1 value1, T2 value2) { ... }
A generic (typed) class in C# (templates). Example of a class Book<T> { ... }
where Type constraint in a generic (typed) class in C# (templates). Example of class Dog<T> where T : Cat
[bgcolor=#F5F9DB]Converting a class object from one type to another[/bgcolor]
explicit is an explicit conversion operator in the C class#
implicit is an implicit conversion operator in class C#
Converting a class object from one type to another in C#. Use try( ) is as
Converting a class object from one type to another in C#. Using pattern matching is switch
[bgcolor=#F5F9DB]Class object in C#[/bgcolor]
? conditional null operator in C#
The class object contains a reference in C#
How do you copy objects in C# to copy class data instead of a reference?
[bgcolor=#F5F9DB]Static constructor and static properties and methods[/bgcolor]
Static constructor in class C#
Static methods, properties, members in class C#
[bgcolor=#F5F9DB]Additional class features in C#[/bgcolor]
The extension method in C# (this in the first parameter of the method). Example: static public void AddValues(this List<int> myList, int value1, int value2)
[bgcolor=#F5F9DB]Class naming conventions in C#[/bgcolor]
What letters, lowercase or uppercase, to call classes, methods, properties... in C#
Is it correct to create a separate .cs file for each class in C#? Or write C# classes in a single .cs file?
Static Class
Static Class in C#
Anonymous Class
An object with an anonymous (missing) type in C#. Example: var book = new { BookName = "Lord of the Rings", Price = 100 };
Interfaces
What is interface in C#?
Inheriting the interface from the interface in C#
Inheriting a class from an interface class in C#. Using override and virtual for class methods
Generalized (typed) interface in C# (templates). Example interface IUser<T> { ... }
Struct structure
What is a structure in C#?
Structure access modifiers in C#. Access Modifiers for Methods, Properties, Struct Fields in C#
Initializing a Structure Object (Setting Values for Fields) in C#
How to change the value in an array of structures or in a collection of structures (List) in C#
Nested structure in C#
[bgcolor=#F5F9DB]Converting a struct object from one type to another[/bgcolor]
implicit is an implicit struct-to-C conversion operator#
explicit is an explicit struct-to-C conversion operator#
Lazy class loading in C#
Lazy Object Creation in Memory (class Lazy in C#)
Tuples
Tuples in C#
Dynamic objects with any properties
DynamicObject and ExpandoObject in C#
Arrays
What are arrays? array in C#
Initializing an Array (Populating the Array Elements) in C#
params passing any number of parameters to a method in C#
Array class C#
Collection
What are collections in C#?
What are non-generic collections in C#? ArrayList, Stack, Queue, Hashtable, SortedList, BitArray classes
What are generic (typed) collections in C#? The classes are List<T>, SortedList<T>, Stack<T>, Dictionary<TKey, TValue>, LinkedList<T>, Queue<T>, HashSet<T>, SortedSet<T>, ConcurrentDictionary<TKey, TValue>, SortedDictionary<TKey, TValue>
Non-generic collection classes (different types of items are stored in the same collection)
IEnumerable interface. The most basic interface for collections in C#
Interfaces: ICollection, IList, IDictionary. The basis for collections in C#
ArrayList class (collection in C#)
What is ArrayList in C#?
SortedList class (collection in C#)
What is SortedList in C#?
Stack class (collection in C#)
What is Stack in C# ?
Queue class (collection in C#)
What is Queue in C# ?
Hashtable class (collection in C#)
What is a Hashtable in C# ?
BitArray class (collection in C#)
What is BitArray in C#?
Generic, typed collection classes in C# (elements of the same type are stored in the same collection)
IEnumerable interface<T>. The most basic interface for typed collections in C#
Interfaces: ICollection<T>, IList<T>, ISet<T>, IDictionary<TKey, TValue>. Basis for typed collections in C#
List class<T> (typed collection in C#)
What is List<T> in C#?
Initializing the Collection List in curly brackets in the C#
for, foreach (go through all the items in the List<T>) in C#
Find (looking for an item by criterion in the List<T>) in C#
FindAll (looking for a list of items by criterion in the List<T>) in C#
ForEach (for each List element an<T> action is performed) in C#
LinkedList class<T> (typed collection in C#)
What is LinkedList<T> in C# ?
SortedList<TKey, TValue> class (typed collection in C#)
What is SortedList<TKey, TValue> in C# ?
Stack class<T> (typed collection in C#)
What is Stack<T> in C# ?
Queue class<T> (typed collection in C#)
What is Queue<T> in C# ?
HashSet class<T> (typed collection in C#)
What is a HashSet<T> in C# ?
How HashSet works<T> in C#
SortedSet class<T> (typed collection in C#)
What is a SortedSet<T> in C#?
ObservableCollection class<T> (typed collection in C#)
What is ObservableCollection<T> in C#?
Dictionary<TKey, TValue> class (typed collection in C#)
What is Dictionary<TKey, TValue> in C# ?
Initializing Elements in the Dictionary<TKey, TValue> Constructor in C#
How Dictionary<TKey, TValue> works in C#
How to convert IEnumerable to → Dictionary in C#<TKey, TValue> . Using the ToDictionary method
SortedDictionary<TKey, TValue> class (typed collection in C#)
What is SortedDictionary<TKey, TValue> in C# ?
ConcurrentDictionary<TKey, TValue> class (typed collection in C#)
What is ConcurrentDictionary<TKey, TValue> in C# ?
AddOrUpdate (add or update a value by key in ConcurrentDictionary<TKey, TValue>) in C#
Asymptotic complexity for adding, removing, taking an item in collections
Asymptotic complexity for adding, removing, taking an element in collections C# (List, SortedList, Stack, Dictionary, LinkedList, Queue, HashSet, SortedSet, ConcurrentDictionary, SortedDictionary)
Sorting Elements in the [] Array and List <T>Collection
Sorting elements in the [] array and List collection<T> in C#. IComparable interface
Sorting elements in the [] array and List collection<T> in C#. IComparer interface
My implementation of IEnumerator, IEnumerable, and iterators
Example: My implementation of the IEnumerable and IEnumerator interfaces in C#
Iterators and yield in C#. Examples of IEnumerable implementation with yield
Extension Methods for IEnumerable<T> (Search, Replace, Value Sampling) in C#
Methods for finding, replacing, and fetching values in IEnumerable<T>. Extension methods for IEnumerable<T> in C#
Any (IEnumerable extension method<T>) in C#
Select (IEnumerable extension method<T>) in C#
GroupBy (extension method IEnumerable<T>) in the C#
GroupJoin (extension method IEnumerable<T>) in the C#
Sorting, filtering in LINQ (Language-Integrated Query)
What is LINQ in C#?
Sorting, filtering list items using LINQ in C#
Books for learning LINQ in C#
Pointers
Pointers in C#. Operator unsafe
Pointers to structs, class fields, arrays in C#. Operators unsafe, stackalloc, fixed
Working with files
Open the file, read the text from the file and break it down by words. C#
Create a text file, write the text to a C file#
Create an HTML file, write tabular data in an HTML file | C#
Create a binary file, write bytes to file C#
Partial upload of a file from FTP to C#
Class Path. Combine method - merges the strings into the full path of the file. And other methods of the Path class | C#
Serialization
What is object serialization in C#? [Serializable] attribute
Serializing a C# object into a binary file. BinaryFormatter class. [Serializable] attribute
Serializing a C# object into an XML file. XmlSerializer class. [Serializable] attribute
Serialization of a C# object into a JSON file. DataContractJsonSerializer class. [Serializable] attribute
Serializing a C# object into a SOAP file. SoapFormatter class. [Serializable] attribute
Namespaces
Namespace using in C#
Delegate
Delegate in C#
Add method(s) in a C# delegate. Unification of delegates. Removing a Method from a Delegate
Delegate as a parameter in method C#
Unnamed, anonymous method in C# (method described in place of parameter, delegate)
Universal Delegates
Generic, generic delegates in C# (templates)
Action, Predicate, and Func Universal Delegates in C#
Events
Events in C#
Lyamda
Lamda (example) in C#
Regular expressions
Regular Expressions in C#
Breaking the text into words (regular expressions in c#)
Put * instead of the last name after the first letter (regular expressions in c#)
Breaking the text into words (regular expressions in c#)
Process, process modules
Process in C# (Process class)
Process modules in C# (ProcessModule class)
Threads, multithreading
Threads in C# (Thread class)
Thread Pool in C#
What"s the difference between background and foreground in C#?
Synchronizing Threads in C#
Parallel Library Task (TPL)
Parallel Library Task (TPL). Parallel Task Library in C#
The Parallel class uses the Invoke method to execute the for and foreach (on different CPU cores) methods in parallel in C#
PLINQ parallelizes LINQ queries to run on different processor cores in C#
Asynchronous methods (async and await)
class Task in C#
Asynchronous programming in C# (async, await how to formalize)
Asynchronous programming in C# (using async, await, and Task as an example)
Asynchronous Programming in C# (Theory)
Application domains
What are Application Domains in C# ? (AppDomain class)
Example "Application domain information" (current domain name, list assemblies) in C#
Example "Let"s create the 2nd application domain. Write the class in the 1st domain and use it in the 2nd domain. MarshalByRefObject in C#
Example "Load the 2nd domain of the application from a file, run the calculations, unload the 2nd domain from memory" to C#
Attributes
Attributes for Class, Method, Property in C#
Attribute [Conditional("AAA")] . For compilation, ignore a method or property unless a conditional compilation symbol is defined in C#
Attribute [Obsolete("My method is outdated. Do not use", false)] Warning when compiling code in the C#
The [Display(Name="Sleep at night")] attribute. To store some text attached to a variable | C#
The attribute [Required(ErrorMessage = "Please enter a name")] is described for a property in the C# class and requires the property to be populated if the ErrorMessage error in the MVC ASP.NET is not filled in the screen
The attribute [Remote("IsValidAuthor", "Home", ErrorMessage = "Enter correct author of book")] is described for a property in a C# class and checks that property for correctness on the server via the IsValidAuthor method in conroller Home, if the method returns false, then there will be an ErrorMessage error on the screen in the MVC ASP.NET
Reflection in C#
Nameof operator in C# (class name, method name, variable name)
What is reflection in C#? Type Class
Creating a class object and calling the constructor with parameters using reflection in C#
How to get attribute information for a method from a class. Using reflection | C#
How to get attribute information for a property of a class. Using reflection | C#
How to change the set property in a class if private using reflection | C#
Preprocessor directives (if on compilation)
#define #undef #if #elif #else #endif preprocessor directives in C#
How do I define #define for all files (for the entire project) in C#?
What is the CLR assembly and runtime?
Assembly (Assembly) in C#. Compilation. Intermediate code IL (Intermediate Language). Metadata.
How to include a C# assembly in a project?
Utility ildasm.exe. Converts an assembly (C# exe, dll file) to an intermediate language (IL). This utility is easy to learn
The runtime CLR (Common Language Runtime) in C# . JIT (Just-In-Time) compiler.
Creating and connecting our build
Creating our C# build (regular build)
Connecting our C# build (regular build)
Creating our C# assembly (split assembly)
Connecting our C# assembly (split assembly)
Database in Console Application C#
Entity Framework in a C# console application. Using Code First (we write c# code, and the tables in the database are created by ourselves)
Read the image from the database and save it to a file | ADO.NET, C#, console application
DI Dependency Injection in C#
Dependency injection in C# | Dependency Injection (DI)
Ninject (IoC container) dependency management in C#
Autofac (IoC container) dependency management in C#
Convenient Visual Studio utilities
View Class Diagram in C#
exe to C# code
"dotPeek" application for decompile (disassemble) exe to c# source code
In a C# application, call the C++ functions
What are managed code (managed code) and unmanaged code (unmanaged code)? | C# and C++
Marshaling (marshalling) in C#. Type Conversion Between Managed Code (managed code) and Unmanaged Code (unmanaged code)
In the application C# we call functions from Windows dll (C++ WinAPI). Attribute [DllImport("user32.dll")]
In a C# application, call functions from my dll (C++). Attribute [DllImport("My.dll", CallingConvention = CallingConvention.Cdecl)]
Additional topics, questions
You don"t create a new project in Visual Studio 2019. Object reference not set to instance of an object"
C# compilation error: error CS1106: Extension method must be defined in a non-generic static class
C# compilation error: error CS0246: The type or namespace name "Point" could not be found (are you missing a using directive or an assembly reference?)
Why can"t the Dictionary.TryGetValue method find a value by key in C#?
Object-oriented programming (OOP). OOP Principles: Abstraction, Encapsulation, Inheritance, Polymorphism
What letters in C# (uppercase or lowercase or uppercase) should we use to name fields, methods in a class, interfaces, delegates, parameters?
Is it correct to create a separate .cs file for each class in C#? Or write C# classes in a single .cs file?
Is it better to use a built-in int type or an Integer class (string type or String class) in C#?
How do I download and install the version of the .NET Framework I want in Visual Studio?
Boxing and unboxing meaningful types in C#
Error CS8107 Feature "default literal" is not available in C# 7.0. Please use language version 7.1 or greater
Error "unable to connect to web server "iis express" | C# | Visual Studio 2017
Uninstall and install NuGet in Visual Studio
When opening a project in Visual Studio 2019 error: "project requires "SQL Server 2012 Express LocalDB" which is not installed on this computer"
The checked and unchecked math operators
The unchecked math operator in C#
The checked math operator in C#
Additional C# classes
C# Random class
C# Structure Point
C# PointF structure
C# Size structure
C# SizeF structure
C# Rectangle Structure
C# RectangleF structure
It"s time
The amount of time that has elapsed since the system booted (in milliseconds). System.Environment.TickCount in C#
Encryption
Let"s encrypt the password and check it | C# console application
Excell
Reading an excel file in C# (console application)
WWW Sites to Learn C#
Websites to learn C#

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