C# Interface

C# Interface defines a group of related functionality. An interface defines only the definition of the functionality. All classes and structures which inherit from interface must implement the functionality defined in an interface. We can not create an instance of interface. In the interface declaration variable, we can only store the instance of the object that impleme...

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WPF BackgroundWorker

To build more responsive WPF UI, we have to use multiple threads that can work in the background and update the UI when the work completed. But background threads can't access the objects created in the STA. Then how can we update the UI when the background threads completed their work?  WPF applications are based on Single Threaded Apartment Model (STA). Ob...

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C# Reflection Introduction

Reflection in C# is a big topic in itself. I'll summarize a little list of what you can do with reflection. Get currently executing assembly, load assembly, get assembly from type Get classes declared in assemblies Get methods, properties, fields, events, constructors declared in classes Check access modifiers of classes, properties, fields and me...

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C# Reflection - What is Assembly?

Assembly is the main unit in .NET applications. Assembly is a collection of types and its information. There are two types of assemblies: Executable files (EXE) Libraries (DLL) Both type of assemblies includes information about types and its members in its metadata. There are three ways to get Assembly instances: Geting assembly instance from type...

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C# Reflection - Type class

A Type class is an important class in C# reflection. Type class represents class types, interface types, array types, value types, enum types, type parameters, generic type definitions, and open/closed generic types. Type class helps you to find properties, methods, events, fields, and constructors declared in a type. It also provides us the Assembly in which the type is dec...

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C# Reflection - MemberInfo Class

MemberInfo class provides a quick look of all the members in a Type. Below is the same code to get all members of a Type. static void Main(string[] args) { Type type = typeof(Program); foreach(MemberInfo member in type.GetMembers()) { Console.WriteLine(member.Name + ":" + member.MemberType); } } MemberInfo MemberType property MemberInfo prov...

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C# Reflection - Getting Constructors

C# reflection Type class provides two methods for getting the constructors in any Type. GetConstructors() //Returns all the constructors GetConstructor() //Returns only the specific constructor with match your given criteria. By default, all the above methods returns public constructors of a Type. To get the private, protected, and static constructors you have to u...

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.NET Threading Interview Questions Series - Part 1

Q 1.  What is the difference between Process and Thread? A process is started when you start an Application. A process is a collection of resources like virtual address space, code, security contexts etc. A process can start multiple threads. Every process is start with a single thread called primary thread. You can create n number of threads in a process. Threads share...

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.NET Threading Interview Questions Series - Part 2

Q 21. What is the class hierarchy of wait handles? Q 22. What is ManualResetEvent and how it is different between AutoResetEvent? ManualResetEvent is also a synchronization mechanism similar to AutoResetEvent which works on bool variable. If the bool variable is false, it blocks the thread. If true, it unblocks the threads. ManualResetEvent provides the sa...

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C# Convert string to int

In C#, there are there ways for converting string to int. Each way has its own advantages and disadvantages. These ways are: int.Parse method int.TryParse method (Best way) Convert.ToInt32() method int.Parse method int.Parse method converts string input into integer. It takes the string input and returns int as output. static void Main(...

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