Design Pattern Training using C# - Day 9 | State, Template, Command and Visitor Design Patterns

13K views May 29, 2023

Design Pattern Training using C# - Day 9 | State, Template, Command, and Visitor Design Patterns in C# What is State Design Pattern in C#? According to Gang of Four Definitions, State Design Pattern in CSharp allows an object to alter its behavior when its internal state changes. In simple words, we can say that the State Design Pattern allows an object to completely change its behavior depending on its current internal state. What is the Template Method Design Pattern in C#? According to Gang of Four, Template Method Design Pattern in CSharp defines a sequence of steps of an algorithm and allows the subclasses to override the steps but is not allowed to change the sequence. What is the Command Design Pattern in C#? According to the Gang of Four definitions, Command Design Pattern in CSharp is used to encapsulate a request as an object (i.e. a command) and pass it to an invoker, wherein the invoker does not know how to serve the request but uses the encapsulated command to perform an action. What is the Visitor Design Pattern in C#? According to GOF Definition, in the Visitor Design Pattern in CSharp, we use a Visitor Object which changes the Executing Algorithm of an Element Object. In this way, when the visitor varies, the execution algorithm of the element object can also vary. Text Document Links used in the Video: State Design Pattern in C#: https://dotnettutorials.net/lesson/state-design-pattern/ Template Method Design Pattern in C#: https://dotnettutorials.net/lesson/template-method-design-pattern/ Command Design Pattern in C#: https://dotnettutorials.net/lesson/command-design-pattern/ Visitor Design Pattern in C#: https://dotnettutorials.net/lesson/visitor-design-pattern/

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