{"id":94,"date":"2026-05-21T17:38:20","date_gmt":"2026-05-21T17:38:20","guid":{"rendered":"https:\/\/gigz.pk\/csharp\/?post_type=lesson&#038;p=94"},"modified":"2026-05-21T17:38:42","modified_gmt":"2026-05-21T17:38:42","slug":"delegates","status":"publish","type":"lesson","link":"https:\/\/gigz.pk\/csharp\/?lesson=delegates","title":{"rendered":"Delegates"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Delegates in C# are powerful features that allow methods to be passed as parameters. They enable flexible and dynamic programming, especially in event handling and callback scenarios.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What are Delegates<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A delegate is a type-safe function pointer that holds a reference to a method. It allows methods to be assigned to variables and invoked later.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Why Delegates are Used<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Delegates are used to achieve flexibility in code by allowing methods to be passed and executed dynamically. They are commonly used in events and asynchronous programming.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How Delegates Work<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A delegate is declared with a specific signature. Only methods matching that signature can be assigned to it. Once assigned, the delegate can invoke the method.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Types of Delegates<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Single-cast Delegate<\/strong><br>Points to a single method.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Multi-cast Delegate<\/strong><br>Can reference multiple methods and invoke them in sequence.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Built-in Delegates<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Action<\/strong><br>Represents a method that does not return a value.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Func<\/strong><br>Represents a method that returns a value.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Predicate<\/strong><br>Represents a method that returns a boolean value.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Importance of Delegates<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Delegates provide a way to implement callback methods, improve code reusability, and support event-driven programming.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Real World Usage<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Delegates are used in event handling, UI applications, asynchronous tasks, and LINQ queries.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Advantages<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Supports flexible method execution<br>Enables callback functionality<br>Improves code reusability<br>Type-safe method references<br>Used in event-driven programming<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Common Mistakes<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Using incorrect method signatures<br>Overcomplicating delegate usage<br>Not understanding multicast behavior<br>Confusing delegates with methods<br>Ignoring built-in delegates<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Best Practices<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Use built-in delegates when possible<br>Keep delegate usage simple<br>Match method signatures correctly<br>Use delegates for callbacks and events<br>Write clean and readable code<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Lesson Summary<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Delegates in C# allow methods to be treated as variables, enabling flexible and dynamic programming. They are widely used in events, callbacks, and modern application development.<\/p>\n\n\n<div class=\"yoast-breadcrumbs\"><span><span><a href=\"https:\/\/gigz.pk\/csharp\">Home<\/a><\/span> \u00bb <span class=\"breadcrumb_last\" aria-current=\"page\">Professional C# > Advanced Concepts > Delegates<\/span><\/span><\/div>\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><\/div>\n","protected":false},"menu_order":59,"template":"","class_list":["post-94","lesson","type-lesson","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Delegates - Learn C# Language with GiGz.PK<\/title>\n<meta name=\"description\" content=\"Learn C# delegates. 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