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What are multicast delegates, and where are they useful?

Expert C#
Quick Answer A multicast delegate holds a list of methods and calls them all in sequence when invoked. Use += to add a method and -= to remove it. Events are built on this. Useful for audit logging, notification pipelines, or any scenario where multiple subscribers need to react to one trigger.

Answer

Multicast delegates can reference multiple methods. When invoked, they call each method sequentially.

They are used for audit logging, notifications, UI event pipelines, and scenarios requiring multiple actions on a single trigger.

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