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Asked: 2026-06-01T06:13:58+00:00

With the [attribute] notation I can attach custom attributes to class instance methods. But

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With the [attribute] notation I can attach custom attributes to class instance methods. But if I write code like

menu.handlers[MOUSECLICK] += (clickEvent)delegate(event e) { ... };

the [attribute] notation seems not to be available. Am I limited to attributes for methods declared out of line, or is there a way to somehow do them for in-line anonymous methods declared using delegate() { … }?

(I happen to like the inline style: you have easy access to in-scope variables and I think it makes for a nicer and more compact kind of code where you can see what the event handler will do at the same place where you register it…)

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1 Answer

  1. Editorial Team

    The anonymous method is defined in-line and not as a member method of
    any class. Additionally, there is no way to apply custom attributes to
    an anonymous method, nor can the anonymous method define generic types
    or add generic constraints.

    Quoting from the MSDN Article – Create Elegant Code With Anonymous Methods, Iterators, And Partial Classes

    In Short NO!, You cannot add custom attributes for Anonymous methods

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