Parameter Attributes and more

Fresh from Twitter, here are some ways to use attributes in C# that you might not know ...

Did you know you can put attributes on method parameters ...

public string MyMethod([MyCustomAttribute] int id)
{
    // ...
}

Did you know you can specify an attribute on the return of a method ...

[return: CrazyAttributeOnAReturnMethod(WithAParameterOfItsOwn = true)]
public string MyMethod(int id)
{
    // ...
}

For the record: I knew the first, but not the second ...