Attaching Eventhandler with New Handler vs Directly assigning it

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名媛妹妹
名媛妹妹 2020-12-03 15:31

What is the actual difference, advantages and disadvantages, of creating a new event handler, vs assigning it directly to the event?

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  • 2020-12-03 15:57

    In C# 2.0 and above, they are identical. In C# 1.2 (the one that shipped with .NET 1.1), only the first syntax (with new) compiles ;-p

    The second syntax saves key presses, but VS intellisense will typically suggest the first. Ultimately, it makes very little difference. I generally use the second syntax in code-samples online, simply because it avoids going over the (narrow) column width!

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  • 2020-12-03 16:10

    The compiler has enough information available to make the new EventHandler effectively syntactic sugar.

    It knows that you are attaching an event handler to an event, as only += and -= are valid at this point, so you don't need tell it what to do.

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