method-group

Cannot convert from ‘method group’ to ‘System.Action’ error

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DelegatedCall expects a delegate that takes any object as an argument. But your function foo1 that you are passing to DelegatedCall can only cope with a string argument. So, the conversion isn’t type-safe and thus is not possible. Input parameters are contra-variant, but your code needs covariance. (See Difference between Covariance & Contra-variance.) You can … Read more

What is a method group in C#?

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A method group is the name for a set of methods (that might be just one) – i.e. in theory the ToString method may have multiple overloads (plus any extension methods): ToString(), ToString(string format), etc – hence ToString by itself is a “method group”. It can usually convert a method group to a (typed) delegate … Read more

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