Help on extension method doesn't include this parameter

When opening an extension method like Join, when you type the open parenthesis the pop-up help that provides the overloads do not include the this parameter in the parameter list, e.g. the Join help does not reference a parameter for TOuter.


  • Yes, that's by design. Because it displays the help for whatever parameter you're currently typing, there's no way to access the implicit first parameter, unless you call Join like this:

    Enumerable.Join (...
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