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  4. Missing extension methods in 3.5 [modified]

Missing extension methods in 3.5 [modified]

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  • M Mark06

    System.Collections.Generic sits in the System.Core assembly, which is referenced by default. :^)

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    Eslam Afifi
    wrote on last edited by
    #5

    No, only part of it. System.Collections.Generic.List<> is in mscorlib assembly, while System.Collections.Generic.Queue<> is in System assembly.

    Eslam Afifi

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    • E Eslam Afifi

      using System.Linq;

      and reference System.Core

      Eslam Afifi

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      Mark06
      wrote on last edited by
      #6

      using System.Linq, thats the one. Thanks Eslam!

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      • M Mark06

        using System.Linq, thats the one. Thanks Eslam!

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        Eslam Afifi
        wrote on last edited by
        #7

        You're welcome.

        Eslam Afifi

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        • E Eslam Afifi

          using System.Linq;

          and reference System.Core

          Eslam Afifi

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          PIEBALDconsult
          wrote on last edited by
          #8

          Therein lies a great deal of what I don't like about extension methods.

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          • P PIEBALDconsult

            Therein lies a great deal of what I don't like about extension methods.

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            N Offline
            Not Active
            wrote on last edited by
            #9

            and what might that be?


            only two letters away from being an asset

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            • N Not Active

              and what might that be?


              only two letters away from being an asset

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              PIEBALDconsult
              wrote on last edited by
              #10

              People not knowing where they are and not even knowing that they are extension methods. At least as regular static methods it's clearer that the method is not part of the type. Exension methods are a form of obfuscation. But that's just me.

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              • P PIEBALDconsult

                People not knowing where they are and not even knowing that they are extension methods. At least as regular static methods it's clearer that the method is not part of the type. Exension methods are a form of obfuscation. But that's just me.

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                N a v a n e e t h
                wrote on last edited by
                #11

                PIEBALDconsult wrote:

                even knowing that they are extension methods.

                VS shows extension methods with a different icon in intellisense, right?

                Navaneeth How to use google | Ask smart questions

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                • N N a v a n e e t h

                  PIEBALDconsult wrote:

                  even knowing that they are extension methods.

                  VS shows extension methods with a different icon in intellisense, right?

                  Navaneeth How to use google | Ask smart questions

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                  PIEBALDconsult
                  wrote on last edited by
                  #12

                  Not everyone uses VS. Snippets of code posted here don't have intellisense either. Nor do printouts Don't rely on the behaviour of any one tool.

                  modified on Friday, January 23, 2009 1:26 AM

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                  • P PIEBALDconsult

                    Not everyone uses VS. Snippets of code posted here don't have intellisense either. Nor do printouts Don't rely on the behaviour of any one tool.

                    modified on Friday, January 23, 2009 1:26 AM

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                    Mark Churchill
                    wrote on last edited by
                    #13

                    The semantics of an extension method are correct, and they increase code readability. They are certainly preferable than buggering up the type heirarchy with things like "MyListWithExtraStuff : List". They also allow you to extend any type which supports a particular interface, which is a powerful feature - almost like half-baked multiple inheritance. myFoo.Baz(bar); Is Baz an extension method? Does it matter? As long as it "bazzes" as documented, then it is no different from a normal method.

                    Mark Churchill Director, Dunn & Churchill Pty Ltd Free Download: Diamond Binding: The simple, powerful, reliable, and effective data layer toolkit for Visual Studio.
                    Entanglar: .Net game engine featuring automatic networking and powerful HLSL gfx binding.

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                    • M Mark Churchill

                      The semantics of an extension method are correct, and they increase code readability. They are certainly preferable than buggering up the type heirarchy with things like "MyListWithExtraStuff : List". They also allow you to extend any type which supports a particular interface, which is a powerful feature - almost like half-baked multiple inheritance. myFoo.Baz(bar); Is Baz an extension method? Does it matter? As long as it "bazzes" as documented, then it is no different from a normal method.

                      Mark Churchill Director, Dunn & Churchill Pty Ltd Free Download: Diamond Binding: The simple, powerful, reliable, and effective data layer toolkit for Visual Studio.
                      Entanglar: .Net game engine featuring automatic networking and powerful HLSL gfx binding.

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                      PIEBALDconsult
                      wrote on last edited by
                      #14

                      Mark Churchill wrote:

                      The semantics of an extension method are correct

                      Because they added those semantics.

                      Mark Churchill wrote:

                      they increase code readability

                      My opinion is that they do just the opposite.

                      Mark Churchill wrote:

                      any type which supports a particular interface

                      Just like regular static methods.

                      Mark Churchill wrote:

                      almost like half-baked multiple inheritance

                      You may be onto something there. Or maybe just on something. :-D

                      Mark Churchill wrote:

                      Does it matter?

                      Of course it makes a difference. Not to the original developer, not to the compiler, but when communicated between developers, particularly inexperienced ones. I'm well aware that I take the minority view on this and many other things, but I'm not the only one. Others [weasel words] have the same and other concerns. I do write an occasional extension method (see my recent "Untabify and Tabify"[^] article), but I try to make it clear that extension methods are in use.

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