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Hidden Features of C#

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  • S SalarSoft

    I know, actually this is title of stackoverflow topic! There are keywords that are not documented.

    R Offline
    R Offline
    riced
    wrote on last edited by
    #11

    SalarSoft wrote:

    There are keywords that are not documented.

    Tried reading the language specs? That documents them. I had a quick look at the StackOverflow link - if these are hidden features they can't have been looking at anything beyond C# in 5 :laugh: minutes.

    Regards David R --------------------------------------------------------------- "Every program eventually becomes rococo, and then rubble." - Alan Perlis The only valid measurement of code quality: WTFs/minute.

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    • S SalarSoft

      Hidden Features of C# Personally I like ?? operator and started using it since then:

      private IList<Foo> _foo;

      public IList<Foo> ListOfFoo
      { get { return _foo ?? (_foo = new List<Foo>()); } }

      C Offline
      C Offline
      Chris Maunder
      wrote on last edited by
      #12

      Hidden? You have to be kidding me. Each iteration of C# has been preceeded with a barrage of evangalism and education, and to be unaware of things such as "as" can only mean one has had one's head firmly buried in the sand. readonly? hidden? :doh:

      cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

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      • C Chris Maunder

        Hidden? You have to be kidding me. Each iteration of C# has been preceeded with a barrage of evangalism and education, and to be unaware of things such as "as" can only mean one has had one's head firmly buried in the sand. readonly? hidden? :doh:

        cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

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        S Offline
        SalarSoft
        wrote on last edited by
        #13

        Actually I just copied the stackoverflow title! have you guys noticed __makeref ? http://stackoverflow.com/questions/9033/hidden-features-of-c/9125#9125[^] more info: http://www.eggheadcafe.com/articles/20030114.asp[^] There are good tricks too. Worth reading that, but should I change this topic title?!

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        • C Chris Maunder

          Hidden? You have to be kidding me. Each iteration of C# has been preceeded with a barrage of evangalism and education, and to be unaware of things such as "as" can only mean one has had one's head firmly buried in the sand. readonly? hidden? :doh:

          cheers, Chris Maunder The Code Project | Co-founder Microsoft C++ MVP

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          AspDotNetDev
          wrote on last edited by
          #14

          Actually, it does seem very obscure. Much like this operator I stumbled upon the other day:

          int x = 5 + 1;

          Much to my surprise, this operator actually performs TWO distinct operations, depending on context!

          string x = "5" + "1";

          My God! An operator that BOTH adds integers AND concatenates strings. I believe it even works on non integral types. Truly a Jack of all trades! Disclaimer: this post is a joke.

          [Forum Guidelines]

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          • A AspDotNetDev

            Actually, it does seem very obscure. Much like this operator I stumbled upon the other day:

            int x = 5 + 1;

            Much to my surprise, this operator actually performs TWO distinct operations, depending on context!

            string x = "5" + "1";

            My God! An operator that BOTH adds integers AND concatenates strings. I believe it even works on non integral types. Truly a Jack of all trades! Disclaimer: this post is a joke.

            [Forum Guidelines]

            F Offline
            F Offline
            fjdiewornncalwe
            wrote on last edited by
            #15

            Do I sense some sarcasm... :)

            I wasn't, now I am, then I won't be anymore.

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            • F fjdiewornncalwe

              Do I sense some sarcasm... :)

              I wasn't, now I am, then I won't be anymore.

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              A Offline
              AspDotNetDev
              wrote on last edited by
              #16

              I hope so! ;)

              [Forum Guidelines]

              1 Reply Last reply
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              • A AspDotNetDev

                Actually, it does seem very obscure. Much like this operator I stumbled upon the other day:

                int x = 5 + 1;

                Much to my surprise, this operator actually performs TWO distinct operations, depending on context!

                string x = "5" + "1";

                My God! An operator that BOTH adds integers AND concatenates strings. I believe it even works on non integral types. Truly a Jack of all trades! Disclaimer: this post is a joke.

                [Forum Guidelines]

                C Offline
                C Offline
                Chris Meech
                wrote on last edited by
                #17

                It's a good thing it's obscure, because the second use gives a result of 51 when the correct answer is 6. ;)

                Chris Meech I am Canadian. [heard in a local bar] In theory there is no difference between theory and practice. In practice there is. [Yogi Berra] posting about Crystal Reports here is like discussing gay marriage on a catholic church’s website.[Nishant Sivakumar]

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                • C Chris Meech

                  It's a good thing it's obscure, because the second use gives a result of 51 when the correct answer is 6. ;)

                  Chris Meech I am Canadian. [heard in a local bar] In theory there is no difference between theory and practice. In practice there is. [Yogi Berra] posting about Crystal Reports here is like discussing gay marriage on a catholic church’s website.[Nishant Sivakumar]

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                  AspDotNetDev
                  wrote on last edited by
                  #18

                  Chris Meech wrote:

                  the second use gives a result of 51 when the correct answer is 6

                  Aw noo! I must go back and correct all teh codez for my area summation algorithm! I don't want my boss to see this mistake... time for an area 51 cover-up.

                  [Forum Guidelines]

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                  • K Kevin Drzycimski

                    GenJerDan wrote:

                    Ja, und hinterher ein Nasenbär und keiner weiss warum.

                    oh, der kam unerwartet. aber werde ich mir merken :-D

                    S Offline
                    S Offline
                    swatadas
                    wrote on last edited by
                    #19

                    :laugh:

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                    • S SalarSoft

                      Hidden Features of C# Personally I like ?? operator and started using it since then:

                      private IList<Foo> _foo;

                      public IList<Foo> ListOfFoo
                      { get { return _foo ?? (_foo = new List<Foo>()); } }

                      M Offline
                      M Offline
                      maq_rohit
                      wrote on last edited by
                      #20

                      hidden?

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                      • R riced

                        SalarSoft wrote:

                        There are keywords that are not documented.

                        Tried reading the language specs? That documents them. I had a quick look at the StackOverflow link - if these are hidden features they can't have been looking at anything beyond C# in 5 :laugh: minutes.

                        Regards David R --------------------------------------------------------------- "Every program eventually becomes rococo, and then rubble." - Alan Perlis The only valid measurement of code quality: WTFs/minute.

                        K Offline
                        K Offline
                        Keith Barrow
                        wrote on last edited by
                        #21

                        Actually,, undocumented keywords do exist in c#. They are undocumented as MS don't want us to use them (e.g. there is a high potential for a visit from the FU Fairy). See http://davesbox.com/archive/2008/12/29/documenting-undocumented-features.aspx[^]

                        Sort of a cross between Lawrence of Arabia and Dilbert.[^]
                        -Or-
                        A Dead ringer for Kate Winslett[^]

                        R 1 Reply Last reply
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                        • K Keith Barrow

                          Actually,, undocumented keywords do exist in c#. They are undocumented as MS don't want us to use them (e.g. there is a high potential for a visit from the FU Fairy). See http://davesbox.com/archive/2008/12/29/documenting-undocumented-features.aspx[^]

                          Sort of a cross between Lawrence of Arabia and Dilbert.[^]
                          -Or-
                          A Dead ringer for Kate Winslett[^]

                          R Offline
                          R Offline
                          riced
                          wrote on last edited by
                          #22

                          Keith Barrow wrote:

                          undocumented keywords

                          That looks like an oxymoron - but that's a debate about semantics. There are identifiers, such as __reftype, that act as though they are keyword in .Net but are not specified as keywords in the C# language. These are implementation details so may not be 'keywords' in e.g. Mono. I don't know of a better way to describe such identifiers than 'undocumented keywords' but the phrase leaves me with bad taste - rather like beetroot. :)

                          Regards David R --------------------------------------------------------------- "Every program eventually becomes rococo, and then rubble." - Alan Perlis The only valid measurement of code quality: WTFs/minute.

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                          • S SalarSoft

                            Hidden Features of C# Personally I like ?? operator and started using it since then:

                            private IList<Foo> _foo;

                            public IList<Foo> ListOfFoo
                            { get { return _foo ?? (_foo = new List<Foo>()); } }

                            M Offline
                            M Offline
                            Monjurul Habib
                            wrote on last edited by
                            #23

                            I think this is not hidden features .. most of C# developers already know this and this is available everywhere.

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                            • M Monjurul Habib

                              I think this is not hidden features .. most of C# developers already know this and this is available everywhere.

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                              L Offline
                              Lost User
                              wrote on last edited by
                              #24

                              I do agree !

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                              0
                              • S SalarSoft

                                RTFM is done for C#2 and upgraded for C#3 and 4, but still seems I missed some features during upgrade! it happens ;P

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                                the headless nick
                                wrote on last edited by
                                #25

                                What is RTFM :cool::

                                --- With regards... The nk.

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