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Hidden Features of C#

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  • S Offline
    S Offline
    SalarSoft
    wrote on last edited by
    #1

    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>()); } }

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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>()); } }

      K Offline
      K Offline
      Kevin Drzycimski
      wrote on last edited by
      #2

      sorry, but if you look at the MSDN C# Reference http://msdn.microsoft.com/en-us/library/618ayhy6.aspx[^] and hit C# Operators you can see them at glance. Looks like there is some RTFM to do :-D

      S 1 Reply Last reply
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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>()); } }

        K Offline
        K Offline
        Kanasz Robert
        wrote on last edited by
        #3

        Hi, this is not a hidden feature. This feature is documented ;)

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        • K Kanasz Robert

          Hi, this is not a hidden feature. This feature is documented ;)

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          GenJerDan
          wrote on last edited by
          #4

          Yes, but no one reads the documentation. After attempting to find something relevent 17 times, we've all given up.

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          • G GenJerDan

            Yes, but no one reads the documentation. After attempting to find something relevent 17 times, we've all given up.

            K Offline
            K Offline
            Kevin Drzycimski
            wrote on last edited by
            #5

            well seriously, you should read this book http://blog.oncode.info/wp-content/uploads/2008/02/rtfm.png[^] perhaps you didn't read well, because after 17 iterations you should have your relevant information, if not, read it 17 times again

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            • K Kevin Drzycimski

              well seriously, you should read this book http://blog.oncode.info/wp-content/uploads/2008/02/rtfm.png[^] perhaps you didn't read well, because after 17 iterations you should have your relevant information, if not, read it 17 times again

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              G Offline
              GenJerDan
              wrote on last edited by
              #6

              Ja, und hinterher ein Nasenbär und keiner weiss warum. ;P

              K 1 Reply Last reply
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              • G GenJerDan

                Ja, und hinterher ein Nasenbär und keiner weiss warum. ;P

                K Offline
                K Offline
                Kevin Drzycimski
                wrote on last edited by
                #7

                GenJerDan wrote:

                Ja, und hinterher ein Nasenbär und keiner weiss warum.

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

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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

                  G Offline
                  G Offline
                  GenJerDan
                  wrote on last edited by
                  #8

                  :~ :laugh:

                  1 Reply Last reply
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                  • K Kanasz Robert

                    Hi, this is not a hidden feature. This feature is documented ;)

                    S Offline
                    S Offline
                    SalarSoft
                    wrote on last edited by
                    #9

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

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                    • K Kevin Drzycimski

                      sorry, but if you look at the MSDN C# Reference http://msdn.microsoft.com/en-us/library/618ayhy6.aspx[^] and hit C# Operators you can see them at glance. Looks like there is some RTFM to do :-D

                      S Offline
                      S Offline
                      SalarSoft
                      wrote on last edited by
                      #10

                      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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                      • 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.

                        K 1 Reply Last reply
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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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                            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

                              A Offline
                              A Offline
                              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]

                              F C 2 Replies 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]

                                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.

                                A 1 Reply Last reply
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                                • F fjdiewornncalwe

                                  Do I sense some sarcasm... :)

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

                                  A Offline
                                  A Offline
                                  AspDotNetDev
                                  wrote on last edited by
                                  #16

                                  I hope so! ;)

                                  [Forum Guidelines]

                                  1 Reply Last reply
                                  0
                                  • 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]

                                    A 1 Reply Last reply
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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]

                                      A Offline
                                      A Offline
                                      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:

                                        1 Reply Last reply
                                        0
                                        • 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?

                                          1 Reply Last reply
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