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Strong Typing

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  • D dighn

    But then you have to go back to where you were. Sure you could take note of the position but it would still be annoying.

    J Offline
    J Offline
    jhwurmbach
    wrote on last edited by
    #26

    Those points that are the hotspots of my current working are CTRL-F2-bookmarked anyway. And if I only want to know the type of a variable, Intellisense would open that little tooltip for me. I all boils down to being simply personal style, I guess.


    Failure is not an option - it's built right in.

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    • J John R Shaw

      Wrong! Unless you are talking about how hard you hit the keys on your keyboard.

      INTP "Program testing can be used to show the presence of bugs, but never to show their absence."Edsger Dijkstra

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      Pete OHanlon
      wrote on last edited by
      #27

      Errm - I'm not sure if you are being subtly ironic here, or you missed the joke icon on my post. I'll give you the benefit of the doubt and go with subtly ironic.

      Deja View - the feeling that you've seen this post before.

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      • J John R Shaw

        What are you talking about? If you are talking about variable type checking in C++, then you are wrong. I wish C was as tight with its type checking. Then again I wish C would allow me to declare a variable where ever I wanted too, instead of forcing me to create a new scope. P.S. I liked C, but I love C++.

        INTP "Program testing can be used to show the presence of bugs, but never to show their absence."Edsger Dijkstra

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        Tristan Rhodes
        wrote on last edited by
        #28

        Actualy it arose from some code i wrote in .Net. I wrapped a generic HttpSession collection in something that exposed typed properties for each of the items it contained, And was told it was a total waste of my time. T

        ------------------------------- Carrier Bags - 21st Century Tumbleweed.

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        • T Tristan Rhodes

          Actualy it arose from some code i wrote in .Net. I wrapped a generic HttpSession collection in something that exposed typed properties for each of the items it contained, And was told it was a total waste of my time. T

          ------------------------------- Carrier Bags - 21st Century Tumbleweed.

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          Marcus J Smith
          wrote on last edited by
          #29

          Tristan Rhodes wrote:

          And was told it was a total waste of my time.

          Why?


          CleaKO

          "I think you'll be okay here, they have a thin candy shell. 'Surprised you didn't know that.'" - Tommy (Tommy Boy)
          "Fill it up again! Fill it up again! Once it hits your lips, it's so good!" - Frank the Tank (Old School)

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          • M Marcus J Smith

            Tristan Rhodes wrote:

            And was told it was a total waste of my time.

            Why?


            CleaKO

            "I think you'll be okay here, they have a thin candy shell. 'Surprised you didn't know that.'" - Tommy (Tommy Boy)
            "Fill it up again! Fill it up again! Once it hits your lips, it's so good!" - Frank the Tank (Old School)

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            T Offline
            Tristan Rhodes
            wrote on last edited by
            #30

            Because the general concencus was that "It's the most pointless piece of code" they had ever seen. :S

            ------------------------------- Carrier Bags - 21st Century Tumbleweed.

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            • T Tristan Rhodes

              Because the general concencus was that "It's the most pointless piece of code" they had ever seen. :S

              ------------------------------- Carrier Bags - 21st Century Tumbleweed.

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              PIEBALDconsult
              wrote on last edited by
              #31

              I'd have to see the code.

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              • P PIEBALDconsult

                John R. Shaw wrote:

                Then again I wish C would allow me to declare a variable where ever I wanted

                I prefer to have all the declarations in one place (the top) so in C# I still do that by choice. But requiring such isn't very friendly, flexibility is good.

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                Chris Maunder
                wrote on last edited by
                #32

                ewwww! Declare the variables as close to their first use as possible. I have spoken.

                cheers, Chris Maunder

                CodeProject.com : C++ MVP

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                • T Tristan Rhodes

                  Because the general concencus was that "It's the most pointless piece of code" they had ever seen. :S

                  ------------------------------- Carrier Bags - 21st Century Tumbleweed.

                  M Offline
                  M Offline
                  Marcus J Smith
                  wrote on last edited by
                  #33

                  Maybe it was just the code. Strong typing is a good way to control up front what type of information you are looking for rather than waiting for it to hit the database or a flat file and finding out later it isnt what it should be.


                  CleaKO

                  "I think you'll be okay here, they have a thin candy shell. 'Surprised you didn't know that.'" - Tommy (Tommy Boy)
                  "Fill it up again! Fill it up again! Once it hits your lips, it's so good!" - Frank the Tank (Old School)

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                  • P PIEBALDconsult

                    I'd have to see the code.

                    T Offline
                    T Offline
                    Tristan Rhodes
                    wrote on last edited by
                    #34

                    public class SessionWrapper { private HttpSessionState session; // Constants public SessionWrapper() { session = HttpContext.Current.Session; } public string UserName { get{return (string)session[SE_USER_NAME];} set{session[SE_USER_NAME] = value;} } public int? LastPurchase { get{return (int?)session[SE_LAST_PURCHASE];} set{session[SE_LAST_PURCHASE] = value;} } // Etc } I'm actualy working on a code generator to build stuff like that for me, but at the time it was written manualy. My argument was its a strongly typed wrapper that exposes other developers to exactly what they need, what type it is, and hides the constants. T

                    ------------------------------- Carrier Bags - 21st Century Tumbleweed.

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                    • T Tristan Rhodes

                      public class SessionWrapper { private HttpSessionState session; // Constants public SessionWrapper() { session = HttpContext.Current.Session; } public string UserName { get{return (string)session[SE_USER_NAME];} set{session[SE_USER_NAME] = value;} } public int? LastPurchase { get{return (int?)session[SE_LAST_PURCHASE];} set{session[SE_LAST_PURCHASE] = value;} } // Etc } I'm actualy working on a code generator to build stuff like that for me, but at the time it was written manualy. My argument was its a strongly typed wrapper that exposes other developers to exactly what they need, what type it is, and hides the constants. T

                      ------------------------------- Carrier Bags - 21st Century Tumbleweed.

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                      PIEBALDconsult
                      wrote on last edited by
                      #35

                      Makes sense to me. A similar thing I do is with ExecuteScalar(), which returns object which then (usually) requires a test for null and a cast, and setting a default value if null. I wrote a wrapper like public virtual T ExecuteScalar<T>(T IfNull){...} to handle the cast. Any time I'm writing a scalar query and don't have to test for null and/or do a cast I save time, the code is more readable too. Usually, spending the time to encapsulate such common tasks will pay off. "A stitch in time saves nine."

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                      • P PIEBALDconsult

                        Makes sense to me. A similar thing I do is with ExecuteScalar(), which returns object which then (usually) requires a test for null and a cast, and setting a default value if null. I wrote a wrapper like public virtual T ExecuteScalar<T>(T IfNull){...} to handle the cast. Any time I'm writing a scalar query and don't have to test for null and/or do a cast I save time, the code is more readable too. Usually, spending the time to encapsulate such common tasks will pay off. "A stitch in time saves nine."

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                        Tristan Rhodes
                        wrote on last edited by
                        #36

                        Well i spent a few months crusading for sensible coding practices, and now i've given up. The other day i was told to remove it, re-centralise all the constants and simply use Session[AppConstants.CONST_NAME] to access everything.

                        ------------------------------- Carrier Bags - 21st Century Tumbleweed.

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                        • T Tristan Rhodes

                          Well i spent a few months crusading for sensible coding practices, and now i've given up. The other day i was told to remove it, re-centralise all the constants and simply use Session[AppConstants.CONST_NAME] to access everything.

                          ------------------------------- Carrier Bags - 21st Century Tumbleweed.

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                          PIEBALDconsult
                          wrote on last edited by
                          #37

                          Glad I'm in a small IT department and have free reign on what I write.

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                          • P PIEBALDconsult

                            Glad I'm in a small IT department and have free reign on what I write.

                            T Offline
                            T Offline
                            Tristan Rhodes
                            wrote on last edited by
                            #38

                            I'm in a small IT department too, that was the CTO and Senior Developer pulling rank on my design decision. :S (I'm leaving in a week anyway :D ) T

                            ------------------------------- Carrier Bags - 21st Century Tumbleweed.

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                            • J jhwurmbach

                              Those points that are the hotspots of my current working are CTRL-F2-bookmarked anyway. And if I only want to know the type of a variable, Intellisense would open that little tooltip for me. I all boils down to being simply personal style, I guess.


                              Failure is not an option - it's built right in.

                              L Offline
                              L Offline
                              Lost User
                              wrote on last edited by
                              #39

                              I would agree. I consider it good form to reduce as much as possible the scope of a variable. I do not want the IDE suggesting local variables that should not be used at that point.

                              Paul

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                              • T Tristan Rhodes

                                public class SessionWrapper { private HttpSessionState session; // Constants public SessionWrapper() { session = HttpContext.Current.Session; } public string UserName { get{return (string)session[SE_USER_NAME];} set{session[SE_USER_NAME] = value;} } public int? LastPurchase { get{return (int?)session[SE_LAST_PURCHASE];} set{session[SE_LAST_PURCHASE] = value;} } // Etc } I'm actualy working on a code generator to build stuff like that for me, but at the time it was written manualy. My argument was its a strongly typed wrapper that exposes other developers to exactly what they need, what type it is, and hides the constants. T

                                ------------------------------- Carrier Bags - 21st Century Tumbleweed.

                                P Offline
                                P Offline
                                PIEBALDconsult
                                wrote on last edited by
                                #40

                                I just spent the day (working from home) writing a wrapper for NumericUpDown that is generic and will take any of the built-in numerics, hide the actual decimal, and handle the casting so I don't have to. Ugly as Hillary, but it works.

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                                • C Chris Maunder

                                  ewwww! Declare the variables as close to their first use as possible. I have spoken.

                                  cheers, Chris Maunder

                                  CodeProject.com : C++ MVP

                                  X Offline
                                  X Offline
                                  XTAL256
                                  wrote on last edited by
                                  #41

                                  Well I started programming in Java and we were told to put all our declarations up the top (which i think is the Java coding standard), and i like it this way. Makes all your declarations easy to find. However, sometimes i need a variable at that scope which will only be used further down, so i put it there. It all comes down to the scope of you're variable and where it's used in that scope as to where it should go

                                  Customer in computer shop: "Can you copy the Internet onto this disk for me?"

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                                  • D dighn

                                    But then you have to go back to where you were. Sure you could take note of the position but it would still be annoying.

                                    R Offline
                                    R Offline
                                    Russell Jones
                                    wrote on last edited by
                                    #42

                                    in the old vb6 days ctrl-f2 used to take you to a definition and ctrl-shift-f2 used to take you back to where you were before. I'm sure this must be implemented in .net but i've never found out how to do it. I used to use it all the time. Russ

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