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  4. how can we write large source code in 2 or more seperate units?

how can we write large source code in 2 or more seperate units?

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  • F Fred 34

    when a program becomes very big in source code, its better to write it within 2 or more seperate source code and then compile them together. question is this thah how can we do it in C#? and how tow to combine it to other routines. in delphi we do it by units, but I am novice in c#. please tell me step by step and explicit. tnx

    realJSOPR Offline
    realJSOPR Offline
    realJSOP
    wrote on last edited by
    #7

    they're called "assemblies" in .Net. Just create a class library project in your solution, and start adding classes to it. To use the classes in that library, you have to include htis line at the top of your file:

    using MyLibraryNameSpace;

    ".45 ACP - because shooting twice is just silly" - JSOP, 2010
    -----
    You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
    -----
    "Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass." - Dale Earnhardt, 1997

    P 1 Reply Last reply
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    • realJSOPR realJSOP

      they're called "assemblies" in .Net. Just create a class library project in your solution, and start adding classes to it. To use the classes in that library, you have to include htis line at the top of your file:

      using MyLibraryNameSpace;

      ".45 ACP - because shooting twice is just silly" - JSOP, 2010
      -----
      You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
      -----
      "Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass." - Dale Earnhardt, 1997

      P Offline
      P Offline
      PIEBALDconsult
      wrote on last edited by
      #8

      John Simmons / outlaw programmer wrote:

      you have to include htis line

      No you don't, but he will need a reference.

      L 1 Reply Last reply
      0
      • P PIEBALDconsult

        John Simmons / outlaw programmer wrote:

        you have to include htis line

        No you don't, but he will need a reference.

        L Offline
        L Offline
        Lost User
        wrote on last edited by
        #9

        PIEBALDconsult wrote:

        No you don't, but he will need a reference.

        Actually, both a reference to the asembly and the using statment.

        P 1 Reply Last reply
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        • L Lost User

          PIEBALDconsult wrote:

          No you don't, but he will need a reference.

          Actually, both a reference to the asembly and the using statment.

          P Offline
          P Offline
          PIEBALDconsult
          wrote on last edited by
          #10

          Shameel wrote:

          the using statment

          Is not required and only weak developers use them.

          L J 2 Replies Last reply
          0
          • P PIEBALDconsult

            Shameel wrote:

            the using statment

            Is not required and only weak developers use them.

            L Offline
            L Offline
            Lost User
            wrote on last edited by
            #11

            PIEBALDconsult wrote:

            not required

            Technically, yes. But this code

            using Com.Company.Suite.Product.Version.Module;

            MyClass c1 = new MyClass();

            is more readable by an order of magnitude than this code

            Com.Company.Suite.Product.Version.Module.MyClass c1 = new Com.Company.Suite.Product.Version.Module.MyClass();

            P 1 Reply Last reply
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            • F Fred 34

              when a program becomes very big in source code, its better to write it within 2 or more seperate source code and then compile them together. question is this thah how can we do it in C#? and how tow to combine it to other routines. in delphi we do it by units, but I am novice in c#. please tell me step by step and explicit. tnx

              B Offline
              B Offline
              BillWoodruff
              wrote on last edited by
              #12

              I think another way to "frame" this question ... if my intuition is on-line here ... is to ask: how can I design, or re-design, my getting-very-big project into functional units, or: how can I determine a set of "organic criteria" which to use as an "organizing principle" to divide my project into logical "chunks" which, in the long run, contribute to program extension, maintenance, and de-bugging (and lend themselves to unit-testing in "isolation" ?). All the "tools" mentioned here, including "Partial Classes," "Class Libraries," etc. are valuable. ... edit in appreciative response to feedback from PiebaldConsult ... Please note: in Visual Studio the option to create a "Class Library" is one that appears when you create a new Solution, and also appears as an option when you choose to add a "New Project" to an existing "Solution." The question of whether a "Solution," which "begins life" as "only" a "Class Library," is, semantically, a "Solution," or a "Project" ... we'll we won't touch that one ... :) ... end edit ... You create it, compile it, and, then, to use it "externally," you must reference it, by adding a Reference to the compiled .dll via the Solution Explorer/ References / Add Reference facility. The location of that compiled .dll can be anywhere: and the Add Reference dialog will let you browse to find it. Once the Reference is added: you do not need to have a 'using' statement for it to be accessed. The one "tool," not mentioned here, that may also be useful in "encapsulating functional units," is using NameSpaces: within one solution you can add Classes, etc., and encapsulate them in the scope of a different NameSpace. In that case, to access the "whatever inside" that NameSpace, you will need to have a "using" statement in your Form or whatever it is that requires access. Or, you can avoid having a "using," statement kby using a "fully qualified" reference: Example:

              using SpecialNameSpace;

              // now you can reference a class in SpecialNameSpace directly:

              SpecialClass theSpecialClass = new SpecialClass();

              // or ... without the "using" statement:

              SpecialNameSpace.SpecialClass theSpecialClass = new SpecialNameSpace.SpecialClass();

              However, when your solution, with multiple NameSpaces, is compiled, the resulting .exe incorporates everything: no separate files are created just by using different NameSpaces. I have never experimented with trying to import a compiled class library dll into another class library, but,

              P 1 Reply Last reply
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              • L Lost User

                PIEBALDconsult wrote:

                not required

                Technically, yes. But this code

                using Com.Company.Suite.Product.Version.Module;

                MyClass c1 = new MyClass();

                is more readable by an order of magnitude than this code

                Com.Company.Suite.Product.Version.Module.MyClass c1 = new Com.Company.Suite.Product.Version.Module.MyClass();

                P Offline
                P Offline
                PIEBALDconsult
                wrote on last edited by
                #13

                Shameel wrote:

                is more readable

                I disagree, especially when code snippets are published here.

                realJSOPR L 2 Replies Last reply
                0
                • B BillWoodruff

                  I think another way to "frame" this question ... if my intuition is on-line here ... is to ask: how can I design, or re-design, my getting-very-big project into functional units, or: how can I determine a set of "organic criteria" which to use as an "organizing principle" to divide my project into logical "chunks" which, in the long run, contribute to program extension, maintenance, and de-bugging (and lend themselves to unit-testing in "isolation" ?). All the "tools" mentioned here, including "Partial Classes," "Class Libraries," etc. are valuable. ... edit in appreciative response to feedback from PiebaldConsult ... Please note: in Visual Studio the option to create a "Class Library" is one that appears when you create a new Solution, and also appears as an option when you choose to add a "New Project" to an existing "Solution." The question of whether a "Solution," which "begins life" as "only" a "Class Library," is, semantically, a "Solution," or a "Project" ... we'll we won't touch that one ... :) ... end edit ... You create it, compile it, and, then, to use it "externally," you must reference it, by adding a Reference to the compiled .dll via the Solution Explorer/ References / Add Reference facility. The location of that compiled .dll can be anywhere: and the Add Reference dialog will let you browse to find it. Once the Reference is added: you do not need to have a 'using' statement for it to be accessed. The one "tool," not mentioned here, that may also be useful in "encapsulating functional units," is using NameSpaces: within one solution you can add Classes, etc., and encapsulate them in the scope of a different NameSpace. In that case, to access the "whatever inside" that NameSpace, you will need to have a "using" statement in your Form or whatever it is that requires access. Or, you can avoid having a "using," statement kby using a "fully qualified" reference: Example:

                  using SpecialNameSpace;

                  // now you can reference a class in SpecialNameSpace directly:

                  SpecialClass theSpecialClass = new SpecialClass();

                  // or ... without the "using" statement:

                  SpecialNameSpace.SpecialClass theSpecialClass = new SpecialNameSpace.SpecialClass();

                  However, when your solution, with multiple NameSpaces, is compiled, the resulting .exe incorporates everything: no separate files are created just by using different NameSpaces. I have never experimented with trying to import a compiled class library dll into another class library, but,

                  P Offline
                  P Offline
                  PIEBALDconsult
                  wrote on last edited by
                  #14

                  BillWoodruff wrote:

                  it is a type of Solution

                  It is a type of project. A solution may contain many projects of various types. And you can add a project of class library type to an existing solution.

                  B 1 Reply Last reply
                  0
                  • P PIEBALDconsult

                    BillWoodruff wrote:

                    it is a type of Solution

                    It is a type of project. A solution may contain many projects of various types. And you can add a project of class library type to an existing solution.

                    B Offline
                    B Offline
                    BillWoodruff
                    wrote on last edited by
                    #15

                    +5 Absolutely correct: interestingly, I've never created a Class Library that way. I have edited my response to incorporate your feedback, thanks. best, Bill

                    "It is the mark of an educated mind to be able to entertain a thought without accepting it." Aristotle

                    realJSOPR 1 Reply Last reply
                    0
                    • P PIEBALDconsult

                      Shameel wrote:

                      is more readable

                      I disagree, especially when code snippets are published here.

                      realJSOPR Offline
                      realJSOPR Offline
                      realJSOP
                      wrote on last edited by
                      #16

                      Code snippets with references to 3rd-party/programmer-created namespaces is kinda pointless anyway. And who are you calling weak? :)

                      ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                      -----
                      You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                      -----
                      "Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass." - Dale Earnhardt, 1997

                      1 Reply Last reply
                      0
                      • B BillWoodruff

                        +5 Absolutely correct: interestingly, I've never created a Class Library that way. I have edited my response to incorporate your feedback, thanks. best, Bill

                        "It is the mark of an educated mind to be able to entertain a thought without accepting it." Aristotle

                        realJSOPR Offline
                        realJSOPR Offline
                        realJSOP
                        wrote on last edited by
                        #17

                        YOU'RE WEAK! :)

                        ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                        -----
                        You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                        -----
                        "Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass." - Dale Earnhardt, 1997

                        B 1 Reply Last reply
                        0
                        • P PIEBALDconsult

                          Shameel wrote:

                          is more readable

                          I disagree, especially when code snippets are published here.

                          L Offline
                          L Offline
                          Lost User
                          wrote on last edited by
                          #18

                          PIEBALDconsult wrote:

                          I disagree, especially when code snippets are published here.

                          Well, the vast majority of code that we write goes into some commercial project rather than CP posts. Repeating the fully qualified type name of class everywhere it is used makes no sense especially when VS (and SD for that matter) tell you the fully qualified type name just by hovering the mouse over it.

                          P 1 Reply Last reply
                          0
                          • L Lost User

                            PIEBALDconsult wrote:

                            I disagree, especially when code snippets are published here.

                            Well, the vast majority of code that we write goes into some commercial project rather than CP posts. Repeating the fully qualified type name of class everywhere it is used makes no sense especially when VS (and SD for that matter) tell you the fully qualified type name just by hovering the mouse over it.

                            P Offline
                            P Offline
                            PIEBALDconsult
                            wrote on last edited by
                            #19

                            Shameel wrote:

                            the vast majority of code that we write goes into some commercial project rather than CP posts

                            Yet the vast majority of code I see that I didn't write is in CP posts.

                            Shameel wrote:

                            VS (and SD

                            Which I don't use if I can avoid it. I also prefer to print out code so I can review it away from the computer.

                            1 Reply Last reply
                            0
                            • realJSOPR realJSOP

                              YOU'RE WEAK! :)

                              ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                              -----
                              You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                              -----
                              "Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass." - Dale Earnhardt, 1997

                              B Offline
                              B Offline
                              BillWoodruff
                              wrote on last edited by
                              #20

                              “Keep me away from the wisdom which does not cry, the philosophy which does not laugh and the greatness which does not bow before children.” Kahlil Gibran Happy Holidays, John ! :) best, Bill

                              "It is the mark of an educated mind to be able to entertain a thought without accepting it." Aristotle

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                              • P PIEBALDconsult

                                Shameel wrote:

                                the using statment

                                Is not required and only weak developers use them.

                                J Offline
                                J Offline
                                Jan Steyn
                                wrote on last edited by
                                #21

                                Agree 100%. Always use the full name.

                                1 Reply Last reply
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