how to create class instance?

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  • André
    #1

    how to create class instance?

    Hi,

    i defined a class "myclass" in the App_Code directory of my asp.net
    application.

    i tried both syntaxes and both work.
    My question is: is there a difference between both lines and what's the
    best?

    dim x as new myclass
    dim x as new myclass()

    Thanks
    André


    Tags: None
    • Noodle
      #2
      Re: how to create class instance?

      On 15 Mar, 09:21, "André" <a...@dre.tywro te:
      Hi,
      >
      i defined a class "myclass" in the App_Code directory of my asp.net
      application.
      >
      i tried both syntaxes and both work.
      My question is: is there a difference between both lines and what's the
      best?
      >
      dim x as new myclass
      dim x as new myclass()
      >
      Thanks
      André
      I would say without the brackets unless you have arguments that need
      to be entered in the constructor then you need the brackets.

      But at the end of the day its just personal preference.

        Comment

        • Herfried K. Wagner [MVP]
          #3
          Re: how to create class instance?

          "André" <an@dre.tyschri eb:
          i defined a class "myclass" in the App_Code directory of my asp.net
          application.
          >
          i tried both syntaxes and both work.
          My question is: is there a difference between both lines and what's the
          best?
          >
          dim x as new myclass
          dim x as new myclass()

          Both lines are semantically identical. Personally I prefer the second one
          for consistency. VB does not enforce empty parentheses on method
          (constructor) calls.

          --
          M S Herfried K. Wagner
          M V P <URL:http://dotnet.mvps.org/>
          V B <URL:http://dotnet.mvps.org/dotnet/faqs/>

            Comment

            • Mike Hofer
              #4
              Re: how to create class instance?

              On Mar 15, 10:00 am, "Herfried K. Wagner [MVP]" <hirf-spam-me-
              h...@gmx.atwrot e:
              "André" <a...@dre.tysch rieb:
              >
              i defined a class "myclass" in the App_Code directory of my asp.net
              application.
              >
              i tried both syntaxes and both work.
              My question is: is there a difference between both lines and what's the
              best?
              >
              dim x as new myclass
              dim x as new myclass()
              >
              Both lines are semantically identical. Personally I prefer the second one
              for consistency. VB does not enforce empty parentheses on method
              (constructor) calls.
              >
              --
              M S Herfried K. Wagner
              M V P <URL:http://dotnet.mvps.org/>
              V B <URL:http://dotnet.mvps.org/dotnet/faqs/>
              Agreed.

              However, it's worth noting that if your class only provides a default
              (parameterless) constructor, and you're using Visual Studio .NET
              2002/2003, the IDE will remove the empty parentheses automatically.
              It's annoying. I prefer to put them in there. (A call to the default
              constructor is still, technically, a method call.)


                Comment

                • André
                  #5
                  Re: how to create class instance?

                  Thanks

                  "Mike Hofer" <kchighland@gma il.comschreef in bericht
                  news:1173972170 .148651.172520@ n76g2000hsh.goo glegroups.com.. .
                  On Mar 15, 10:00 am, "Herfried K. Wagner [MVP]" <hirf-spam-me-
                  h...@gmx.atwrot e:
                  "André" <a...@dre.tysch rieb:
                  >
                  i defined a class "myclass" in the App_Code directory of my asp.net
                  application.
                  >
                  i tried both syntaxes and both work.
                  My question is: is there a difference between both lines and what's the
                  best?
                  >
                  dim x as new myclass
                  dim x as new myclass()
                  >
                  Both lines are semantically identical. Personally I prefer the second one
                  for consistency. VB does not enforce empty parentheses on method
                  (constructor) calls.
                  >
                  --
                  M S Herfried K. Wagner
                  M V P <URL:http://dotnet.mvps.org/>
                  V B <URL:http://dotnet.mvps.org/dotnet/faqs/>
                  Agreed.

                  However, it's worth noting that if your class only provides a default
                  (parameterless) constructor, and you're using Visual Studio .NET
                  2002/2003, the IDE will remove the empty parentheses automatically.
                  It's annoying. I prefer to put them in there. (A call to the default
                  constructor is still, technically, a method call.)



                    Comment

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