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silly, probably meaninigless questionI've asked this question to some developers that are much more experienced
than I, and gotten different answers --- and I can't find anything about it in the documentation. Dim vs. Private as a variable declaration What is the difference between the two (I strongly suspect there is none) for global variable declarations, to the compiler i dont think theres a
different. when you declare a variable like so Dim int As Integer its automatically set to Private Dim int As Integer when you specify Private, i think it just helps with code readability....for instance i always declare global vatriables Private unless i need them Public, and only use Dim for local variables.... -- -iwdu15 Matt,
It depends on the type of type you are using Dim in. Its also easy enough to test: Consider the following: Friend Class TestClass Dim Variable As String End Class Friend Module TestModule Dim Variable As String End Module Friend Structure TestStructure Dim Variable As String End Structure Variable is private in the TestClass & TestModule, however it is public in the Structure. Rather then relay on what visibility Dim may or may not be. I normally always use Private, Friend, Protected, Protected Friend, or Public when defining fields in my types. -- Show quoteHide quoteHope this helps Jay B. Harlow [MVP - Outlook] ..NET Application Architect, Enthusiast, & Evangelist T.S. Bradley - http://www.tsbradley.net "Matt" <mfielderREMOVECAPS@nospam.nospam> wrote in message news:eAytYxEsGHA.4596@TK2MSFTNGP04.phx.gbl... | I've asked this question to some developers that are much more experienced | than I, and gotten different answers --- and I can't find anything about it | in the documentation. | | Dim vs. Private as a variable declaration | | What is the difference between the two (I strongly suspect there is none) | | Matt,
In my idea is the Dim a complete ancient not needed program word in VBNet. However it has a lot of emmotions by classic VB programmers now using VBNet. Probably from their old discussions about this with old C programmers. If you ask them why to use it, than forever the only real anser they give at the end is, because I find it so nice looking. To prove that "For I as integer" is more than enough to declare the "I" The "as" word does the trick not the dim and very nice and in my opinion much nicer than in C derived languages as C#.. The Dim is nowhere needed in the current syntax from VBNet in my idea. The Private, Public, Friend declaration tells something about the scope (where can I use something) from a variable. Private means only globaly in the current class. Friend means everywhere in the current assembly and Public means everywhere. If Dim is used or not used as in the sample "For I as integer", than it is forever a private to the level where it is declared. (Before you think that, I don't want that Dim is removed from VBNet, however that it is made optional, so that you can decide self to use it or not and stay compatible with older programs). I hope this helps, Cor Show quoteHide quote "Matt" <mfielderREMOVECAPS@nospam.nospam> schreef in bericht news:eAytYxEsGHA.4596@TK2MSFTNGP04.phx.gbl... > I've asked this question to some developers that are much more experienced > than I, and gotten different answers --- and I can't find anything about > it in the documentation. > > Dim vs. Private as a variable declaration > > What is the difference between the two (I strongly suspect there is none) > Hi,
Reading the message from Linda, > If Dim is used or not used as in the sample "For I as integer", than it is See for that the message from Jay, I wrote this to fast.> forever a private to the level where it is declared. Cor Show quoteHide quote > > > > > > "Matt" <mfielderREMOVECAPS@nospam.nospam> schreef in bericht > news:eAytYxEsGHA.4596@TK2MSFTNGP04.phx.gbl... >> I've asked this question to some developers that are much more >> experienced than I, and gotten different answers --- and I can't find >> anything about it in the documentation. >> >> Dim vs. Private as a variable declaration >> >> What is the difference between the two (I strongly suspect there is none) >> > > Hi Matt,
Thank you for posting. I think there're three main differences between Dim and Private. 1. Elements you can declare with Dim are different from those with Private. Dim is only used to declare variables. However, Private can be used for Interface, Class, Structure, Structure members, Procedure, Property, Member variables,Constant, Enumeration, Event, External declaration and Delegate. 2. Declaration context within which you can use Dim and Private are different. Dim can be used in a procedure or function, however Private can't. For example, suppose there's a procedure named MyProcedure. We could use Dim to declare the variable in MyProcedure, but we couldn's use Private to declare it. Sub MyProcedure() Dim localVar As String ' we couldn't use Private to declare a variable in a procedure ' the following code will cause an error Private localVar1 As String End Sub 3. Elements declared with Dim has the default access level. Elements declared with Private are always private. For example, if you use Dim to declare a varible in a Class, the variable is private because in VB.NET the default access level of member variable in class is private. On the contrary, if you use Dim to declare a variable in a Structure, the variable is public because in VB.NET the default access level of member variable in structure is public. Hope this helps. If you have anything unclear, please feel free to let me know. Sincerely, Linda Liu Microsoft Online Community Support ================================================== Get notification to my posts through email? Please refer to http://msdn.microsoft.com/subscriptions/managednewsgroups/default.aspx#notif ications. Note: The MSDN Managed Newsgroup support offering is for non-urgent issues where an initial response from the community or a Microsoft Support Engineer within 1 business day is acceptable. Please note that each follow up response may take approximately 2 business days as the support professional working with you may need further investigation to reach the most efficient resolution. The offering is not appropriate for situations that require urgent, real-time or phone-based interactions or complex project analysis and dump analysis issues. Issues of this nature are best handled working with a dedicated Microsoft Support Engineer by contacting Microsoft Customer Support Services (CSS) at http://msdn.microsoft.com/subscriptions/support/default.aspx. ================================================== This posting is provided "AS IS" with no warranties, and confers no rights. Linda,
In my opinion are you describing the differences between Private and Dim while the question was between Dim and Private. Maybe silly but the same as what is the difference between a duckbill and a mammal or the difference between a mammal and a duckbill. Maybe am I in my Germanic (not German) way of using the English language wrong in this, but in my opinion is there a difference. (English is a member of the Germanic languages) The first answer is in my idea that a duckbill does not have direct living child's but for the rest it is (almost) the same. The second answer is much wider, in the family of mammals are all kind of types. Some mammals eat only meat, some only vegetables, some can fly etc. etc. However even more, the question was: > Dim vs. Private as a variable declaration Just what I was thinking about reading your answer.> > What is the difference between the two (I strongly suspect there is none) > However, I saw that I had made a mistake in my text so thank you for making me attent on that. Cor Show quoteHide quote "Linda Liu [MSFT]" <v-l***@online.microsoft.com> schreef in bericht news:9o%236QPJsGHA.2504@TK2MSFTNGXA01.phx.gbl... > Hi Matt, > > Thank you for posting. > > I think there're three main differences between Dim and Private. > > 1. Elements you can declare with Dim are different from those with > Private. > > Dim is only used to declare variables. However, Private can be used for > Interface, Class, Structure, Structure members, Procedure, Property, > Member > variables,Constant, Enumeration, Event, External declaration and Delegate. > > 2. Declaration context within which you can use Dim and Private are > different. > > Dim can be used in a procedure or function, however Private can't. For > example, suppose there's a procedure named MyProcedure. We could use Dim > to declare the variable in MyProcedure, but we couldn's use Private to > declare it. > > Sub MyProcedure() > Dim localVar As String > > ' we couldn't use Private to declare a variable in a procedure > ' the following code will cause an error > Private localVar1 As String > > End Sub > > 3. Elements declared with Dim has the default access level. Elements > declared with Private are always private. > > For example, if you use Dim to declare a varible in a Class, the variable > is private because in VB.NET the default access level of member variable > in > class is private. > > On the contrary, if you use Dim to declare a variable in a Structure, the > variable is public because in VB.NET the default access level of member > variable in structure is public. > > Hope this helps. > If you have anything unclear, please feel free to let me know. > > > Sincerely, > Linda Liu > Microsoft Online Community Support > > ================================================== > Get notification to my posts through email? Please refer to > http://msdn.microsoft.com/subscriptions/managednewsgroups/default.aspx#notif > ications. > > Note: The MSDN Managed Newsgroup support offering is for non-urgent issues > where an initial response from the community or a Microsoft Support > Engineer within 1 business day is acceptable. Please note that each follow > up response may take approximately 2 business days as the support > professional working with you may need further investigation to reach the > most efficient resolution. The offering is not appropriate for situations > that require urgent, real-time or phone-based interactions or complex > project analysis and dump analysis issues. Issues of this nature are best > handled working with a dedicated Microsoft Support Engineer by contacting > Microsoft Customer Support Services (CSS) at > http://msdn.microsoft.com/subscriptions/support/default.aspx. > ================================================== > > This posting is provided "AS IS" with no warranties, and confers no > rights. > Hi Matt,
I am closely monitoring the newsgroup and I am contacting you to check the issue status. If you have anything unclear, please feel free to post in the newsgroup and we will follow up. Thank you for using our MSDN Managed Newsgroup Support Service! Sincerely, Linda Liu Microsoft Online Community Support 
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