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vb.net upgrade
group:Replacement for Err.Raise(0)
vb.net upgrade:
Throw an exception. Throw new Exception("I have an error") http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vblr7/html/vastmThrow.asp Ken ------------------------------------ [quoted text, click to view] "Robert" <no@spam.com> wrote in message I need to remove the import of Microsoft.Visualbasic.news:eEZ$1rU9EHA.2788@TK2MSFTNGP15.phx.gbl... Some older .Net code is littered with these. What is the best practice in this case? Thanks in advance.
"Robert" <no@spam.com> schrieb:
[quoted text, click to view] >I am familiar with exceptions, however throwing an error of 0 is basically >saying there is no error. > > In the code it appears it is being used to do a far return to the routine > closest on the call stack, with an error handler. Exceptions should not be used to control program flow. [quoted text, click to view] > Also, is there a FAQ on how to work around all the functions in > Microsoft.VisualBasic? There is no need to work around the functions included in "Microsoft.VisualBasic.dll" because they are part of VB. VB.NET for VB Veterans <URL:http://msdn.microsoft.com/library/en-us/vbcon/html/vboriintroductiontovisualbasic70forvisualbasicveterans.asp> -- M S Herfried K. Wagner M V P <URL:http://dotnet.mvps.org/> V B <URL:http://dotnet.mvps.org/dotnet/faqs/>
I need to remove the import of Microsoft.Visualbasic.
Some older .Net code is littered with these. What is the best practice in this case? Thanks in advance.
Robert,
"Robert" <no@spam.com> schrieb: [quoted text, click to view] >>> Also, is there a FAQ on how to work around all the functions in >>> Microsoft.VisualBasic? >> >> There is no need to work around the functions included in >> "Microsoft.VisualBasic.dll" because they are part of VB. > > If it is part of VB, why must one Import the namespace (either in each of > your code files) or at the project properties/imports level? This gives you more control over imports. [quoted text, click to view] > Seems to be an add-on library, and not part of the the VB to IL compiler > process.. In VS.NET, the reference to "Microsoft.VisualBasic.dll" cannot be removed at all. This is not the case for the command-line complier ("vbc.exe"). [quoted text, click to view] > Since I can NOT use these functions for a PocketPC port I would love to > find a resource with the common work arounds. I remember that some of the functions of 'Microsoft.VisualBasic' are available for the .NET Compact Framework too and thus can be used in Compact Framework applications. [quoted text, click to view] > Do you advocate using ANY of the functionality in the > Microsoft.VisualBasic namespace?!? Ever? I would not say that I advocate them, but I see them as part of Visual Basic that can/should be used whenever it makes sense to use it. [quoted text, click to view] > I do not use this namespace. I have read numerous articles about the > performance hits, and after all it is just a wrapper around the System > namespaces. Well, it's up to personal preference whether to use the functions or not. I have chosen to use them in some situations. [quoted text, click to view] > Hope I do not come across as an ass, but it seems you completely missed my > points. I think I understand the points you made, but I feel sorry, I am not aware of a comparison or mapping table between VB's functions and pendants in the ..NET Framework, because IMHO Microsoft doesn't consider using the VB functions "bad practice". -- M S Herfried K. Wagner M V P <URL:http://dotnet.mvps.org/> V B <URL:http://dotnet.mvps.org/dotnet/faqs/>
I am familiar with exceptions, however throwing an error of 0 is basically
saying there is no error. In the code it appears it is being used to do a far return to the routine closest on the call stack, with an error handler. Perhaps a custom internal exception, that is trapped up the call stack, and then not re-thrown. Anyway, I have never used this idiom, and thought this would bean easy one for this group.. Also, is there a FAQ on how to work around all the functions in Microsoft.VisualBasic? I am porting an app to PocketPC, and this library is not supported on that platform.. Thanks in advance, again. ps. It is a shame there is not much history in this group.. I think if I could read messages from 3-4 years ago, all my questions would be answered. My first visit today, and I saw only 117 messages. And I am in China at the moment, so Google groups is blocked. Sigh. [quoted text, click to view] "Ken Tucker [MVP]" <vb2ae@bellsouth.net> wrote in message news:uJhRc7V9EHA.3236@TK2MSFTNGP15.phx.gbl... > Hi, > > Throw an exception. > > Throw new Exception("I have an error") > > http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vblr7/html/vastmThrow.asp > > Ken > ------------------------------------ > "Robert" <no@spam.com> wrote in message > news:eEZ$1rU9EHA.2788@TK2MSFTNGP15.phx.gbl... > I need to remove the import of Microsoft.Visualbasic. > > Some older .Net code is littered with these. > > What is the best practice in this case? > > Thanks in advance. > > >
inline..
[quoted text, click to view] "Herfried K. Wagner [MVP]" <hirf-spam-me-here@gmx.at> wrote in message news:OknwmbX9EHA.2192@TK2MSFTNGP14.phx.gbl... > "Robert" <no@spam.com> schrieb: >>I am familiar with exceptions, however throwing an error of 0 is basically >>saying there is no error. >> >> In the code it appears it is being used to do a far return to the routine >> closest on the call stack, with an error handler. > > Exceptions should not be used to control program flow. Agreed. Not my code.. Did not want to break interfaces. [quoted text, click to view] >> Also, is there a FAQ on how to work around all the functions in >> Microsoft.VisualBasic? > > There is no need to work around the functions included in > "Microsoft.VisualBasic.dll" because they are part of VB. If it is part of VB, why must one Import the namespace (either in each of your code files) or at the project properties/imports level? Seems to be an add-on library, and not part of the the VB to IL compiler process.. Since I can NOT use these functions for a PocketPC port I would love to find a resource with the common work arounds. Do you advocate using ANY of the functionality in the Microsoft.VisualBasic namespace?!? Ever? I do not use this namespace. I have read numerous articles about the performance hits, and after all it is just a wrapper around the System namespaces. Hope I do not come across as an ass, but it seems you completely missed my points. Anyway, if you know of a FAQ the touches on removing this depencency, please post it. It would prevent me from reinventing the wheel. Thanks again.
Robert,
[quoted text, click to view] > Do you advocate using ANY of the functionality in the I totally advocate using the functions in the Microsoft.VisualBasic > Microsoft.VisualBasic namespace?!? Ever? namespace, especially when using them would "prevent me from reinventing the wheel". This does not mean that I use Microsoft.VisualBasic over the other Framework classes. I use which ever class/method makes the most sense for what I need done! For example the Microsoft.VisualBasic.Strings.Split function allows one to split a string based on words, instead of a single chars that String.Split does or a pattern that RegEx.Split does. However if I was splitting a string based on a Char I would use String.Split, likewise if I was splitting a string based on a Pattern I would use RegEx.Split. 3 functions servicing 3 specific needs. Same with Microsoft.VisualBasic.Strings.Replace. It has options that String.Replace, StringBuilder.Replace, and RegEx.Replace do not have. Remember that a number of the functions in the Microsoft.VisualBasic namespace are easily used in other languages, such as C#. So if I needed to split a String based on a word in C#, I would use Microsoft.VisualBasic.Strings.Split! Err.Raise(0) sounds like a clever "hack", If there was not a cleaner way to transfer control I have used custom Exceptions to "get out" of a deeply nested routine, especially when using functions with a status makes the code harder to follow rather then easier to follow, and the Exception out is not the normal flow of control for the routine... However as Herfried suggests using an Exception to jump out of nested routines, should only be used exceptional cases... Hope this helps Jay [quoted text, click to view] "Robert" <no@spam.com> wrote in message news:OuaPShY9EHA.2032@tk2msftngp13.phx.gbl... > inline.. > > "Herfried K. Wagner [MVP]" <hirf-spam-me-here@gmx.at> wrote in message > news:OknwmbX9EHA.2192@TK2MSFTNGP14.phx.gbl... >> "Robert" <no@spam.com> schrieb: >>>I am familiar with exceptions, however throwing an error of 0 is >>>basically saying there is no error. >>> >>> In the code it appears it is being used to do a far return to the >>> routine closest on the call stack, with an error handler. >> >> Exceptions should not be used to control program flow. > > > Agreed. Not my code.. Did not want to break interfaces. > > >>> Also, is there a FAQ on how to work around all the functions in >>> Microsoft.VisualBasic? >> >> There is no need to work around the functions included in >> "Microsoft.VisualBasic.dll" because they are part of VB. > > If it is part of VB, why must one Import the namespace (either in each of > your code files) or at the project properties/imports level? > Seems to be an add-on library, and not part of the the VB to IL compiler > process.. > Since I can NOT use these functions for a PocketPC port I would love to > find a resource with the common work arounds. > > Do you advocate using ANY of the functionality in the > Microsoft.VisualBasic namespace?!? Ever? > I do not use this namespace. I have read numerous articles about the > performance hits, and after all it is just a wrapper around the System > namespaces. > > Hope I do not come across as an ass, but it seems you completely missed my > points. > > Anyway, if you know of a FAQ the touches on removing this depencency, > please post it. It would prevent me from reinventing the wheel. > > > Thanks again. >
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