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.NET Forum / ASP.NET / General / June 2007VB Class v WebService
When I create a object I use a .net class unless I need to access it from another web site, I just assumed that a class was a little more efficient than a web service. But is this true? What are the trade offs for using each?  SignatureDim Alan as ThatsIT.net.au.Staffmember Alan = New ThatsIT.net.au.Staffmember Alan.signature = "Thank You" Response.Write Alan.signature.toString() __________________________________________ for the web service you need a connection to your IIS all the time. For a class just reference the class then call the methods in that. You can still share a class across web apps, create a class library and have your data, business, etc classes in that then just reference the dll from your web app or winForms apps. The difference I've noticed in using a web service is performance due to you have to access the web service via the intranet or internet and that can cause some issues, such as security, performance, etc. personally I don't see a use for a web service for an internal application unless your tranfsering data back and forth with an outside source. > When I create a object I use a .net class unless I need to access it from > another web site, I just assumed that a class was a little more efficient > than a web service. But is this true? > > What are the trade offs for using each? Actually web services do not necessarily need to go through IIS and HTTP. They can be configured to use local resources in a more direct manner. Still, there is a tiny amount of overhead so your primary point is still valid even though it has been significantly diminished. Some people might consider this tiny amount of overhead to be worth it in order to have a more reusable service-oriented architecture. But that mostly comes down to opinion and how you envision your object model potentially evolving over the long term. SignatureI hope this helps, Steve C. Orr, MCSD, MVP, CSM, ASPInsider http://SteveOrr.net > for the web service you need a connection to your IIS all the time. For a > class just reference the class then call the methods in that. You can [quoted text clipped - 13 lines] >> >> What are the trade offs for using each? Actually web services do not necessarily need to go through IIS and HTTP. interesting. How would that work? Everything I've seen, read, and even taught in class stated a web service has run via a web server. How can you use or access a web service any other way? > Actually web services do not necessarily need to go through IIS and HTTP. > They can be configured to use local resources in a more direct manner. [quoted text clipped - 23 lines] >>> >>> What are the trade offs for using each? > Actually web services do not necessarily need to go through IIS and HTTP. > interesting. How would that work? Everything I've seen, read, and even > taught in class stated a web service has run via a web server. How can > you use or access a web service any other way? I have read that they can be passed though many protocols but have never done so. I use web services because I always think that I may need to reuse them but often don't and then think a class may of been the better choice. I can consume web services in WSH excel asp pages and HTA's can I do that with classes? If so how do I reference them? I also remember trying to use optional parameters in a WS and they are not allowed. I also assume that you can not have abstract WS's >> Actually web services do not necessarily need to go through IIS and HTTP. >> They can be configured to use local resources in a more direct manner. [quoted text clipped - 23 lines] >>>> >>>> What are the trade offs for using each? Here's the information you requested that details how you can use protocols other than HTTP with web services: http://www.code-magazine.com/Article.aspx?quickid=0611051 SignatureI hope this helps, Steve C. Orr, MCSD, MVP, CSM, ASPInsider http://SteveOrr.net > Actually web services do not necessarily need to go through IIS and HTTP. > interesting. How would that work? Everything I've seen, read, and even [quoted text clipped - 28 lines] >>>> >>>> What are the trade offs for using each? Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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