 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
.NET Forum / .NET Framework / New Users / August 2005Client-Server & Standalone Using Same Code Base
I have to write an app that can be offered as both a client-server solution as well as a standard solution. For the server-client solution here are multiple users all of them working with the same data. The solution might be deployed on an intranet or internet. The client has some complex functions so I need a "rich" client. For the standalone version the user want his personal data on his computer. He is the only one using the program and he is using it only from one computer. The user might connect to the server for a data feed, though. In both scenarios the users should be able to do some (limited) work even when they are not connected to the server. I do not want to write a seperate application for both scenarios. So I was thinking of simply putting the client and server on the same user machine. There are a few problems with that, though. 1) The user does not have MSSQL. I might just use MSDE for the standalone version. 2) The user does not have IIS. This is a problem because I wanted to use web services on the server to supply the client with data. 3) There might be some problems with authentification, authorization, etc. Any inputs on this is highly appreciated. Regards, Rob check for "smart clients" (connected and disconnected) and "multi tier" on msdn - this should help you! regards >I have to write an app that can be offered as both a client-server > solution as well as a standard solution. [quoted text clipped - 29 lines] > Regards, > Rob I am familiar with what smart clients are and what multi tier is. I will create a smart client using a multi tier. A smart client, as the word implies, is for a client-server scenario. My question is regarding the standalone version where I simply would like to put the client and server onto the same system. As mentioned there are some problems as the user might not have MSSql, IIS, etc. So how could I go after creating both a server-client and a standalone program and use the same code base for both. Regards, Rob Hi rob, sorry - but I don`t know your scenario! Is it, that your clients might be connected to a server sometimes and sometimes they are not? if so, check offline functionalities of smart clients (there are msdn articles about this issue!)! If it is the way that you want to create TWO applications - one client/server, one fat client (no connection available) - it is more difficult indeed! In the case you need a fat client without network connection (is it that way? really?) I`d recommend to write your BusinessLayer capable of different data sources - in your client case (where you can`t expect MSSQL, nor IIS) maybe XML or Access... So you might be able to use your BusinessLogic in both scenarios at least! >I am familiar with what smart clients are and what multi tier is. I > will create a smart client using a multi tier. A smart client, as the [quoted text clipped - 7 lines] > Regards, > Rob Yes, basically I will have two applications. The first one is a server-client app. The second one is a standalone version, i.e. does not need a server. Since both offer the same functionality I want to re-use as much code as possible. For the db I will use MSSQL for the server-client app and most likely MSDE for the standalone as they are quite similar. As mentioned for the server-client I was considering using web services. But since the user's computer might not have IIS (Win XP Home) I can't just re-use the code. What's the best way to handle this? Maybe using something else then web services? What other problem areas do I have to consider for instance regarding authentification, autherization, security, etc? Regards, rob .NET Remoting will be an alternative to WebServices, it's even considered a preferred choice for intranet applications over webservices, and the best part is that it can be hosted outside of IIS which apart from the current scenario that you have, is much more robust, stable and fast. Please look up the documentation on this subject for more information about security and things. HTH, Metallikanz! > Yes, basically I will have two applications. The first one is a > server-client app. The second one is a standalone version, i.e. does [quoted text clipped - 13 lines] > Regards, > rob Hi rob - in my opinion your solution could look like this: DAL - data access to either SQL-Server (C/S Solution) or whatever (Client-Only Solution) Business Logic - implemented abstract - doing what it has to do... WebService - "wrapper" for c/s solution - providing the functionaltites your Business Logic offers. (maybe you dont need this layer in your scenario at all-think about it!) SmartClient - WebService consumer - your App in a C/S scenario FatClient - no network connection - so just beeing able of using your BuisnessLogic / DAL directly! > Yes, basically I will have two applications. The first one is a > server-client app. The second one is a standalone version, i.e. does [quoted text clipped - 13 lines] > Regards, > rob DAL - able to switch DB. (MS Data Access App Block) Business Logic - implemented abstract - doing what it has to do... WebService - Calls BL (hosted on IIS) Smart Client always: Winform is your client always (perhaps) or a Browser. In case of no Server to host your webservices, you host your web-svc with in your dotnet app, if winform same exe, else if browser is your client then perhaps another simple dotnet exe (any kind) hosting asmx-web services. Do: [http://spaces.msn.com/members/habibcs/PersonalSpace.aspx?_c01_blogpart=blogmgmt& _c=blogpart] Executing ASPX / ASMX pages without a web server http://radio.weblogs.com/0105476/stories/2002/07/12/executingAspxPagesWithoutAWe bServer.html http://msdn.microsoft.com/msdnmag/issues/04/12/ServiceStation/default.aspx http://msdn.microsoft.com/msdnmag/issues/03/01/CuttingEdge/ http://www.west-wind.com/presentations/aspnetruntime/aspnetruntime.asp This is very useful and easily do-able in dotnet 1.1 and 2. Same Web SvC and stuff behind will work exactly in both IIS and your custom ASP.Net host app. --- hB 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 ...
|
Reply to this Message
|
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.