was giving a though on using ajax enabled wcf services as part of architecturegenerally wht im usingis UI-> BL-> data accessis it suggestable to use wcf services layer insteadof BLnd hv UI-> services-> data accessrelated to asp.netwould like to no pro's and con's of doing this thing.
View 2 RepliesI have 2 web services. They are identical in every respect except that one points to a test schema and the other one to production. I'm in the middle of writing the class that will use these web services but I'm not sure how to do what i'm trying to do.What I need is a class that does the work of consuming the web serivce, and I want to pass to it either the test or prod serice and and it be transparent insde of the class.
So..testSerive and prodSerice are idential, how can i have them inherit from something so that i can pass that something to my consumer class?
Suppose we are building a web-based application to retrieve and enter information into a database. The user-interface invokes web services. Which architecture would use for the application.
View 10 Replieshow to implement web services in a 3 tier architecture and also give a brief idea about how to implement coding as soon as possible.
View 1 RepliesCan some one inform me whether I need to replicate the same set of entities in the client which are similar to that of the ones in the server? I have planned to start a proj with service functions as wcf services and in turn they are getting referred in silverlight client application.
Incase if i need to consider casting to or back from the return value lists of service methods in the server, should i be creating entity class in the client application as well? Or is there a work around? Something like exposing the entities from the server just as the services functions?
My requirement is i need to display some quotes from some vendors in my User Interface. Some of the quote details will be fetched from database where as some vendors are giving web services to get the quote results. I need to combine the quotes from database as well as the various web service response and display in the grid.
View 1 Repliesthere's an .aspx page that does absolutely nothing in the codebehind, but contains the markup for the page in the Design View. Then we have an .asmx web service that receives requests with JSON content-type. These are called by the JavaScript in the page. This web service returns .NET objects serialized to JSON in response to these JavaScript Ajax HTTP POSTs. I'd like to switch to MVC but am not sure to how switch this architecture. Basically what we're doing is two things:
1) Replying to GET /MyPage.aspx with HTML markup that represents the page
2) Replying to POST /MyPage.aspx/WebMethodName requests with .NET objects serialized to JSON.
It seems like MVC would be a good way to eliminate the need for a Page object (again, the codebehind isn't used--only the HTML markup in the .aspx file is) and an .asmx web service. No? What do I need to start changing to accomplish this switch? Is it straight-forward? Painful? Someone at work already has an MVC page running in the same directory as my Web Forms .aspx and .asmx web service, but I don't see anything in the directory about Routes, so I'm confused. He's got a Views, ViewModels, and Controllers subdirectories.
I'm planning to make an ASP.NET webserver that provides all kinds of functions, like an API. There will be quite alot functions that can easily be grouped (datasystem, userAccount, fileSystem, and so on). I can make multiple services (asmx files) into a single webserver, and let the clients connect to whatever service(s) they need. However, I'm not sure if it's a wise thing to do... Pack everything into 1 big service(1 asmx file), or split up into many smaller services? How about:
- performance/memory on the server (a client that connets with 1 or 6 services)
- Maximum connections (we will use a Windows XP Server edition computer)
There will be about ~30 computers using it. In a worst case scenario, they each computer could make use of 6 services at the same time, if I decide to split it up. A single client could make use of the fileSystem, account, dataSystem and several other things at the same time.
Actually i dont know whther this is the correct forum or not? but i didnt found any other section to post a question like this.Actually i am in . I need to document the service i developed so when my absence or something the other developer can understand my way and code.The aim is to specify the module descriptions, needs and business logic i used to implement. So the next developer can understandCan anyone tell me the name of this document. Developer Document ? Please tell the correct name of this and any link to download any template to undertand. Please dont take it as simple question
View 2 RepliesI am looking details on the internal working of asp.net architecture. The topics need to include the following:
Asp.Net Thread/Application Pools HttpRuntime HttpApplication - When and how it is set up How HttpContext is set up How objects can passed along the pipeline using HttpContext.Current.Items Why does modification of static variables requires locks in ASP.NET (advanced)IIS 7 Integration Mode
i want to create a centralised business or Service authendication architecture in .net. for example, we have a clients like c1, c2, c3, c4, ... etc. everybody logins seperatly as well as grouply. ie, if client "C1" logins [with login authentication] he can access c2 , c3, c4 also without login authendication. So its like a google. if we enters gmail account, we can access orkut, picasa like that.. i need the cetralised architecture.
And, client "c1" seperately asks seperately how will be the authendication architecture.
so give me the single solution for both these two scenarios. how will be the architecture for these two and how is the Data Base (Login) Structure.
recently i've studied on ADO.NET's Entity Model Framework and say 'wow' as ORM is one of the fevourite pattern i practice..but suddenly i've come to an ambiguous situation when i'm going to start. i usually follow the following 3-tier architecture..
1. UI Layer
2. BLL - business logic layer
3. DAL - Data Access Layer
a. DTO / DAO
b. Gateway (contains the sql query/stored procedure and connection with DB)
now when i'm going to use the Entity Model Design,where the DBML/ .edmx File should be placed? Because many a times i'm using the DBML file as DTO because of the mapped objects.. in the same time, sometimes DBML ( .edmx file in .NET 4.0) contains CRUD methods and stored procedured method as well as methods with different selection operations,- which should be in Gateway. so where the .edmx file should be placed !?!! IN DTO namespace !? or in Gateway namespace!
moreover sometimes there is no need for the BLL which breaks the rules of inter-layer-communication (UI > BLL > DAL.Gateway)! what makes me confuse is, what should be the ideal n-tier architecture when i'll use the ADO.NET Entity Model Design Framework
I am working on 3 tier architecture: UI, BL, DAL. In my UI i have following code for Asynchronous page processing:
[Code]....
But I want a database fetch operation to be performed in this asyncronous method. And due to 3 tier arch. i am unable to do this in UI Layer. Can anyone guide me that how can I implement Asynchronous processing in 3 tier architecture? Note: If you are going to place EndAsyncWork1 in DAL then show that how can I return a value back to UI layer from this function.
[Code]....
I want to know that What are the factors if we use methods on each .cs page for connection and executing query on each aspx code behind page rather then using BAL .
How our application get affected in terms of performance and speed or other way?
when we put our website on server after publish/compile in general approach (using query in C# code behind) rathor than using stored procedures?
then which logic is better and why ?
i am going to develop a web based application with c# but i am very upset that how to design a good pattern how to code to let the program more efficient.
View 3 RepliesI am designing frameWork for an ERP application ijust have some quries regarding it
Some standards have to be set for this project ,need some help for it.
1)folder structure of the project for frame work 4.0
2)Layering should be done like(3 tier,n tier) if i want to Go for more than 3 layers what could be the other layers except BAL,DAL,Presentation.
3)should all the images be called from css,or some images can be called from the page it self.
4)what benchmarks should be set while writing Stored procs,to make uniformity and increase performance.
5)what securtiy messaures should be taken so that application remains free for intruders.
I have implemented the 3-tier architecture project; DAL, BAL, and presentation layer are three layers in it. I am going to implement the following scenario:
Presentation layer calls to a function in the BAL layer which returns 2 string variable, and in turn this function from BAL layer calls to a DAL layer function which also returns 2 string variable. How can I implement the above scenario?
I'm developing a n-tier architecture... I'm confused with handling exception in the layers... Is it a good practise to add a Exception Layer to the architecture.
View 3 RepliesI am a newbie to asp.net and work in a firm where the projects are quite small.
I was told by my manager that in a few weeks or so we would be getting a bigger project and I need to be well versed with Design Patterns and N tier arcihtecture.
I would really appreciate if someone could provide me some links and also drop me a few sentences on how this things are useful?
I am going to create the SAAS (Software as a service) Application. Can you please provide all the attributes that we have to consider in SAAS application (for example usability, pluggable architecture etc .. )
How architecture should be build for this project, provide sample architecture for SAAS application. This architecture should be easy to upload and upgrade or degrade the features. Error handling should be easy.
I am try to create architecture design for WCF service.
We have WCF service that we have to expose to third party so then can request with xml and get back xml response.
The wcf service should do the following:
- Accept the request call with xml
- Check xml against the schema
- Parse the xml
- Authenticate the incoming xml by username and password that will be in xml
- Send back the response
If anybody can let me know what kind of design I can use or is there any pattern available that I can take it and then extend it as per my requirement.
It's Possing to make a web site a web site to be extended using plugins?im planing to make a bugtracker using the webforms in aps.netbut icant find a tutorial about how to make it extendable
View 3 Replies1. Can you explain me what is component based development ? What I am already doing is using layers (user interface, custom types, data access layer and busines logic layer). For example for filling a drop down list with countries what I do is getting data from DAL using custom types in my BLL and BLL return a list of countries to user interface. Now in my opinion it is a plug-able component that I can use anywhere. Should it be called a component ?
2. What is a component a method ? or class or a assambly ?
3. Can components be like that (methods and assemblies) or they are services to embed ?
4. Actually I never have used services, if component can be in both ways (services & classes and assemblies) than what approach is better, should component be made in form of assemblies or services ?
5. Without being so technical any general rules on making re-usable components ?
i just want to make sure that i am folling the correct pattern and following the right practice and i have read the book (Wrox.Professional.Enterprise.dot.NET) and based on that book here is what i come-up with my design.
my solution consists of:
Model,
Repository,
Service,
Test,
UI
[Code]....
I am working on a website where when the user logs in, I select their database based on their username. Currently I have a list of all databases in the web.config and I select the Database ID from the username and then read the database string from web.config. What is the most optimal way to implement this scenario?
currently I:
- store the Database ID in the session object
- the Session object expires after like 5 minutes so i have to read the Database ID from the online database based on the username and regenerate the Session["DatabaseID"] again.
- there are some security issues with the Session ID, so I started clearing the Session in !(Page.IsPostBack) and I generate the Database string again.
Where shall I store the DatabaseID and the database connection string so I can easily reuse it once the user has logged in?