i create 3folder in solution explorar,model view ,conroller in view i inclde .aspx formsin model class related to data base and in controller properties .so am i follwing mvc architacture .so what is diffrence b/w mvc architacture and mvc framework
View 1 RepliesI 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 ?
Difference between .net framework 2.0 and .net framework 2.0 with service pack 2
View 4 Repliesrecently 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
As per my understanding regarding N-Tier and SOA architecture.
N-Tier
N-Tier means dividing application into layers, Example I am developing application in asp.net and I pushed total DB Layer to WCF then it is called N-tier.[Tightly coupled]
SOA[Loosely coupled]
As per my understanding regarding SOA its very generic term and how well we going to loosely couple our architecture then its called SOA. Best example for SOA services - Stock feeds/ weather feeds.
My conclusion:
Even though if we develop application using WCF it does not mean its SOA if it is tightly couple with single client/ or .net applications only can understand about services.
Can you help me in understanding of SOA VS N-Tier.
i have an app runs on framework 1.1 but now i have to move to framework 2.0 ... because i need to update dropdownlist with autocompleate mode but ajax control toolkit just work with .net 2.0 ... the problem is they ask me that i have to be done asap i have problem to convert my app to .net 2.0 and if i have lot of problem how can i handle the dropdownlist wiht autocomplete mode without ajax control tool kit
View 2 Replieswhats is the difference three tier and three layer architecture. I need three tier architecture which is fulfill the object oriented requirement. and database change flexibility.
View 4 Replieswhat is diffrence between Entity Framework and LINQ to SQL i cant yet find a good blog on this i have read that in LINQ to SQL only one to one mapping is possible but Entity Framework allowes many , is it right? if so i dont understand this
View 3 RepliesI am trying to compute the sum of the difference of two columns:
var result = model.TableExample
.Where(condition here)
.Select(s => s.Column1 - s.Column2)
.Sum();
but it is rising an exception:
Index and length must refer to a location within the string
I can't understand this. There is no string anywhere, columns are integer in model and database. Is there something wrong?
I am using MySql provider.
I have almost 100 website that will update in a condition, I have a winzip archive that contains the files that replaces those websites. I want to know that
I can extract that files in a folder and then copy them to all 100 websites folders
I can extract the archive directly to 100 websites folders
which one is better in performance and less prone to errors
what is the difference between these two patterns?
View 1 RepliesCould somebody tell me what is the architecture of the .NET, and what is .NET framework and what are the very important things that I really need to learn? On googling I am not getting any satisfactory answers and I am getting more confused also.
View 1 RepliesI am redesigning a Solution's Architecture to implement SOA.
After doing the design changes I have come up with:
MySolution.Client.MyProject.Web ...... //ASP.NET WebSite
MySolution.Client.MyProject.Proxy .... //Service Proxy C# Library Project *[1]
MySolution.Service ................... //Service.cs for Service.svc is here
MySolution.Service.DataContract ...... //IService.cs for Service.cs is here *[2] [code]....
This project contains IService and Request/Response Classes
All methods in Service.cs takes the Request classes as input and return Response classes as output
Therefore this project is referenced by the 2 Client Projects(Web and Proxy), as it contains the IService and all of the Request/Response classes that will be required to communicate with Service.cs
*[3]MySolution.Model: This project contains the .edmx that is the Data Model of Entity Framework and some custom classes that are used in the project.
PROBLEM: Because I only use Request/Response classes to communicate between service and client, The MySolution.Service.DataContract project is only used by Service.cs and Repository.cs
And due to that all responses that Repository generates i have to map them to the properties of its respective response class (which make both the original returned entity, and the response class almost identical). But i am OKAY with it ...
e.g: GetCustomer() in Repository.cs method is called by Service.cs
GetCustomer() method in repository performs the LINQ query and return a "Customer" object
Service.cs then maps all the properties of "Customer" object to the "CustomerResponse" object
Service.cs then returns the "CustomerResponse" to the caller.
in this case most of the properties will repeat in both classes, if there is solution to this, its good, otherwise, I am fine with it.However, when Repository.cs's method GetCustomers() (Notice its not GetCustomer()) is called, it will return List of Customer object, and mapping this for return purpose would mean a "for loop" that iterates the collection and do the mapping ... this is NOT OKAY ...
is there any better way of doing this, considering I do not want to return "Customer" object without "CustomerResponse" as first of all it violates the SOA architecture, and secondly I don't want my Client Projects to have any reference to the Model or Repository projects.
I 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 am new to Entity frameworks-EF. As, EF is built on top of ADO.NET...If so, will there be any performance issue when we use it?Same way MVC also targets Test Driven , rapid application development only ..What speciality does it add for end-users?As per my understanding ASP.Net 2.0 itself is powerful without MVC and/or EF...
View 7 RepliesI have worked on larger projects in the past, and am working independently on a new project without the aid of the base code I have used in the past. Is there a recommended open source framework that contains the basic essentials (error handling, security, general structure) that can help me jump-start the development process. I will be using VS2010/Sql Server 2008/Windows Server 2008.
View 2 RepliesI am thinking to use entity model as DAL, how should I create the BLL then? What kind of datasourceobject should I use in the asp pages?
I am looking for best practice to use Entity framework 2 in the three layers design. I had experience at dataset with three layers design.
Should I use objectdatasource at the pages for gridviews? My guess is that entitydatasource by passed the BLL which is not good, so the only option left is the objectdatasource.
Could and should my BL object inherit those entity model in the DAL, so I dont need to recreate their object's property?
I am having troubles understanding the purposes of using Factory pattern, I understand Factory pattern uses Factory class that has methods to return concrete objects. But why don't I simply use new opertor to create concrete objects? Some articles suggest Factory methods could return objects of different concreate classes, I can do the same thing by using switch statement.
Also are there classes in .Net framework already implementing Factory pattern? I think that will give me a better ideas why it is useful.
At work I need to create a new web application, that will connect to an MySql Database.
(So far I only have expercience with Linq-To-Sql classes and MSSQL servers.)
My superior tells me to use the entity framework (he probably refers to Linq-To-Entity) and provide everything as a service based architecture. Unfortunately nobody at work has experience with that framework nor with a real nice server oriented architecture. This speficic project I'm leading will be long-term, meaning multiple years, so it would be best to design it the way, that multiple target plattforms like asp.net, c# wpf, ... could use it)For now, the main target plattform is ASP.net
So I do have the following questions:
1) Where can I read best what's really behind service oriented architecture (but for now beginner tutorials work fine as well) and how to use it in best practise?
2) So far I can't see a real difference between Linq-To-Sql classes and the information I've googled so far on the 'entity framework'. So, whats the difference? Where do I find nice tutorials for it?
3) Is there any difference in the entity framework regarding the database server (MSSQL or MySQL)? If not, does that mean that code snipperts I will stumble across will word database independent?
I'm using the mock framework to unit test some methods. I came across some methods that use delegates. I did not find a way to setup these delegates to return the objects that I want. The mock framework does not support it as far as I know. Is this supported in other mock frameworks like nMock?
View 3 RepliesI have a webservice(Framework 3.5/VS 2008) that assembles data from 3 other webservices and puts it into SQL Server 2005. The data from these webservices is mutually exclusive. What is the recommended architecture for the same?
View 5 RepliesI am using the ADO.NET Entity Framework for loading data from the database. The classes are directly mapped to database tables in the database. The problem is that these classes are not optimal for binding to the UI elements. As a result of this I have some custom entities which are populated at the service layer and returned. It is these custom entities (classes) to which I bind the UI elements. My questions on this are1. Is populating these entities at the service layer the most appropriate way to do this. I personally do not think so because if we introduce some additional UI elements which need different entities then I have to modify the service layer again.2. What is the best approach/pattern to get this done.
View 2 RepliesI'm looking for suggestions for the following issue, and I realize there is really not going to be a perfect answer to my question:I have a UI built in WinForms.NET (v4.0 framework) with WCF back-end and EF4 model objects, that I am looking to port to the web. UI is not huge and is not super complex and is structured well. But it is not a super simple system either. I am looking to pick a technology stack for the web-frontend that will target desktop & partially mobile platforms, provide a good development platform to build on, and facilitate code reuse across UI and back-end tiers...
[code]...
Any good example of Three tier architecture in entity framework 4.0 ...
View 1 RepliesI just tring to a complex (for me) with ado.net entity framework this is the structure: In practice it is a sort of group purchasing (Buyers) For each group of purchase (Buyer) should have the opportunity 'to select all products of the brands indicated in buyer I'm doing function to return correct data like this:
public List<Product> GetProductsByBuyer(int vBuyerId)
{
Buyersctx.Products.MergeOption = MergeOption.NoTracking;
return (from lProduct in Buyersctx.Products.Include("Brand").Include("Buyers")
where select lProduct).ToList();
}