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Questions tagged [3-tier]

For issues relating to setting up and utilizing a 3-tier architecture.

3-tier is a software architecture in which the presentation layer, business access layer and data access layer are developed and maintained as independent modules, sometimes on separate platforms.

370 questions
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Good implementation approach for Layered application with 3-tier architecture?

I am developing an application using MVC3 and Entity Framework. Its a three layered approach with Presentation Layer hosted in Web Server and Business Layer and Data Access Layer in Application Server. We are not exposing the Object Context to…
Biju Thomas
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3-tier architecture, web application and user logging

In a web application that respects a 3-tier architecture, who is responsible for the implementation of a user logging module: the presentation tier or the application one? I'm asking that question because a user logging module isn't really part of…
sp00m
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About 3-tier architecture and symfony framework

Both of them are based from mvc. But in 3-tier architecture,storage layer is a separate layer, while in symfony framework,database(storage) level is included in model layer. Why are they different?
omg
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How to implement 3 tier approach using Entity Framework?

I know this question is asked many times, but I couldnt get a clear picture of what I need. I have a WPF application which I need to redo using 3- Tier approach. I have used Entity Framework for creating datamodel and using Linq queries for…
sony
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Have kept format of ajaxcalendar control as "dd/mm/yyyy" and want to save in database as mm/dd/yyyy

I m using ajax calendar control to a textbox, have set its format as "dd/mm/yyyy" . Bapur.Date = txtdate.Text; in data access layer cmd.Parameters.Add("@Date", SqlDbType.DateTime).Value = bapur.Date; on saving, like above ( where Date is a…
Zoya
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Send text to upper tier in WPF application

I'm doing a WPF (NOT web) application. 3-tiers EF Code First UI tier references to Logical tier and Logical tier references to Data tier. Now, I have an exception in the Data tier and I need to show a MessageBox based on the text generated by the…
user1537004
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3 Tier Architecture c#.

I having problems with my 3 tier architecture. It seems that I could not count the number of players due to implicit conversion from object to Int. DropDownList protected void ddlManufacturer_SelectedIndexChanged(object sender, EventArgs e) { …
Challenger
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How to use events for communication between tiers in an MVC application

I am trying to use events as a form of communication between the tiers in a 3 tier application since events are recommended way to avoid coupling between tiers. However I am not able to figure how to use events when synchronous response is needed in…
devanalyst
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How to design a website when its content layout needs to be changed all the time?

Our team is building a new web site with ASP.NET. We plan to use a 3-tier architecture. The problem is that the controls shown on the web page need to be changed all the time according to the customer's requirements, which means adding a pair of…
ugoa
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Issue with Linq with 3 tier

I had created one .dbml file. I want to do coding in 3 tier architecture. Now I have one table like UserMaster in dbml file. Can I use that UserMaster in my aspx.cs page? or I have to create properties and assign values in business logic?
Viprat.Shah
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How do I reach the middle tier using the memship class?

I have a 3-tier ASP.NET 2.0 app. I want to use the Membership.ValidateUser method of the membership class using the credentialls added with the login control. As stupid as it seems, I can't figure out how to have the ValidateUser control call…
Donde
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Updating DataSet - in which layer?

I try to construct 3-tier application. In DAL I get data from database (No-SQL) to DataSets. In BLL I process this data if it is necessary. In PL I show appropriate data. The question is: If data in database are still updating, and I need to have at…
Saint
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How to use the cache functions of KbmMW?

I have set the kbmMWUNIDACConnectionPool properties as this on the Server-side: kbmMWUNIDACConnectionPool1.EnableCache := True; kbmMWUNIDACConnectionPool1.MaxCacheAge := 30; kbmMWUNIDACConnectionPool1.MaxCacheEntries :=…
PFeng
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How many tiers does my application have?

I have done research on the different kinds of architectures but I'm still not too comfortable choosing between 3-tier and 4-tier. What constitutes a 4-tier system? My application is as follows: The client is based on iOS iPhone app using MVC…
Leo Correa
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How to get the kbmMW client query statement on server-side?

I found the "OnQueryStatement" method : procedure TkbmMWQueryService2.kbmMWQueryServiceQueryStatement(Sender: TObject; Place: TkbmMWQueryOperationType; var NamedQueryName, Statement: string); begin Form1.Memo1.Lines.Add(Statement);//show the…
PFeng
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