Web Forms :: Create DAL Layer For Three Tier Architecture

Oct 30, 2012

How to create the DAL Layer for the 3tier Architechture

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Similar Messages:

Architecture :: Exception Layer In N-tier Architecture?

May 13, 2010

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.

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How To Use Of Business Layer In 3-tier Architecture

Jan 27, 2011

I am implementing 3-tier architecture. I just wanted to know the role of business layer in 3-tier architecture.

I am developing application in using entity framework. So I have entity object which is accessiable in PL,BL & DL. My question is whether input assignment to entity object should be in PL OR BL.(Consider there is save method)

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Difference Between Three Tier And Three Layer Architecture?

Feb 12, 2011

whats 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.

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Passing XML Document Among 3-tier Architecture Layer?

Oct 31, 2010

I am making use of 3-tier architecture.In UI layer, i am getting user input and converting it into XML document. But now question arises that how can i pass this xml document to business and data access layer?

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Architecture :: Impact Of Using Static Methods In Business Access Layer In 3 Tier Applciation?

Aug 25, 2010

is there any impact of using static methods in Business Access layer in 3 tier applciation,

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Web Forms :: Create A Simple Class Based One Tier Architecture

Mar 20, 2014

I am beginner in asp.net / vb.net and I developed a web application for inventory management. here I have my insertion procedure that I entered in my code behind all the different page of my application. My problem is the following:

* I would like to put my procedure in a class that I will call on my different page * how to create this class * how to call this class on my pages

here is my procedure:

Private Sub reqinsertion (ByVal sreq As String)
         Dim con As New System.Data.Odbc.OdbcConnection ("Dsn = dshealthboard")
         Sun ocommand As System.Data.Odbc.OdbcCommand
         con.Open ()
         ocommand = New System.Data.Odbc.OdbcCommand (sreq, con)
         ocommand.ExecuteNonQuery ()
         con.Close ()
     End Sub

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Architecture :: How To Create 3 Tier Architecture

Mar 29, 2011

I was tasked to create 3 tier web application. However, i browsed through many books & tutorials. The examples are doing it using Object data source which my lecturers claimed that it is not 3 tier at all. Shouldn't be dragging any data source into deisgn view. Any comprehensive examples for me to take reference from?

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Architecture :: How To Create 3-tier Architecture

Sep 16, 2010

structure of 3-tier architrcture

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Architecture :: How To Pass The Values From Presentation Layer To Business Logic Layer

Oct 26, 2010

I am new to this .NET what is the difference between N-Tier and 3- Tier Architecture. If they are same. How to pass the values from presentation layer to business logic layer.

For Example

I have 10 controls in presentation layer. I passing values to these controls. How the architecture works.

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Architecture :: Data Access Layer And Business Logic Layer?

Jun 24, 2010

I am building a web site following the tutorials on asp.net. I am using dataset as data access lay, and writing classes to access the dataset. But the example is just basic ideas, how do I retrieve individual table column value in the business layer?For example, if I have a table called Product, I only want to find out what is the product name by product id. I did this in my ProductBLL:

public ProductBLL
{
public int GetProductName(string productId)
{
ProductDataSet.ProductDataTable prodData = Adapter.GetProductById(productId);
[code]...

Is there a better way, or am I doing this correctly? Can anybody give me a reference to a more complicated business logic model?

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Architecture :: How The Data Pass From One Layer To Another Layer In Mvc Design Pattern

Apr 1, 2010

how the data pass from one layer to another layer in mvc design pattern...

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Architecture :: Entity Model Design Framework And N - Tier Architecture

Dec 25, 2010

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

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Architecture :: Asynchronous Page Processing In 3 Tier Architecture?

Jul 30, 2010

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]....

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Architecture :: What Is The Difference In 3-tier Architecture And Gereral Way Of Programming

May 20, 2010

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 ?

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ADO.NET :: Entity Framework 4 - 3 Layer Versus 3 Tier

Aug 2, 2010

In this website article http://aspalliance.com/1943_ASPNET_40_and_the_Entity_Framework_4__Part_4__A_3_Layered_Approach_to_the_Entit_Framework

Vince Varallo says this in his opening paragraphs. "it will introduce a pattern for developing the application as a three layered application. Notice that I didn't say three tiered application. A tier really means a logical and physical separation of the layers. A layer implies just a logical separation. For many applications that's all you need. I'm not one to advocate over-engineering a system.

I always follow the simpler, better approach as long as the developers working with you understand the pattern."

Question 1. Can some explain to me what is difference between a 3 layer application and a 3 tiered application?

Question 2. Also, can some give me a link to a simple 3 tiered tutorial for entity framework?

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Visual Studio :: How Many Layer-Tier In LINQ To SQL .net Web Application

Apr 1, 2010

I have question about N-tier architecture. everyone about 3-Layer architecture these are:1). UI Layer, 2). Business Layer, 3). Data Access Layer.i already have worked on this.Then i heard about LINQ to sql. please tell me how many layer an web application should contain. As my knowledge. if i use LINQ to slq then i have to worked only 2-Laye

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Architecture :: Function Implementation In 3-tier Architecture?

Apr 28, 2010

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?

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Architecture :: Design Pattern And Tier Architecture

Jun 12, 2010

I 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?

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Web Forms :: N Tier Architecture Using WCF

Jun 1, 2012

My application was designed using following n-architecture : Presentation layer...wcf service layer...business logic layer..data access layer Presentation layer is in one server,wcf service,bll,dal are in another server. I  knew something about wcf but how to implement this architecture.

I am looking for code sample for the above type of architecture.

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Architecture :: How To Pass The Data Between Data Access Layer And Business Acces Layer

Jun 3, 2010

here i have in 3-tier architecture , how to pass the data between DAL and BAL. i am using grid view to edit the data,when ever i click on the edit button all the corresponding fields should come to textboxes. i tried for delete ,it works fine bt not working to EDIT.

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Web Forms :: How To Implement 3-tier Architecture

May 7, 2015

I want to use 3 -tier archhitecture in my registration form how to do that in a simple way....

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Architecture :: Trying To Use A 3-tier Architecture (UI, BAL & DAL) For Project?

Nov 30, 2010

I am trying to use a 3-tier architecture (UI, BAL & DAL) for my project. I have each of the tier in different physical machines.

UI - Machine 1
BAL - Machine 2
DAL - Machine 3
How can DAL & BAL interact? What would be the best way to call one component from another?

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Architecture :: How To Develop An App Using 3 Tier Architecture

Aug 18, 2010

i want to develop an application in asp.net using 3 tier architecture .

i know that there are three layers

Data layerBusiness Layer

Data Access LayerBusiness Logic Layer Presentation Layer. I am confused between Data Access Layer and Business Logic Layer.

In data access layer we develop the property classes and main class function which returns datasets, datatables and data reader to Presentation layer.

what is the use of Business Logic Layer ? what actually we do in Business logic Layer
?? we can pass data directly from data access layer to presentation layer ?

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Architecture :: Namespace 3 Tier Architecture?

Feb 5, 2010

i am in the process of creating 3 tier architecture for ASP.net with Microsoft Studio 2005.

My architerture is as below

Presentation Layer Business Logic Layer Data Access Layer


-------------------------- --------------------------- -------------------------------

Form1 BLTable1 DaTable1
(NameSpace = MyCompany.MyProject.BL. BLTable1) (NameSpace = MyCompany.MyProject.DA. DaTable1)
Form2 BLTable2 DaTable2
(NameSpace = MyCompany.MyProject.BL. BLTable2) (NameSpace =
MyCompany.MyProject.DA. DaTable2)
Form3 BLTable3 DaTable3
(NameSpace = MyCompany.MyProject.BL. BLTable3) (NameSpace = MyCompany.MyProject.DA. DaTable3)

I have 2 question here:

(1).MSDN say that we should not have the namespace where its name is same with class name but it does not exlpain why.Does anyone know why? The msdn page is
http://msdn.microsoft.com/en-us/library/893ke618%28VS.71%29.aspx

(2). Business Logic Layer BLTable1 need to interact with Data Access Layer
DaTable1 , so i put the code: imports MyCompany.MyProject.DA. DaTable1 inside
BLTable1, so that i can have access to all the public shared method inside
DaTable1 in BLTable1 for example : DaTable1.Save()

But problem arise when BLTable1 want to use the public shared method in BLTable2 .

I have put the code imports MyCompany.MyProject.BL. BLTable2 inside BLTable1,but i need to
key in the class name twice only can access to the public shared method inside
BLTable2 for example :BLTable2.BLTable2.Save.

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