Create and Implement 3-Tier Architecture in ASP.Net

I tried running the application but it had build errors. These are specifically to with sqlconnection. Kindly assist

I have to do all step you have been mention in (last step) I am could not add reference of all 3 layers. so how to fix this please help me.

In the case of reading a text file, the information must be loaded from the Data Layer?

Hi Sainesh, first of all very good article, I have one question, how can we deploy logic, object and data on three different machines and the actual database on a 4th machine for scalibility, faster performance etc. Thanks.

Hai, Can i use web api and json, on a three tier web application? every tutorial i look for ends up on MVC based ones.

UserBL is not showing in aspx.cs file even after adding "using BusinessLogic" on top.

I have followed all your guideline but ConfigurationManager is not working in UserDA.cs file and "using BussinessObject" is not accessible in UserBL.cs file. How to over come this problems ?

Hello. I have one proyect using 3Tier architecture. I would like to know how to publish this in IIS. For a normal ASP web forms I used to copy a folder that included the .aspx files, content, bin and some other files. But wirh 3 tier I am not sure which folder should I copy

Very nice article, thank you bro. Took me less than 10 mins to upgrade to VS 2013, setup and run the project.

Thank you Saineshwar for what is a genuinely a terrific article. It is extremely valuable in that it presents a simple and concise example that is clean and scalable. As simple as the example is, it presents a much LARGER lesson, and it is serving me extremely well in my career for a solution I am currently developing. It is kinda funny reading some of these comments that miss the entire value of this article. “The definition of genius is taking the complex and making it simple.”" - Albert Einstein

This is Wrong.. People Don't consider it

BtnSave_Click - what is the code of this click event?

Its very nice article but if we want to store unique email id's then

Where does your asp form link to your userBL method?

Hey, We call an application 3 layer if all the 3 layers are deployed in single server. However, if they are in different physical server then it would be considered as 3 tier. In 3-tier application, your application layer , dataAccess layer and Business layer would in in 3 different servers.

Thanks sir. Working Fine.. But.. Can u explain... this is 3 tire or 3 layer... If three layer.. than pl.. tell me what is different b/w 3 layer and 3 tire architecture...

As per my best knowledge this not a 3 tier architecture or may be I am not getting . its typical example of layer architecture so title may be layer architecture instead of tier, Mahesh Chand sir Vidya Vrat Agarwal sir can you explain about this in your next articles .

Good

Amazing Article. Perfect learning solution for the newer student or professional.

Perfect Article each things defined clearly but one must download the file after doing these things mention above. thank you! Sir

Thanks

How canwe create n tier in windows application

Nice...

Thank You Sir, I have tried the above example Many times but every time it is not showing any error but the button "Save" is not performing any Action????

Yes yes. I have used that

Hey I got the above error. I am very new to it. Am I missing anything?

<asp:Button ID="BtnSave" runat="server" Width="100px" Text="Save" OnClick="BtnSave_Click" /> This is the error I get. CS1061: 'ASP.userregistration_aspx' does not contain a definition for 'BtnSave_Click' and no extension method 'BtnSave_Click' accepting a first argument of type 'ASP.userregistration_aspx' could be found (are you missing a using directive or an assembly reference?)

New rebuild all layers. Last step Right-click on the project and select "Add references" Click the "Add Reference" tab Select "Project" Inside that you will see all Layer Name. Select all add thn click "Ok" Now build the project. If I try to add a reference to Business Object and data access and again, it doesn't allow. I didn't understand this step. Is there something I am missing. And it doesn't recognise BusinessObject Namespace in UserDA.cs thoughI have added BusinessObject refereance.

Indepth article for 3tier .thanks..

Nice article but i have one question, What is the different between layering(project) and tier.

nice article

it realy helpfull for begener....................

how to display data in a gridview using ur code structure.

useful artical

nice artical.. very usefull

http://asp3tier.blogspot.in/p/aspnet-3-tier-architecture.html

Nice artical sir..Thanks

Nice article..............

Nice

How to implement AJAX usinf WebMethod-Entity in this architecture ?

I m new to .net programming and accidentally dropped in an article about 3 tiers when creating an asp.net.I understood clearly with your explanation and great names you give in your project.Thank you for sharing.

WHERE IS THE BUTTON CLICK CODE

and also getting error in Register public int SaveRegisterBAL(Register? objRegisterBAL)

Can u please teel me i need to be write page behind code of my aspx file in that 3 tyre arch..

nice...

sprocUserinfoInsertUpdateSingleItem and will u please elobrate the sp as well

Very Good Solution can we implement the same with angular.js

good aritcle

Its your .aspx page

where to write presentation layer code(html)

Issue Solved Thank you

Showing error not all code paths return a value how to do solve it..

then whats problem Deepthi

Presentation layer public void BindLeaveList() { DataTable dt = Logic.GetLeavelist(Session["Username"].ToString(), Session["UserAcess"].ToString()); drpdwnLeavetype.DataSource = dt; drpdwnLeavetype.DataValueField = "id"; drpdwnLeavetype.DataTextField = "Leavename"; drpdwnLeavetype.DataBind(); drpdwnLeavetype.Items.Insert(0, new System.Web.UI.WebControls.ListItem("Select", "0")); }

Bussiness logic public DataTable GetProjectNamesList(string strUserName, string strUserAccess) { try { DataTable dsProj = new DataTable(); dsProj = da.Get_ProjectNamesList(strUserName, strUserAccess, ); } catch (Exception ex) { throw ex; }

Data Access Layer public DataTable Get_ProjectNamesList(string strUserName, string strUserAccess,DBManager db) { try { string strProj = string.Empty; if (strUserAccess == "2") strProj = "Select Id,projectname from tb_Projects where Isdelete = 0 and Isarkive=0 and clientname='" + strUserName + "' order by 'projectname' "; else strProj = "Select Id,projectname from tb_Project where Isdelete = 0 and Isarkive=0 order by 'projectname'"; DataSet dsProj = db.ExecuteDataSet(CommandType.Text, strProj); return dsProj.Tables[0]; } catch (Exception ex) { throw ex; } }

I did everything can below is my code ..let me know

Hi how to bind data into dropdown in 3 tier archieture. Using select statement I am unable to get data..Can you please let me know

Well explained as required. Excellent job done !! Thank you !!

This Article is very simple and easy for me, Today my doubt have cleared about 3 tire architecture ...... thanks sir

very helpful to clear concept and actual work.....Thanks...

follow steps as i have written you will get

yes sir pls help

Muhammad Rizwanuddin sir are u fresher in this technology

sir i don't understand

What is the code at button click

Very Nicely explained, excellent article

thanks Md. Raskinur Rashid sir

very good presentation. i will share it everyone those who want to learn N-tier architecture

hi it is very simple and nice article everyone can understand easily this is achieve by your better effort and hardworking thanks a lot of

very helpfull for me

Very easy article.! Thanks You.!

hirachand here is link :- http://www.visualstudio.com/en-us/downloads#d-professional

please anyone give me a visual studio 2013 setup link

how to write 3 tier insert code in gridview please help me

its very good article .. thank u

Thank you for your response. I am very well aware of the differences between a 3-tier architecture and the MVC design methodology. It is good you pointed this out since some people think that MVC is an architecture. My question was: "Can you use an implementation like this to to implement a 3-tier architecture using MVC?" for instance maybe the Presentation layer is the VC part of MVC and then there is some way to implement the Business Logic and Database Layers by re-configuring the existing Controller and Model so that the Controller becomes thin and the BL becomes fat. and then speaks with the Model layer of the 3-tier architecture. I ask this question since I have seen a lot of talk about it but not yet have I found an example of it's implementation. I have not yet checked the link you posted but I wanted to clarify that there was no confusion in the differences between MVC and 3-tier.

you can add DAL to Project and Work with it http://tutoriz.com/Thread-CREATE-3-TIER-ARCHITECTURE-IN-ASP-NET-MVC-DAL-BLL-Part-1-3

MVC and 3-tier architecture are different things all together. If they were the same, then anybody with a 3 tier architecture would by definition have implemented MVC. Since that would be a false statement, we can safely say that they are not the same thing. MVC has specific architectural patterns as to how the tiers interact that differ from a straight 3 tier architecture.

Can this implementation be applied to a MVC 5 project? I would like to convert my existing VS 2013 MVC 5 project to a 3-tier architecture, but this example is in VS 2012 for a regular web application.

download code you will get Purvesh Sangani sir

hello Mr. Saineshwar please can you show button code.

Nice Article

hello sir,

I am looking for code to inserting data in to multiple table of database from same insert method in data access class using hash table.. Can u plz help me.?

Its really very useful. Thank u..

thanks so much.This gives a good start for beginners...:) cool

there is code and stored procedure for it just download sample application which i have provided mk sir

There is no code for stored procedure and Save button...

thanks

Nice Article and good work.

when i inter connect each layer i getting this error A refrence to Buusinesslogic could not be added , Adding this project as a reference would cause a circular dependency

Good Project sir,

One datatype issue in Store PROCEDURE [sprocUserinfoInsertUpdateSingleItem] ,@EmailID nvarchar=NULL make it @EmailID nvarchar (50)

Good project, but missed explaing about the code behind for the UI (Userregistration.aspx page)

if you download sample in that i have done it please check.

Yes, i got that point. But to make the code work, dont we need to incorporate the above mentioned points 1 & 2 in the code sample? Thanx in advance

1)We need to pass all values of controls to Business object 2) And then send Business object to Business logic layer after this it will be connected to DataAccess class. if you got then Please Reply me sir.

1) I think we need to add a reference of Business object in the Business logic, 2)Configuration Manager(for database connection has to referenced in each of the individual projects ,otherwise it's not accessible through Intellisense), 3) We need to create objects of Business object and Business logic in the Presentation layer(Default.aspx) so as to pass the values from the controls to the properties and then to the Business Logic.

Thank You really made my job easy :)

Good Work. Thanks for such a good article.

sorry i had not dispose and closed things please do it to save memory leaks 1) ObjBO.Dispose(); 2) con.close();

hey friends are there for u http://dotnet-sai.blogspot.in/

Very useful Articles...Thanks Saineshwar Sir

Raseeth A now sql script is avaiable

Raseeth A sorry to tell u i have submit my script with code but they have not posted i will give u on 4/1/2014

where is the Store Procedure for Insert (sprocUserinfoInsertUpdateSingleItem)

Thanks Sam Hobbs sir

Thank you for providing a simple explanation of a complex and useful topic. I think this will help many people. Note however that it helps to be careful about the historical perspectives when they are provided. I want to say that in truth, the reason for the old-fashion Host Architecture was that at the time of its use (with Dumb Terminals) smart terminals were very expensive. Yes dumb terminals were unfriendly but smart terminals were very unfriendly to the managers that had to justify the huge cost. Note also that it is absolutely not true that a Host Architecture was not capable of distributed databases. Distributed databases existed long before Microsoft and the internet existed.

You're welcome Saineshwar.

thanks sir

Nicely explained Saineshwar. Love the second diagram. A tier usually means a separate hardware layer. So 3-tier means your UI (website) can be hosted on a Web Server, Business layer can be hosted on a different server that is doing lot of business processing and your database layer (SQL Server for example) is hosted on a different server.