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MVC with Asp.net

Model View Controller : MVC with Asp.net step by step implementation
"Models" in a MVC based application are the components of the application that are responsible for maintaining state. Often this state is persisted inside a database (for example: we might have a Product class that is used to represent order data from the Products table inside SQL).
Model code sample
using System;
1:using System.Collections.Generic;
2:using System.Text;
3:using BusinessEntities;
4:
5:namespace MVC.Module
6:{
7: public interface IEmployeeModel
8: {
9: bool AddEmployee(Employee emp);
10: Employee GetEmployee(int EmpId);
11:
12: }
13:
14:
15:
16: public class EmployeeModel : IEmployeeModel
17: {
18: public delegate void EmployeeAddedHandler(object sender, EmployeeAddedEventArgs e);
19: public event EmployeeAddedHandler EmployeeAdded;
20:
21:
22: public EmployeeModel()
23: {
24:
25: }
26:
27: public bool AddEmployee(Employee emp)
28: {
29: // call DAL Layer here. add employee to database.
30:
31: return true;
32: }
33:
34: public Employee GetEmployee(int EmpId)
35: {
36: Employee emp = null;
37:
38: // call DAL Layer here. get employee info from databse.
39:
40:
41:
42:
43: return emp;
44:
45: }
46:
47:
48: protected void onEmployeeAdded()
49: {
50: // EmployeeAdded(this,
51: }
52:
53: }
54:
55:
56: public class EmployeeAddedEventArgs : System.EventArgs
57: {
58: private bool _isAdded = false;
59:
60: public EmployeeAddedEventArgs(object isAdded)
61: {
62: _isAdded = (bool)isAdded;
63: }
64:
65: //public
66:
67: }
68:}
69:
View :
This layer all about presentation layer, simply inherit IView interface and implement the methods, thats the beauty of MVC design patteren, IView is always updated by IController.
View code sample
/*
1: * This layer will get data from MVC.Model,
2: * and will be controlled by MVC.Controller
3: *
4:*/
5:
6:using System;
7:using System.Collections.Generic;
8:using System.Text;
9:using BusinessEntities;
10:
11:namespace MVC.View
12:{
13: public interface IEmployeeView
14: {
15: Employee GetEmployee();
16:
17: void AddEmployee();
18: }
19:}
20:
"Controllers "
in a MVC based application are the components responsible for handling end user interaction, manipulating the model, and ultimately choosing a view to render to display UI. In a MVC application the view is only about displaying information - it is the controller that handles and responds to user input and interaction.
Controller code sample
using System;
1:using System.Collections.Generic;
2:using System.Text;
3:using BusinessEntities;
4:using MVC.Module;
5:
6:namespace MVC.Controller
7:{
8:
9: public interface IEmployeeController
10: {
11: bool AddEmployee(Employee emp);
12: Employee GetEmployee(int EmpId);
13: List<Employee> GetEmployees();
14: }
15:
16:
17:
18: public class EmployeeController : IEmployeeController
19: {
20: private IEmployeeView _view;
21: private IEmployeeModel _empModel;
22:
23: public EmployeeController()
24: {
25: this._view = view;
26: this._empModel = new EmployeeModel();
27: }
28:
29:
30: public bool AddEmployee(Employee emp)
31: {
32: bool _isAdded = _empModel.AddEmployee(emp);
33:
34: _view.AddEmployee();
35:
36: return _isAdded;
37:
38: }
39:
40:
41:
42: public Employee GetEmployee(int EmpId)
43: {
44:
45: return _empModel.GetEmployee(EmpId);
46: }
47:
48: public List<Employee> GetEmployees()
49: {
50:
51: return _empModel.GetEmployees();
52: }
53:
54:
55: }
56:}
57:
"Implementation "
Now look at the MVC implementation with asp.net page .
implementation with asp.net page
using System;
1:using System.Data;
2:using System.Configuration;
3:using System.Linq;
4:using System.Web;
5:using System.Web.Security;
6:using System.Web.UI;
7:using System.Web.UI.HtmlControls;
8:using System.Web.UI.WebControls;
9:using System.Web.UI.WebControls.WebParts;
10:using System.Xml.Linq;
11:
12:namespace MVCImplementation
13:{
14: public partial class MVCSample : System.Web.UI.Page, MVC.View.IEmployeeView
15: {
16: MVC.Controller.IEmployeeController _controller;
17:
18: protected void Page_Load(object sender, EventArgs e)
19: {
20: _controller = new MVC.Controller.EmployeeController(this);
21: }
22:
23:
24:
25:
26: #region IEmployeeView Members
27:
28: public Employee GetEmployee()
29: {
30: throw new NotImplementedException();
31: }
32:
33:
34:
35: public void AddEmployee()
36: {
37: BusinessEntities.Employee emp = new Employee();
38: emp.Name = txtName.Text;
39: emp.Address = txtAddress.Text;
40: emp.Email = txtEmail.Text;
41:
42: this._controller.AddEmployee(emp);
43: }
44:
45:
46: #endregion
47:
48: protected void btnAdd_Click(object sender, EventArgs e)
49: {
50: AddEmployee();
51: }
52:
53: protected void btnGetDetails_Click(object sender, EventArgs e)
54: {
55: gvDetails.DataSource = this._controller.GetEmployees();
56: gvDetails.DataBind();
57: }
58: }
59:}
60:
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Asp.net, Ado.net, .Net Remoting, .Net Webservice, SQL, XML, XSLT, WCF, WPF, WWF NHibernate, Ajax, Jquery, DHTML