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CRUD Operations using jQuery dialog, Entity Framework and ASP.NET MVC

Posted By : Shailendra Chauhan, 17 Nov 2012
Updated On : 11 Jun 2014
Total Views : 191,595   
Support : MVC5, MVC4 & MVC3
 

This article will demonstrate, how to create an Asp.Net MVC application with CRUD (Create, Read, Update, Delete) Operations using jQuery and Entity Framework code first. suppose you have following data model and DataContext classes in EF.

 public class User
 {
 public int UserID { get; set; }
 [Required(ErrorMessage = "Please Enter Your Name")]
 public string Name { get; set; }
 [Required(ErrorMessage = "Please Enter Your Address")]
 public string Address { get; set; }
 [Required(ErrorMessage = "Please Enter Your Contact No")]
 public string ContactNo { get; set; }
 }

public class DataContext : DbContext
 {
 public DataContext()
 : base("DefaultConnection")
 {

 }

 public DbSet<User> Users { get; set; }
 }

Now migrate your data model class into SQL Server database by using EF code first database migration. For more help refer this link Understanding Entity Framework Code First Migrations

Create Operation

Read Operation

Update Operation

Delete Operation

Making jQuery dialogs for CRUD Operations

 @model IEnumerable<jQuery_CRUD.DAL.User>
@{
 ViewBag.Title = "Index";
}
<script src="~/Scripts/jquery-1.8.2.min.js"></script>
<script src="~/Scripts/jquery-ui-1.8.24.min.js"></script>
<link href="~/Content/themes/base/jquery-ui.css" rel="stylesheet" />
<script>
 $(document).ready(function () {
 var url = "";
 $("#dialog-alert").dialog({
 autoOpen: false,
 resizable: false,
 height: 170,
 width: 350,
 show: { effect: 'drop', direction: "up" },
 modal: true,
 draggable: true,
 open: function (event, ui) {
 $(".ui-dialog-titlebar-close").hide();
 },
 buttons: {
 "OK": function () {
 $(this).dialog("close");

 },
 "Cancel": function () {
 $(this).dialog("close");
 }
 }
 });

 if ('@TempData["msg"]' != "") {
 $("#dialog-alert").dialog('open');
 }

 $("#dialog-edit").dialog({
 title: 'Create User',
 autoOpen: false,
 resizable: false,
 width: 400,
 show: { effect: 'drop', direction: "up" },
 modal: true,
 draggable: true,
 open: function (event, ui) {
 $(".ui-dialog-titlebar-close").hide();
 $(this).load(url);
 }
 });

 $("#dialog-confirm").dialog({
 autoOpen: false,
 resizable: false,
 height: 170,
 width: 350,
 show: { effect: 'drop', direction: "up" },
 modal: true,
 draggable: true,
 open: function (event, ui) {
 $(".ui-dialog-titlebar-close").hide();

 },
 buttons: {
 "OK": function () {
 $(this).dialog("close");
 window.location.href = url;
 },
 "Cancel": function () {
 $(this).dialog("close");
 }
 }
 });

 $("#dialog-detail").dialog({
 title: 'View User',
 autoOpen: false,
 resizable: false,
 width: 400,
 show: { effect: 'drop', direction: "up" },
 modal: true,
 draggable: true,
 open: function (event, ui) {
 $(".ui-dialog-titlebar-close").hide();
 $(this).load(url);
 },
 buttons: {
 "Close": function () {
 $(this).dialog("close");
 }
 }
 });

 $("#lnkCreate").live("click", function (e) {
 //e.preventDefault(); //use this or return false
 url = $(this).attr('href');
 $("#dialog-edit").dialog('open');

 return false;
 });

 $(".lnkEdit").live("click", function (e) {
 // e.preventDefault(); use this or return false
 url = $(this).attr('href');
 $(".ui-dialog-title").html("Update User");
 $("#dialog-edit").dialog('open');

 return false;
 });

 $(".lnkDelete").live("click", function (e) {
 // e.preventDefault(); use this or return false
 url = $(this).attr('href');
 $("#dialog-confirm").dialog('open');

 return false;
 });

 $(".lnkDetail").live("click", function (e) {
 // e.preventDefault(); use this or return false
 url = $(this).attr('href');
 $("#dialog-detail").dialog('open');

 return false;
 });

 $("#btncancel").live("click", function (e) {
 $("#dialog-edit").dialog("close");
 return false;
 });
 });
</script>
<div id="dialog-alert" style="display: none">
 <p>
 @TempData["msg"]!
 </p>
</div>

<div id="dialog-confirm" style="display: none">
 <p>
 <span class="ui-icon ui-icon-alert" style="float: left; margin: 0 7px 20px 0;"></span>
 Are you sure to delete?
 </p>
</div>

<div id="dialog-edit" style="display: none">
</div>
<div id="dialog-detail" style="display: none">
</div>

<h2>Users List</h2>

<p>
 @Html.ActionLink("Create New", "Create", null, new { id = "lnkCreate" })
</p>
<table>
 <tr>
 <th>
 @Html.DisplayNameFor(model => model.Name)
 </th>
 <th>
 @Html.DisplayNameFor(model => model.Address)
 </th>
 <th>
 @Html.DisplayNameFor(model => model.ContactNo)
 </th>
 <th></th>
 </tr>

 @foreach (var item in Model)
 {
 <tr>
 <td>
 @Html.DisplayFor(modelItem => item.Name)
 </td>
 <td>
 @Html.DisplayFor(modelItem => item.Address)
 </td>
 <td>
 @Html.DisplayFor(modelItem => item.ContactNo)
 </td>
 <td>
 @Html.ActionLink("Edit", "Edit", new { id = item.UserID }, new { @class = "lnkEdit" }) |
 @Html.ActionLink("Details", "Details", new { id = item.UserID }, new { @class = "lnkDetail" }) |
 @Html.ActionLink("Delete", "Delete", new { id = item.UserID }, new { @class = "lnkDelete" })
 </td>
 </tr>
 }

</table>

Controller for handling CRUD Operations

 public class UserController : Controller
 {
 private DataContext db = new DataContext();

 // GET: /User/
 public ActionResult Index()
 {
 return View(db.Users.ToList());
 }

 // GET: /User/Details/5
 public ActionResult Details(int id = 0)
 {
 User user = db.Users.Find(id);
 if (user == null)
 {
 return HttpNotFound();
 }
 return View(user);
 }

 // GET: /User/Create
 public ActionResult Create()
 {
 return PartialView();
 }

 // POST: /User/Create
 [HttpPost]
 [ValidateAntiForgeryToken]
 public ActionResult Create(User user, string Command)
 {
 if (ModelState.IsValid)
 {
 db.Users.Add(user);
 db.SaveChanges();
 TempData["Msg"] = "Data has been saved succeessfully";
 return RedirectToAction("Index");
 }

 return View(user);
 }

 // GET: /User/Edit/5
 public ActionResult Edit(int id = 0)
 {
 User user = db.Users.Find(id);
 if (user == null)
 {
 return HttpNotFound();
 }
 return View(user);
 }

 // POST: /User/Edit/5
 [HttpPost]
 [ValidateAntiForgeryToken]
 public ActionResult Edit(User user)
 {
 if (ModelState.IsValid)
 {
 db.Entry(user).State = EntityState.Modified;
 db.SaveChanges();
 TempData["Msg"] = "Data has been updated succeessfully";
 return RedirectToAction("Index");
 }
 return View(user);
 }

 // GET: /User/Delete/5
 public ActionResult Delete(int id)
 {
 User user = db.Users.Find(id);
 db.Users.Remove(user);
 db.SaveChanges();
 TempData["Msg"] = "Data has been deleted succeessfully";
 return RedirectToAction("Index");
 }

 protected override void Dispose(bool disposing)
 {
 db.Dispose();
 base.Dispose(disposing);
 }
 }
What do you think?

I hope you will enjoy these tricks while programming with ASP.NET MVC. I would like to have feedback from my blog readers. Your valuable feedback, question, or comments about this article are always welcome.


 
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About the Author
Hey! I'm Shailendra Chauhan full-time author, consultant & trainer. I have more than 6 years of hand over Microsoft .NET technologies and other web technologies like JavaScript, AngularJS, NodeJS etc. I am an entrepreneur, the founder & chief editor of www.dotnet-tricks.com and www.dotnettricks.com. I am author of most popular e-books for technical Interview on ASP.NET MVC Interview Questions and Answers & AngularJS Interview Questions and Answers & LINQ Interview Questions and Answers.
I have delivered 100+ training sessions to professional world-wide over Microsoft .NET technologies such C#, ASP.NET MVC, WCF, Entity Framework and other mobile technologies such Ionic, PhoneGap, Corodva. Read more...
 
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