In this article I will explain with an example, how to implement Paging and Sorting in ASP.Net MVC Razor.
This article will illustrate how to populate
WebGrid with Paging and Sorting enabled using
Entity Framework in ASP.Net MVC Razor.
Database
Here I am making use of Microsoft’s Northwind Database. You can download it from here.
Configuring and connecting Entity Framework to database
Now I will explain the steps to configure and add
Entity Framework and also how to connect it with the database.
You will need to add Entity Data Model to your project by right clicking the Solution Explorer and then click on Add and then New Item option of the Context Menu.
From the Add New Item window, select ADO.NET Entity Data Model and set its Name as NorthwindModel and then click Add.
Then the Entity Data Model Wizard will open up where you need to select EF Designer database option.
Now the wizard will ask you to connect and configure the Connection String to the database.
You will need to select the
1. SQL Server Instance
2. Database
And then click Test Connection to make sure all settings are correct.
Once the Connection String is generated, click Next button to move to the next step.
Next you will need to choose the
Entity Framework version to be used for connection.
Now you will need to choose the
Tables you need to connect and work with
Entity Framework. Here
Customers Table is selected.
The above was the last step and you should now have the Entity Data Model ready with the Customers Table of the Northwind Database.
Controller
The
Entity Framework is now configured and hence now we can create a Controller and write code to fetch the records from the
Customers Table of the
Northwind Database.
Inside the Index Action method, the Customer records are fetched using
Entity Framework and returned to the View.
public class HomeController : Controller
{
// GET: Home
public ActionResult Index()
{
NorthwindEntities entities = new NorthwindEntities();
return View(entities.Customers.ToList());
}
}
View
Inside the View, in the very first line the Customer Entity is declared as IEnumerable which specifies that the Model will be available as a Collection.
The
WebGrid is initialized with the Model i.e.
IEnumerable collection of
Customer Entity class objects as source.
The
WebGrid is created using the
GetHtml method with the following parameters.
HtmlAttributes – It is used to set the HTML attributes to the HTML Table generated by
WebGrid such as ID, Name, Class, etc.
Columns – It is used to specify the columns to be displayed in
WebGrid and also allows to set specific
Header Text for the columns.
Note: If the columns are not specified then
WebGrid will display all columns supplied by its source. It is very similar to the
AutoGenerateColumns feature of the ASP.Net GridView.
@model IEnumerable<WebGrid_EF_MVC.Customer>
@{
Layout = null;
WebGrid webGrid = new WebGrid(source: Model);
}
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width"/>
<title>Index</title>
<style type="text/css">
body
{
font-family: Arial;
font-size: 10pt;
}
.Grid
{
border: 1px solid #ccc;
border-collapse: collapse;
}
.Grid th
{
background-color: #F7F7F7;
font-weight: bold;
}
.Grid th, .Grid td
{
padding: 5px;
border: 1px solid #ccc;
}
.Grid, .Grid table td
{
border: 0px solid #ccc;
}
.Grid th a, .Grid th a:visited
{
color: #333;
}
</style>
</head>
<body>
@webGrid.GetHtml(
htmlAttributes: new { @id = "WebGrid", @class = "Grid" },
columns: webGrid.Columns(
webGrid.Column("CustomerID", "Customer Id"),
webGrid.Column("ContactName", "Customer Name"),
webGrid.Column("City", "City"),
webGrid.Column("Country", "Country")))
</body>
</html>
Screenshot
Downloads