In this article I will explain with an example, how to highlight row of WebGrid on MouseOver (Mouse Hover) using CSS in ASP.Net MVC Razor.
 
 
Database
Here I am making use of Microsoft’s Northwind Database. You can download it from here.
Download and install Northwind Database
 
 
Entity Framework Model
Once the Entity Framework is configured and connected to the database table, the Model will look as shown below.
Note: For beginners in ASP.Net MVC and Entity Framework, please refer my article ASP.Net MVC: Simple Entity Framework Tutorial with example. It covers all the information needed for connecting and configuring Entity Framework.
 
Highlight row of WebGrid on Mouseover (Mouse Hover) using CSS in ASP.Net MVC
 
 
Controller
The Controller consists of the following Action method.
Action method for handling GET operation
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 this 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.
The RowStyle and AlternatingRowStyle properties of the WebGrid  are assigned a CSS class named row. This CSS class is applied to all the TR elements of the WebGrid  rows except Header and Pager rows.
When the mouse enters a TR element, all the background color of all the TD elements belonging to the TR element are changed.
@model IEnumerable<WebGrid_Row_Highlight_MVC.Customer>
 
@{
    Layout = null;
    WebGrid webGrid = new WebGrid(source: Model, canSort: false);
}
 
<!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;
        }
        .Grid .row:hover td
        {
            background-color:gold;
            cursor:pointer;
        }
    </style>
</head>
<body>
    @webGrid.GetHtml(
        rowStyle: "row",
        alternatingRowStyle: "row",
        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
Highlight row of WebGrid on Mouseover (Mouse Hover) using CSS in ASP.Net MVC
 
 
Downloads
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