Introduction
In this article I will tell you how to use the jQuery UI Tooltip with the Web API. Tooltip is a small pop-up window with a text message. It works when the cursor moves to an element such as a TextBox, Button and so on. In this article you will see that when you move the cursor to the text box it display a Tooltip. A Tooltip is also used in Graphical User Interfaces to help explain controls. 
The following is the procedure for creating the application.
- Create a Web API application.
 
- Start Visual Studio 2012.
 
- From the start window select "New Project".
 
- From the new project window select "Installed" -> "Visual C#" -> "Web".
 
- Select "ASP.NET MVC4 Web Application" and click the "OK" button.
 
- From the "MVC4 Project" window select "Web API".
 
- Open the "index.cshtml" file for writing the code of the Tooltip. This file exists:
 
- In the "Solution Explorer".
 
- Expand the "views" folder.
 
- Select "Home" -> "Index.cshtml"
 
Add the following code:
@{
    ViewBag.Title = "Index";
}
<link rel="stylesheet" href="http://code.jquery.com/ui/1.9.2/themes/base/jquery-ui.css" />
<script src="http://code.jquery.com/jquery-1.8.2.js"></script>
<script src="http://code.jquery.com/ui/1.9.2/jquery-ui.js"></script>
<script>
    $(document).ready(function () {
        $("#name").tooltip({ track: true });
        $("#address").tooltip({ track: true });
    });
</script>
<h4>
   
jQuery UI Tooltip With Web APIr</h4>
   Name :@Html.TextBox("Name","", new { @title = "Enter Your name.", @id = "name" })<br /><br />
Address :@Html.TextBox("Adress","", new { @title = " Enter your address.", @id = "address" })
 
 
The following code displays the Tooltip:
$(document).ready(function () {
        $("#name").tooltip({ track: true });
        $("#address").tooltip({ track: true });
    });
- 
Execute the application by pressing "F5". The output looks like this:
![tool3.jpg]()
 
Move the cursor to the nametextbox. It display a Tooltip with the text message.
![tool4.jpg]()
Now after entering the name move the TextBox to the Address TextBox then it displays a Tooltip.
![tool5.jpg]()