JavaScript (JS) className Example: HTML DOM Objects – Area Object – JavaScript (JS) className Example
JavaScript (JS) className Example: HTML DOM Objects – Area Object – JavaScript (JS) className Example
Purpose: – Illustrates the JavaScript syntax for the Area Object className Property .
Prerequistes:
- Install Visual Web Developer 2008
Syntax: AreaObject.className – Allows you to add className to an AreaObject
Restrictions: None
Notes:
- You can build your own library of syntax examples by using same web site over and over and just add new files to it.
Instructions:
- Use Visual Web Developer 2008
- Create new web site;
- Click File/New Web Site
- Select ASP.NET Website Template
- Select C-Sharp for hrefuage
- name of Web Site could be JavaScript_Syntax.
- Add New folder named “HTMLDOMObjects”
- Right-click project name in solution explorer;
- add new folder;
- name of folder should be: HTMLDOMObjects
- Add New subfolder to “HTMLDOMObjects” folder named “DOMArea”
- Right-click folder named “HTMLDOMObjects” in solution explorer;
- add new folder;
- name of folder should be: DOMArea
- Add New subfolder to “DOMArea” subfolder named “StandardProperties”
- Right-click subfolder named “DOMArea” in solution explorer;
- add new folder;
- name of folder should be: StandardProperties
- Add HTML Page Named className to StandardProperties subfolder
- Right-click StandardProperties subfolder;
- add new item;
- Select HTML Page
- HTML Page name should be className
- Click on copy code in code below to copy code into HTML Page className.htm
- Right-click on HTML page className.htm and select view in browser
< !DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>IdealProgrammer.com: className </title>
<!--
***************************************************
* This example is from http://idealprogrammer.com *
***************************************************
-->
<style type="text/css" id="myStyle" >
.myButtons
{
font-size:large;
}
.myButton2
{
font-size:xx-small;
}
.myButton3
{
background-color:#d0e4fe;
}
</style>
</head>
<body>
<input id="Button1" type="button" class="myButtons" value="button" /><br /><br />
<input id="Button2" type="button" class="myButton2" value="button" /><br /><br />
<input id="Button3" type="button" class="myButton3" value="button" /><br /><br />
<script type="text/javascript">
//*****************************************************
// DOM Objects
//*****************************************************
//*****************************************************
// *** Area Object - Standard Properties ***
//*****************************************************
//*****************************************************
// className
//*****************************************************
// SYNTAX:
// object.className=name Allows you to retrieve or assign className
// Two ways to retrieve className
// 1. GetElementsByTagName
myObject=document.getElementsByTagName('input')[0];
document.write("Using getElementsByTagName: " + myObject.className);
document.write("<br />");
// 2. GetElementById
document.write("Using getElementById: ");
document.write(document.getElementById('Button1').className);
// Two ways to assign className
// 1. GetElementById
document.getElementById('Button2').className = "myButton2"
// 2. GetElementsByTagName
myThirdButton = document.getElementsByTagName('input')[2];
myThirdButton.className = "myButton3";
</script>
</body>
</html> |
