GetElementById Example JavaScript (JS): HTML DOM Objects – Document Object Methods – GetElementById Example JavaScript (JS)
GetElementById Example JavaScript (JS): HTML DOM Objects – Document Object Methods – GetElementById Example JavaScript (JS)
Purpose: – Illustrates the JavaScript syntax for the GetElementById Method .
Prerequistes:
- Install Visual Web Developer 2008
Syntax: getElementById(“objectid”) – Allows you to access the first object with the specified id
Restrictions: Does not work in Firefox
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 Language
- 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 “DocumentObjectMethods”
- Right-click folder named “HTMLDOMObjects” in solution explorer;
- add new folder;
- name of folder should be: DocumentObjectMethods
- Add HTML Page Named GetElementById to DocumentObjectMethods subfolder
- Right-click DocumentObjectMethods subfolder;
- add new item;
- Select HTML Page
- HTML Page name should be GetElementById
- Click on copy code in code below to copy code into HTML Page GetElementById.htm
- Right-click on HTML page GetElementById.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: getElementById() </title>
<!--
***************************************************
* This example is from http://idealprogrammer.com *
***************************************************
-->
<script type="text/javascript">
//*****************************************************
// DOM Document
//*****************************************************
//*****************************************************
// *** Document Object Methods ***
//*****************************************************
//*****************************************************
// getElementById()
//*****************************************************
// SYNTAX:
// getElementById() Allows you to access the first object with the specified id
//
function retrieveText() {
var x = document.getElementById("myDiv")
TextArea1.value = x.innerHTML
}
</script>
</head>
<body>
<div id="myDiv" onclick="retrieveText()">Click on this text to see it magically appear in textbox</div>
<br /> <br />
<textarea id="TextArea1" cols="35" rows="3"></textarea>
</body>
</html> |
