GetElementsByName Example JavaScript (JS): HTML DOM Objects – Document Object Methods – GetElementsByName Example JavaScript (JS)

GetElementsByName Example JavaScript (JS): HTML DOM Objects – Document Object Methods – GetElementsByName Example JavaScript (JS)

Purpose: – Illustrates the for the .

View Other HTML DOM Document Objects

Prerequistes:

Syntax: getElementsByName(“elementName”) – Provides access to a collection of objects with the specified name

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:

  1. Use Visual Web Developer 2008
  2. 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.
  3. Folder

  4. Add New folder named “HTMLDOMObjects”
    • Right-click project name in solution explorer;
    • add new folder;
    • name of folder should be: HTMLDOMObjects
  5. 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
  6. Add HTML Page Named GetElementsByName to DocumentObjectMethods subfolder
    • Right-click DocumentObjectMethods subfolder;
    • add new item;
    • Select HTML Page
    • HTML Page name should be GetElementsByName
  7. Click on copy code in code below to copy code into HTML Page GetElementsByName.htm
  8. Right-click on HTML page GetElementsByName.htm and select view in browser
  9. < !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: getElementsByName() </title>
        <!-- 
        ***************************************************
        * This example is from http://idealprogrammer.com *
        ***************************************************
        -->
     
        <script type="text/javascript">
            //*****************************************************
            // DOM Document
            //*****************************************************
     
     
            //*****************************************************
            //    ***    Document Object Methods   ***
            //*****************************************************
     
            //*****************************************************
            // getElementsByName()
            //*****************************************************
     
            //    SYNTAX:
            //    getElementsByName("name") - Provides access to a 
            //    collection of objects with the specified name
     
            function getText(elementName) 
            {
                var arr = new Array();
                arr = document.getElementsByName(elementName);
                var str = "total elements with name \"textinput\" = " + arr.length + "<br />";
                for (var i = 0; i < arr.length; i++) 
                {
                    var myElement = document.getElementsByName(elementName).item(i);
                    str+= myElement.id + " =  " + myElement.value + "<br />";
                }
                var AnotherDoc = document.open("text/html", "replace");
                AnotherDoc.write(str);
                AnotherDoc.close()
            }
     
     
    </script>
       </head>
      <body>
       Text1: <input id="Text1" name="textinput" type="text" value="This" /><br />
       Text2: <input id="Text2" name="textinput" type="text" value="is" /><br />    
       Text3: <input id="Text3" name="textinput" type="text" value="cool" /><br />    
       <input id="Button1" type="button" value="submit" onclick="getText('textinput')" />
     
     
     
      </body>
    </html>