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- Prototype - Short Overview
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- Prototype - Basic Object
- Prototype - Templating
- Prototype - Enumerating
- Prototype - Event Handling
- Prototype - Form Management
- Prototype - JSON Support
- Prototype - AJAX Support
- Prototype - Expressing Ranges
- Prototype - Periodical Execution
- Prototype Useful Resources
- Prototype - Quick Guide
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Prototype - Form.Element activate() Method
This method gives focus to a form control and selects its contents if it is a text input.
This method is just a shortcut for focusing and selecting. Therefore, these are equivalent −
Form.Element.focus('myelement').select(); is equivalent to: $('myelement').activate();
Syntax
formElement.activate();
Return Value
It returns an HTML Element.
Example
Following example will activate the age fields −
<html> <head> <title>Prototype examples</title> <script type = "text/javascript" src = "/javascript/prototype.js"></script> <script> function showResult() { $('age').activate() } </script> </head> <body> <p>Click the button to see the result.</p> <br /> <form id = "example" action = "#" onsubmit = "return false"> <fieldset><legend>User info</legend> <div> <label for = "username">Username:</label> <input name = "username" id = "username" value = "Sai" type = "text"> </div> <div> <label for = "age">Age:</label> <input name = "age" id = "age" value = "23" size="3" type="text"> </div> <div> <label for = "hobbies">Your hobbies :</label> <select name = "hobbies" id = "hobbies" multiple = "multiple"> <option>coding</option> <option>swimming</option> <option>hiking</option> <option>drawing</option> </select> </div> </fieldset> </form> <br /> <input type = "button" value = "Result" onclick = "showResult();"/> </body> </html>
Output
prototype_form_management.htm
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