Yahoo! Developer Network Home - Help

YUI Library Examples: Button Control: Submit Buttons

Button Control: Submit Buttons

This example demonstrates different ways to create a Button that functions like an HTML submit button (<input type="submit"/> and <button type="submit"/>).

View example in new window.

Info
Submit Buttons
From Markup
From JavaScript

Creating Submit Buttons

A Submit Button can be instantiated three different ways:

Using an existing <input type="submit"/> or <button type="submit"/> element

A Submit Button can be created using an existing <input type="submit"/> or <button type="submit"/> element as a source element, the attributes of which are captured and used for the creation of a new element that replaces the source element inline.

1<input id="submitbutton1" type="submit" name="submitfield1" value="Submit Form"> 
2<button id="submitbutton2" type="submit" name="submitfield2" value="submitfield2value"> 
3    Submit Form 
4</button> 
view plain | print | ?

Pass the id of the source element as the first argument to the Button's constructor. Additional configuration attributes for a Button can be set at instantiation time by specifying them in an object literal that is passed as the second argument to the Button's constructor. Note: the value of configuration attributes passed to the Button constructor will trump those of the corresponding HTML attributes of the original source element.

1// Create a Button using an existing <input> element as a data source 
2 
3var oSubmitButton1 = new YAHOO.widget.Button("submitbutton1", { value: "submitbutton1value" }); 
4 
5// Create a Button using an existing <button> element as a data source 
6 
7var oSubmitButton2 = new YAHOO.widget.Button("submitbutton2"); 
view plain | print | ?

Using pre-defined Button Control HTML

A Submit Button can also be instantiated using pre-defined Button Control HTML: An element with a class of "yui-button" and "yui-submit-button" containing a element with a class of "first-child" containing either a <input type="submit"/> or <button type="button"/> element:

1<span id="submitbutton3" class="yui-button yui-submit-button"> 
2    <span class="first-child"> 
3        <input type="submit" name="submitfield3" value="Submit Form"> 
4    </span> 
5</span> 
6<span id="submitbutton4" class="yui-button yui-submit-button"> 
7    <span class="first-child"> 
8        <button type="button" name="submitfield4">Submit Form</button> 
9    </span> 
10</span> 
view plain | print | ?

To instantiate a Submit Button using the Button Control HTML, pass the id of the Button's root element (the element with the classes "yui-button" and "yui-submit-button" applied) as the first argument to constructor and any additional configuration attributes as the second argument via an object literal.

1var oSubmitButton3 = new YAHOO.widget.Button("submitbutton3", { value: "submitbutton3value" }); 
2 
3var oSubmitButton4 = new YAHOO.widget.Button("submitbutton4", { type: "submit", value:  "submitbutton4value" });         
view plain | print | ?

Using no existing HTML

To build a Submit Button without any existing HTML, pass a set of configuration attributes as a single argument to the constructor using an object literal.

1var oSubmitButton5 = new YAHOO.widget.Button({  
2                                type: "submit",  
3                                label: "Submit Form",  
4                                id: "submitbutton5",  
5                                name: "submitbutton5",  
6                                value: "submitbutton5value",  
7                                container: "submitbuttonsfromjavascript" }); 
view plain | print | ?

In most cases, it is necessary to specify the button's id, type, label and container (the HTML element that the button should be appended to once created). If an id is not specified for the button, one will be generated using the generateId method of the Dom utility. Similarly, if the "type" attribute is omitted, the default type of "button" will be applied.

YUI Logger Output:

Logger Console

INFO657ms (+0) 4:39:25 AM:
Button  submitbutton4
Initialization completed.
INFO657ms (+0) 4:39:25 AM:
Button  submitbutton4
Setting attribute "name" using source element's attribute value of "submitfield4"
INFO657ms (+0) 4:39:25 AM:
Button  submitbutton4
Building the button using an existing HTML element as a source element.
INFO657ms (+2) 4:39:25 AM:
Button  submitbutton3
Initialization completed.
INFO655ms (+0) 4:39:25 AM:
Button  submitbutton3
Setting attribute "name" using source element's attribute value of "submitfield3"
INFO655ms (+0) 4:39:25 AM:
Button  submitbutton3
Setting attribute "type" using source element's attribute value of "submit"
INFO655ms (+0) 4:39:25 AM:
Button  submitbutton3
Building the button using an existing HTML element as a source element.
INFO655ms (+0) 4:39:25 AM:
Button  submitbutton2
Initialization completed.
INFO655ms (+1) 4:39:25 AM:
Button  submitbutton2
Source element could not be used as is.  Creating a new HTML element for the button.
INFO654ms (+0) 4:39:25 AM:
Button  submitbutton2
Setting attribute "value" using source element's attribute value of "submitfield2value"
INFO654ms (+0) 4:39:25 AM:
Button  submitbutton2
Setting attribute "name" using source element's attribute value of "submitfield2"
INFO654ms (+0) 4:39:25 AM:
Button  submitbutton2
Setting attribute "type" using source element's attribute value of "submit"
INFO654ms (+0) 4:39:25 AM:
Button  submitbutton2
Building the button using an existing HTML element as a source element.
INFO654ms (+1) 4:39:25 AM:
Button  submitbutton1
Initialization completed.
INFO653ms (+0) 4:39:25 AM:
Button  submitbutton1
Source element could not be used as is.  Creating a new HTML element for the button.
INFO653ms (+0) 4:39:25 AM:
Button  submitbutton1
Setting attribute "name" using source element's attribute value of "submitfield1"
INFO653ms (+0) 4:39:25 AM:
Button  submitbutton1
Setting attribute "type" using source element's attribute value of "submit"
INFO653ms (+35) 4:39:25 AM:
Button  submitbutton1
Building the button using an existing HTML element as a source element.
INFO618ms (+2) 4:39:25 AM:
Button  submitbutton5
Initialization completed.
INFO616ms (+616) 4:39:25 AM:
Button  submitbutton5
No source HTML element.  Building the button using the set of configuration attributes.
INFO0ms (+0) 4:39:24 AM:
global
Logger initialized

Note: You are viewing this example in debug mode with logging enabled. This can significantly slow performance.

Reload with logging
and debugging disabled.

More Button Control Resources:

Copyright © 2008 Yahoo! Inc. All rights reserved.

Privacy Policy - Terms of Service - Copyright Policy - Job Openings