ButtonElement
Interface
DOM
Button
objects expose the
HTMLButtonElement
HTML5 (or
HTMLButtonElement
HTML 4) interface, which provides properties and methods (beyond the
element object interface they also have available to them by inheritance) for manipulating the layout and presentation of button elements.
Extends
Element
Constructors
Methods
Code
bool checkValidity() #
Not supported for button elements.
bool checkValidity();
Code
void setCustomValidity(String error) #
Not supported for button elements.
void setCustomValidity(String error);
Fields
Code
bool autofocus #
The control should have input focus when the page loads, unless the user overrides it, for example by typing in a different control. Only one form-associated element in a document can have this attribute specified.
bool autofocus;
Code
bool disabled #
The control is disabled, meaning that it does not accept any clicks.
bool disabled;
The form that this button is associated with. If the button is a descendant of a form element, then this attribute is the ID of that form element.
If the button is not a descendant of a form element, then:
-
HTML5 The attribute can be the ID of any form element in the same document.
-
HTML 4 The attribute is null.
final FormElement form;
The URI of a program that processes information submitted by the button. If specified, this attribute overrides the
action
attribute of the
<form>
element that owns this element.
String formAction;
The HTTP method that the browser uses to submit the form. If specified, this attribute overrides the
method
attribute of the
<form>
element that owns this element.
String formMethod;
Indicates that the form is not to be validated when it is submitted. If specified, this attribute overrides the
enctype
attribute of the
<form>
element that owns this element.
bool formNoValidate;
A name or keyword indicating where to display the response that is received after submitting the form. If specified, this attribute overrides the
target
attribute of the
<form>
element that owns this element.
String formTarget;
Code
final NodeList labels #
A list of
<label>
elements that are labels for this button.
final NodeList labels;
The name of the object when submitted with a form.
HTML5 If specified, it must not be the empty string.
String name;
Indicates the behavior of the button. This is an enumerated attribute with the following possible values:
submit
: The button submits the form. This is the default value if the attribute is not specified,
HTML5 or if it is dynamically changed to an empty or invalid value. reset
: The button resets the form. button
: The button does nothing.
String type;
Code
final String validationMessage #
A localized message that describes the validation constraints that the control does not satisfy (if any). This attribute is the empty string if the control is not a candidate for constraint validation (
willValidate is false), or it satisfies its constraints.
final String validationMessage;
The validity states that this button is in.
final ValidityState validity;
The current form control value of the button.
String value;
Code
final bool willValidate #
Indicates whether the button is a candidate for constraint validation. It is false if any conditions bar it from constraint validation.
final bool willValidate;
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