Fires when the state of the object has changed. dhtml语法 | Inline HTML | <ELEMENT onreadystatechange = "handler" ... >
| All platforms |
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| Event property | object.onreadystatechange = handler | JScript only |
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| object.onreadystatechange = GetRef("handler") | Visual Basic Scripting Edition (VBScript) 5.0 or later only | | Named script |
<SCRIPT FOR =
object EVENT = onreadystatechange>
| Internet Explorer only |
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Event Information | Bubbles | No |
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| Cancels | No |
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| To invoke |
Change the ready state. |
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| Default action |
Signals the ready state of the document. |
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Event Object Properties Although event handlers in the DHTML Object Model do not receive parameters directly, a handler can query an event object for data. available properties | altKey |
Sets or retrieves a value that indicates the state of the ALT key. |
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| altLeft |
Sets or retrieves a value that indicates the state of the left ALT key. |
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| ctrlLeft |
Sets or retrieves the state of the left CTRL key.
|
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| shiftLeft |
Retrieves the state of the left SHIFT key.
|
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| srcElement |
Sets or retrieves the object that fired the event. |
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| type |
Sets or retrieves the event name from the event object. |
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Remarks You can use the readystate property to query the current state of the element when the onreadystatechange event fires. all elements expose an onreadystatechange event. the following objects always fire the event because they load data: applet, document, frame, frameset, iframe, img, link, object, script, and xml elements. other objects will only fire the onreadystatechange event when a dhtml behavior is attached. when working with behaviors, wait for the onreadystatechange event to fire and verify that the readystate property of the element is set to complete to ensure that the behavior is completely downloaded and applied to the element. until the onreadystatechange event fires, if you use any of the behavior-defined members before attaching the behavior to the element, a scripting error can result, indicating that the object does not support that particular property or method.
DHTML代码范例
This example uses the onreadystatechange event to invoke a function when the readyState is complete. document.onreadystatechange=fnStartInit;
function fnStartInit()
{
if (document.readyState=="complete")
{
// Finish initialization.
}
}
是否符合公共标准
There is no public standard that applies to this event.
Applies To |
A,
ACRONYM,
ADDRESS,
APPLET,
AREA,
B,
BASE,
BASEFONT,
BDO,
BGSOUND,
BIG,
BLOCKQUOTE,
BODY,
BR,
BUTTON,
CAPTION,
CENTER,
CITE,
CODE,
COL,
COLGROUP,
COMMENT,
CUSTOM,
DD,
DEL,
DFN,
DIR,
DIV,
DL,
document,
DT,
EM,
EMBED,
FIELDSET,
FONT,
FORM,
HEAD,
hn,
HR,
HTML,
I,
IFRAME,
IMG,
INPUT type=button,
INPUT type=checkbox,
INPUT type=file,
INPUT type=hidden,
INPUT type=image,
INPUT type=password,
INPUT type=radio,
INPUT type=reset,
INPUT type=submit,
INPUT type=text,
INS,
ISINDEX,
KBD,
LABEL,
LEGEND,
LI,
LINK,
LISTING,
MAP,
MARQUEE,
MENU,
namespace,
nextID,
NOBR,
NOFRAMES,
NOSCRIPT,
OBJECT,
OL,
OPTION,
P,
PLAINTEXT,
PRE,
Q,
RT,
RUBY,
S,
SAMP,
SCRIPT,
SELECT,
SMALL,
SPAN,
STRIKE,
STRONG,
STYLE,
SUB,
SUP,
TABLE,
TBODY,
TD,
TEXTAREA,
TFOOT,
TH,
THEAD,
TITLE,
TR,
TT,
U,
UL,
VAR,
XML,
XMP | |
更多语法参考 introduction to data binding, onload
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