ondblclick Event | DHTML文档教程 |
Fires when the user double-clicks the object.
dhtml语法
Inline HTML <ELEMENT ondblclick = "handler" ... > All platforms Event property object.ondblclick = handler JScript only object.ondblclick = GetRef("handler") Visual Basic Scripting Edition (VBScript) 5.0 or later only Named script <SCRIPT FOR = object EVENT = ondblclick> Internet Explorer only
Event Information
Bubbles Yes Cancels Yes To invoke Click the left mouse button twice in rapid succession over an object. The user's double-click must occur within the time limit specified by the user's system. Default action Initiates any action that is associated with the event.
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.
altKey Sets or retrieves a value that indicates the state of the ALT key. altLeft Sets or retrieves a value that indicates the state of the left ALT key. cancelBubble Sets or retrieves whether the current event should bubble up the hierarchy of event handlers. clientX Sets or retrieves the x-coordinate of the mouse pointer's position relative to the client area of the window, excluding window decorations and scroll bars. clientY Sets or retrieves the y-coordinate of the mouse pointer's position relative to the client area of the window, excluding window decorations and scroll bars. ctrlKey Sets or retrieves the state of the CTRL key. ctrlLeft Sets or retrieves the state of the left CTRL key. offsetX Sets or retrieves the x-coordinate of the mouse pointer's position relative to the object firing the event. offsetY Sets or retrieves the y-coordinate of the mouse pointer's position relative to the object firing the event. returnValue Sets or retrieves the return value from the event. screenX Retrieves the x-coordinate of the mouse pointer's position relative to the user's screen. screenY Sets or retrieves the y-coordinate of the mouse pointer's position relative to the user's screen. shiftKey Sets or retrieves the state of the SHIFT key. shiftLeft Retrieves the state of the left SHIFT key. srcElement Sets or retrieves the object that fired the event. type Sets or retrieves the event name from the event object. x Sets or retrieves the x-coordinate, in pixels, of the mouse pointer's position relative to a relatively positioned parent element. y Sets or retrieves the y-coordinate, in pixels, of the mouse pointer's position relative to a relatively positioned parent element.
Remarks
The order of events leading to the ondblclick event is onmousedown, onmouseup, onclick, onmouseup, and then ondblclick. actions associated with any of these events are executed when the ondblclick event fires.
DHTML代码范例
This example uses the ondblclick event to add items to a list box when the user double-clicks in the text box.
<HEAD> <SCRIPT> function addItem() { sNewItem = new Option(txtEnter.value) selList.add(sNewItem); } </SCRIPT> </HEAD> <BODY> <P>Enter text and then double-click in the text box to add text to the list box. <INPUT TYPE=text NAME=txtEnter VALUE="Enter_text" ondblclick="addItem()"> <SELECT NAME=selList SIZE=5></SELECT> </BODY>This feature requires Microsoft® Internet Explorer 4.0 or later. Click the following icon to install the latest version. Then reload this page to view the sample.
是否符合公共标准
This event is defined in HTML 4.0
.
Applies To
A, ADDRESS, APPLET, AREA, B, BDO, BIG, BLOCKQUOTE, BODY, BUTTON, CAPTION, CENTER, CITE, CODE, CUSTOM, DD, DFN, DIR, DIV, DL, document, DT, EM, EMBED, FIELDSET, FONT, FORM, hn, HR, I, IMG, INPUT type=button, INPUT type=checkbox, INPUT type=file, INPUT type=image, INPUT type=password, INPUT type=radio, INPUT type=reset, INPUT type=submit, INPUT type=text, KBD, LABEL, LEGEND, LI, LISTING, MAP, MARQUEE, MENU, nextID, NOBR, OBJECT, OL, P, PLAINTEXT, PRE, RT, RUBY, S, SAMP, SELECT, SMALL, SPAN, STRIKE, STRONG, SUB, SUP, TABLE, TBODY, TD, TEXTAREA, TFOOT, TH, THEAD, TR, TT, U, UL, VAR, XMP