Fires on the source object continuously during a drag operation. Syntax Inline HTML | <ELEMENT ondrag = "handler" ... >
| All platforms |
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Event property | object.ondrag = handler | JScript only |
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object.ondrag = GetRef("handler") | Visual Basic Scripting Edition (VBScript) 5.0 or later only | Named script |
<SCRIPT FOR =
object EVENT = ondrag>
| Internet Explorer only |
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Event Information Bubbles | Yes |
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Cancels | Yes |
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To invoke | - Drag a text selection or object within the browser.
- Drag a text selection or object to another browser.
- Drag a text selection or object to a drop target in another application.
- Drag a text selection or object to the system desktop.
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Default action |
Calls the associated event handler if there is one. |
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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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cancelBubble |
Sets or retrieves whether the current event should bubble up the hierarchy of event handlers. |
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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. |
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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. |
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ctrlKey |
Sets or retrieves the state of the CTRL key. |
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ctrlLeft |
Sets or retrieves the state of the left CTRL key.
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dataTransfer |
Provides access to predefined clipboard formats for use in drag-and-drop operations. |
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offsetX |
Sets or retrieves the x-coordinate of the mouse pointer's position relative to the object firing the event. |
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offsetY |
Sets or retrieves the y-coordinate of the mouse pointer's position relative to the object firing the event. |
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returnValue |
Sets or retrieves the return value from the event. |
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screenX |
Retrieves the x-coordinate of the mouse pointer's position relative to the user's screen. |
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screenY |
Sets or retrieves the y-coordinate of the mouse pointer's position relative to the user's screen. |
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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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x |
Sets or retrieves the x-coordinate, in pixels, of the mouse pointer's position relative to a relatively positioned parent element. |
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y |
Sets or retrieves the y-coordinate, in pixels, of the mouse pointer's position relative to a relatively positioned parent element. |
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Remarks This event fires on the source object after the ondragstart event. The ondrag event fires throughout the drag operation, whether the selection being dragged is over the drag source, a valid target, or an invalid target.
Example
This example shows when and where each event fires during a drag-and-drop operation by listing each event and the name of the object firing it in a list box. <HEAD>
<SCRIPT>
var oNewOption;
// Code for dynamically adding options to a select.
function ShowResults()
{ // Information about the events
// and what object fired them.
arg = event.type + " fired by " + event.srcElement.id;
oNewOption = new Option();
oNewOption.text = arg;
oResults.add(oNewOption,0);
}
</SCRIPT>
</HEAD>
<BODY>
<P>Source events are wired up to this text box.</P>
<INPUT ID=txtDragOrigin VALUE="Text to Drag"
ondragstart="ShowResults()"
ondrag="ShowResults()"
ondragend="ShowResults()"
>
<P>Target events are bound to this text box.</P>
<INPUT ID=txtDragDestination VALUE="Drag Destination"
ondragenter="ShowResults()"
ondragover="ShowResults()"
ondragleave="ShowResults()"
ondrop="ShowResults()"
>
<SELECT ID=oResults SIZE=30>
<OPTION>List of Events Fired
</SELECT>
</BODY> This feature requires Microsoft® Internet Explorer 5 or later. Click the following icon to install the latest version. Then reload this page to view the sample.
Standards Information
There is no public standard that applies to this event.
Applies To |
A,
ACRONYM,
ADDRESS,
AREA,
B,
BDO,
BIG,
BLOCKQUOTE,
BODY,
CAPTION,
CENTER,
CITE,
CODE,
CUSTOM,
DD,
DEL,
DFN,
DIR,
DIV,
DL,
document,
DT,
EM,
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,
LI,
LISTING,
MAP,
MARQUEE,
MENU,
NOBR,
OBJECT,
OL,
P,
PLAINTEXT,
PRE,
Q,
S,
SAMP,
SMALL,
SPAN,
STRIKE,
STRONG,
SUB,
SUP,
TABLE,
TBODY,
TD,
TEXTAREA,
TR,
TT,
U,
UL,
VAR,
XMP | |
See Also About DHTML Data Transfer, ondragstart
|