drop | ondrop event (Windows)

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Fires on the target object when the mouse button is released during a drag-and-drop operation.

Syntax

HTML Attribute	<element ondrop = "handler(event)">
Event Property	object.ondrop = handler;
addEventListener Method	object.addEventListener("drop", handler, useCapture)

Event information

Synchronous	No
Bubbles	No
Cancelable	No

Event handler parameters

pEvtObj [in]: Type: IHTMLEventObj

Standards information

There are no standards that apply here.

Remarks

The ondrop event fires before the ondragleave and ondragend events.

When scripting custom functionality, use the returnValue property to disable the default action.

You must cancel the default action for ondragenter and ondragover in order for ondrop to fire. In the case of a div, the default action is not to drop. This can be contrasted with the case of an input type=text element, where the default action is to drop. In order to allow a drag-and-drop action on a div, you must cancel the default action by specifying window.event.returnValue=false in both the ondragenter and ondragover event handlers. Only then will ondrop fire.

Calls the associated event handler.

To invoke this event, do one of the following:

Drag the selection over a valid drop target and release the mouse.

Examples

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 type="text/javascript">
// 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;  
  var 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>

drop | ondrop event