ondragstart event

Artikkeli
05/02/2017

Fires on the source object when the user starts to drag a text selection or selected object.

Syntax

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

Event information

Synchronous	No
Bubbles	Yes
Cancelable	Yes

Event handler parameters

pEvtObj [in]
Type: IHTMLEventObj

Standards information

There are no standards that apply here.

Remarks

The HTMLAnchorEvents2::ondragstart event is the first to fire when the user starts to drag the mouse. It is essential to every drag operation, yet is just one of several source events in the data transfer object model. Source events use the IHTMLDataTransfer::setData method of the dataTransfer object to provide information about data being transferred. Source events include HTMLAnchorEvents2::ondragstart, HTMLAnchorEvents2::ondrag, and HTMLAnchorEvents2::ondragend.

When dragging anything other than an img object, some text to be dragged must be selected.

Calls the associated event handler.

To invoke this event, do one of the following:

Drag the selected text or object.

Jaa