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.
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.
Sets or retrieves the y-coordinate, in pixels, of the mouse pointer's position relative to a relatively positioned parent element.
Remarks
The 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 setData method of the dataTransfer object to provide information about data being transferred. Source events include ondragstart, ondrag, and ondragend.
When dragging anything other than an img object, some text to be dragged must be selected.
Examples
This example uses event bubbling to handle the ondragstart event at the body level.
<BODY ondragstart="alert(event.srcElement.tagName)">
<INPUT TYPE=text VALUE="Select and drag this text">
<SPAN>Select and drag this text</SPAN>
<TEXTAREA>Select and drag this text</TEXTAREA>
</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.
This example shows the order of event firing for drag-and-drop events.
<HEAD>
<SCRIPT>
function ShowResults(){
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.
