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How to move table rows around using drag and drop

Drag and Drop

How to move table rows around using drag and drop

by  BillyRayPreachersSon  Posted    (Edited  )
This code will enable you to move table rows around using drag-and-drop functionality. It only works in IE.

The image in the left-hand cell should be used to initiate the dragging operation. The drop position is highlighted as you drag the row around.

Code: 
<html>
<head>
	<style type="text/css">
		tr, tr td {
			border: 1px #999999 solid;
			border-bottom: 2px #999999 solid;
			background-color: #FFFFFF;
		}

		tr.underline, tr.underline td {
			border-bottom: 2px #000000 solid;
			background-color: #CCCCCC;
		}
	</style>
	<script type="text/javascript">
	<!--
		var draggingRow = false;
		var sourceRow = null;

		function startedDragging() {
			draggingRow = true;
			sourceRow = event.srcElement.parentNode.parentNode;
		}

		function dragEnter() {
			if (draggingRow) window.event.returnValue = false;
		}

		function dragOver() {
			if (draggingRow) {
				var targetRow = event.srcElement;
				while (targetRow.parentNode != null && targetRow.tagName && targetRow.tagName.toLowerCase() != 'tr') targetRow = targetRow.parentNode;
				targetRow.className = 'underline';
				window.event.returnValue = false;
			}
		}

		function dragLeave() {
			if (draggingRow) {
				var targetRow = event.srcElement;
				while (targetRow.parentNode != null && targetRow.tagName && targetRow.tagName.toLowerCase() != 'tr') targetRow = targetRow.parentNode;
				targetRow.className = '';
			}
		}

		function dropped() {
			if (draggingRow) {
				targetRow = event.srcElement;
				while (targetRow.parentNode != null && targetRow.tagName && targetRow.tagName.toLowerCase() != 'tr') targetRow = targetRow.parentNode;
				targetRow.className = '';
				sourceRow.swapNode(targetRow);
				draggingRow = false;
			}
		}

		var iconForDragging = '#define icon_width 4\n#define icon_height 4\nstatic char icon_bits[] = { 0x05, 0x0A, 0x05, 0x0A };';
	//-->
	</script>
</head>
<body ondrop="dropped();">
	<table id="dragDropTable" border="0" cellpadding="2" cellspacing="0">
		<thead></thead>
		<tbody>
			<tr ondragenter="dragEnter();" ondragover="dragOver();" ondragleave="dragLeave();">
				<td><img src="javascript:iconForDragging;" width="16" height="16" ondragstart="startedDragging();"></td>
				<td>Row 0, Cell 1</td>
				<td>Row 0, Cell 2</td>
				<td>Row 0, Cell 3</td>
			</tr>
			<tr ondragenter="dragEnter();" ondragover="dragOver();" ondragleave="dragLeave();" ondrop="dropped();">
				<td><img src="javascript:iconForDragging;" width="16" height="16" ondragstart="startedDragging();"></td>
				<td>Row 1, Cell 1</td>
				<td>Row 1, Cell 2</td>
				<td>Row 1, Cell 3</td>
			</tr>
			<tr ondragenter="dragEnter();" ondragover="dragOver();" ondragleave="dragLeave();" ondrop="dropped();">
				<td><img src="javascript:iconForDragging;" width="16" height="16" ondragstart="startedDragging();"></td>
				<td>Row 2, Cell 1</td>
				<td>Row 2, Cell 2</td>
				<td>Row 2, Cell 3</td>
			</tr>
		</tbody>
		<tfoot></tfoot>
	</table>
</body>
</html>

Enjoy! ;o)

Dan


[link http://www.coedit.co.uk/][color #00486F]Coedit Limited[/color][/link][color #000000] - Delivering standards compliant, accessible web solutions[/color]

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http://www.codecouch.com/dan/[/tt]
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