<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
#carTable{width:100%;}
td{text-align:center;}
</style>
</head>
<body>
<table id="carTable" border="1" cellspacing="0" cellpadding="0">
<thead>
<tr>
<th>header</th>
<th>header</th>
<th>header</th>
<th>header</th>
<th>header</th>
</tr>
</thead>
<tbody>
<tr>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
</tr>
</tbody>
</table>
<script>
var tTD; //用來存儲當前更改寬度的Table Cell,避免快速移動鼠標的問題
var table = document.getElementById("carTable");
for (j = 0; j < table.rows[0].cells.length; j++) {
table.rows[0].cells[j].onmousedown = function() {
//記錄單元格
tTD = this;
if (event.offsetX > tTD.offsetWidth - 10) {
tTD.mouseDown = true;
tTD.oldX = event.x;
tTD.oldWidth = tTD.offsetWidth;
}
//記錄Table寬度
//table = tTD; while (table.tagName != ‘TABLE') table = table.parentElement;
//tTD.tableWidth = table.offsetWidth;
};
table.rows[0].cells[j].onmouseup = function() {
//結束寬度調整
if (tTD == undefined) tTD = this;
tTD.mouseDown = false;
tTD.style.cursor = 'default';
};
table.rows[0].cells[j].onmousemove = function() {
//更改鼠標樣式
if (event.offsetX > this.offsetWidth - 10)
this.style.cursor = 'col-resize';
else
this.style.cursor = 'default';
//取出暫存的Table Cell
if (tTD == undefined) tTD = this;
//調整寬度
if (tTD.mouseDown != null && tTD.mouseDown == true) {
tTD.style.cursor = 'default';
if (tTD.oldWidth + (event.x - tTD.oldX) > 0)
tTD.width = tTD.oldWidth + (event.x - tTD.oldX);
//調整列寬
tTD.style.width = tTD.width;
tTD.style.cursor = 'col-resize';
//調整該列中的每個Cell
table = tTD;
while (table.tagName != 'TABLE') table = table.parentElement;
for (j = 0; j < table.rows.length; j++) {
table.rows[j].cells[tTD.cellIndex].width = tTD.width;
}
//調整整個表
//table.width = tTD.tableWidth + (tTD.offsetWidth – tTD.oldWidth);
//table.style.width = table.width;
}
};
}
</script>
</body>
</html>
