Javascript实现web表格宽度拖动(分固定宽度和不固定宽度)

sbpya · 发表于 2013-2-7 14:30:55

<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script>
var dragenable=false;
var x;
var y;
var w;
var h;
var obj;
function init() {
x=event.clientX+document.body.scrollLeft;
obj=event.srcElement;
w=event.srcElement.offsetWidth;
obj.setCapture();
if(x>event.srcElement.offsetLeft+w-5 && x<event.srcElement.offsetLeft+w) {dragenable=true;obj.style.cursor='e-resize';}
}
function drag() {
if(event.clientX+document.body.scrollLeft>event.srcElement.offsetLeft+event.srcElement.offsetWidth-5 && event.clientX+document.body.scrollLeft<event.srcElement.offsetLeft+event.srcElement.offsetWidth) {event.srcElement.style.cursor='e-resize';}
else event.srcElement.style.cursor='default';
if(dragenable==true) {
if(event.clientX+document.body.scrollLeft-x+w>0) {
var i=obj.cellIndex;
var j;
for(j=0;j<obj.parentNode.parentNode.rows.length;j++) {
  obj.parentNode.parentNode.rows[j].cells[i].width=event.clientX+document.body.scrollLeft-x+w;
  }
}
else {
  var i=obj.cellIndex;
  var j;
  for(j=0;j<obj.parentNode.parentNode.rows.length;j++) {
   obj.parentNode.parentNode.rows[j].cells[i].width=1;
   }
  }
}
}
function end() {
dragenable=false;
obj.releaseCapture();
obj.style.cursor='default';
}
</script>
</head>
<body bgcolor="#FFFFFF" text="#000000" leftmargin=0 topmargin=0>
表格宽度未设定或表格宽度白分比显示
<br>
<table width="40%" border="1" cellpadding="0" cellspacing="2" onmousedown=init() onmouseup=end() onmousemove=drag() id=table1 style="table-layout:fixed">
<tr>
    <td height="18" align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
</tr>
<tr>
    <td height="18" align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
</tr>
<tr>
    <td height="18" align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
</tr>
<tr>
    <td height="18" align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
</tr>
<tr>
    <td height="18" align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
</tr>
<tr>
    <td height="18" align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
</tr>
<tr>
    <td height="18" align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
</tr>
</table>
<br>
表格宽度设定了<br>
<table border="1" cellpadding="0" cellspacing="2" onmousedown=init() onmousemove=drag() onmouseup=end() id=table2 style="table-layout:fixed" width="500">
<tr>
    <td width="100" height="18" align="top">dffdksdlkfslfkldka;lsdfksd;lkfd;</td>
    <td width="100" align="top">&nbsp;</td>
    <td width="100" align="top">&nbsp;</td>
    <td width="100" align="top">&nbsp;</td>
    <td width="100" align="top">&nbsp;</td>
</tr>
<tr>
    <td height="18" align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
</tr>
<tr>
    <td height="18" align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
</tr>
<tr>
    <td height="18" align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
</tr>
<tr>
    <td height="18" align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
</tr>
<tr>
    <td height="18" align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
</tr>
<tr>
    <td height="18" align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
    <td align="top">&nbsp;</td>
</tr>
</table>

</body>
</html>

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Javascript实现web表格宽度拖动(分固定宽度和不固定宽度)

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