写的htc的数据表格_javascript技巧



作者:xmg (小马哥)
代码如下:






if(document.all){
Event.prototype.__defineGetter__("srcElement",function(){var node=this.target;while(node.nodeType!=1){node=node.parentNode}return node})
Event.prototype.__defineGetter__("x",function(){return this.clientX+2})
Event.prototype.__defineGetter__("y",function(){return this.clientY+2})
}
function $(obj){return document.getElementById(obj)}

	字段一	字段二	字段三	字段四	字段五	字段六	字段七	字段八	字段九

var obj=$("datagrid"),td
var body=document.body
var DragObj=null
var objxy=getxy(obj)
var Dragborder=0
obj.style.cssText="background:#FFF;border-collapse:collapse"
for(var i=0;i for(var j=0;j td=obj.rows[i].cells[j]
if(i==0){
td.className="GridBorder"
td.style.cssText="font-weight:bold"
}else if(j==0){
td.className="GridBorder"
td.style.cssText="width:15px"
}else{
td.innerHTML=""
}
}
}
var focus_img=document.createElement("IMG")
focus_img.src="http://bbs.51js.com/attachment.php?aid=7290&noupdate=yes"
if(typeof(Dline)!="object"){
var Dragline=document.createElement("DIV")
Dragline.id="Dline"
Dragline.style.cssText="width:1px;border-left:1px solid #CCC;display:none;position:absolute"
body.appendChild(Dragline)
}
obj.onclick=function(){
var e=event,tr
var ee=e.srcElement
if(ee.tagName=="INPUT"){
tr=ee.parentNode.parentNode
obj.rows[tr.rowIndex].cells[0].appendChild(focus_img)
}
}
obj.onmousemove=function(){
var e=event,tr
var ee=e.srcElement
if(ee.tagName=="TD"&&ee.parentNode.rowIndex==0&&ee.cellIndex>0){
var a=getxy(ee)
if(event.x<(a[1]+5)||event.x>(a[1]+a[2]-5)){
body.style.cursor="col-resize"
objxy=getxy(obj)
}else{
body.style.cursor="default"
}
}
}
obj.onmousedown=function(){
var e=event
var ee=e.srcElement
var a=getxy(ee)
if(body.style.cursor=="col-resize"){
if(event.x<(a[1]+5))
Dragborder=1
else if(event.x>(a[1]+a[2]-5))
Dragborder=2
else
Dragborder=0
DragObj=ee
$("Dline").style.left=e.x
$("Dline").style.top=objxy[0]
$("Dline").style.height=objxy[3]
$("Dline").style.display=""
}
}
body.onmousemove=function(){
if(DragObj!=null){
$("Dline").style.left=event.x
body.style.cursor="col-resize"
}
}
body.onmouseup=function(){
if(DragObj!=null){
$("Dline").style.display="none"
body.style.cursor="default"
if(Dragborder==2){
var a=getxy(DragObj)
var w=event.x-a[1]
w=w<=0?0:w
DragObj.style.width=w
}
if(Dragborder==1){
var pnode=DragObj.previousSibling
var a=getxy(pnode)
var w=event.x-a[1]
w=w<=0?0:w
pnode.style.width=w
}
DragObj=null
}
}
function getxy(e){
var a=new Array()
var t=e.offsetTop;
var l=e.offsetLeft;
var w=e.offsetWidth;
var h=e.offsetHeight;
while(e=e.offsetParent){
t+=e.offsetTop;
l+=e.offsetLeft;
}
a[0]=t;a[1]=l;a[2]=w;a[3]=h
return a;
}