写的防止重复提交的脚本
http://blog.joycode.com/lostinet/archive/2004/09/18/33901.aspx
把这个作为 <-script src=.....js-><-/script-> 的形式Render到每个页面中就可以了。|
如果有PageBase,则在Init的时候用RegisterClientScriptBlock放上去更好。
因为客户没有抱怨过,所以也没有改进过。
function _doPostBack(){};
if(typeof("__doPostBack")=="function")
{
_doPostBack=__doPostBack;
__doPostBack=_doPostBackNew;
}
document.attachEvent("onmousemove",_onmousemove);
var _isPosting=false;
var _divMask=null;
function _onmousemove()
{
if(_divMask)
with(_divMask.runtimeStyle)
{
left=event.clientX+document.body.scrollLeft-4;
top=event.clientY+document.body.scrollTop-4;
}
}
function _makeMask()
{
var div=document.createElement("DIV");
with(div.runtimeStyle)
{
position="absolute";
zIndex=999999;
fontSize="1px";
left=event.clientX+document.body.scrollLeft-4;
top=event.clientY+document.body.scrollTop-4;
width="8px";
height="8px";
cursor="wait";
backgroundColor="gray";
filter="alpha(opacity=10)";
}
try
{
document.body.insertAdjacentElement("BeforeEnd",div);
div.onblur=new Function("this.focus()");
div.focus();
}
catch(x){}
if(_divMask)_divMask.removeNode(true);
_divMask=div;
}
function _doPostBackNew(sender,args)
{
if(_isPosting)
return event.returnValue=!(event.cancelBubble=true);
status="正在更新页面...";
_doPostBack(sender,args);
_isPosting=true;
_makeMask();
}
function _onformsubmit()
{
if(_isPosting)
return event.returnValue=!(event.cancelBubble=true);
_isPosting=true;
_makeMask();
}
new function _attachForms()
{
with(new Enumerator(document.forms))
for(;!atEnd();moveNext())
{
item().attachEvent("onsubmit",_onformsubmit);
var div=document.createElement("div");
div.runtimeStyle.width="0px";
div.runtimeStyle.hight="0px";
div.runtimeStyle.overflow="hidden";
div.runtimeStyle.position="absolute";
item(0).insertAdjacentElement("afterbegin",div);
div.innerHTML="<INPUT
TYPE=Submit name='webformpatchsubmitelement' onclick='return
event.returnValue=false' id='webformpatchsubmitelement'
value='webformpatchsubmitelement'/>";
}
}