I found how to change the size .
Icefaces forgot to add 'size' attribute to ace:fileEntry component ,
so we must insert it by using javaScript .
function openFilePanel()
{
// find the component in the document
var nodeList = document.getElementsByTagName("input");
for(var i=0 ; i< nodeList.length;i++)
{
var item = nodeList[i];
if(item.getAttribute("type") == "file")
{ // create and set the 'size' attribute
item.setAttribute("size", "70");
}
}
}
if you are using more then one ace:fileEntry component you must find the 'input' that it create differently.