Custom the style to make the button full fill the whole component.
<style type="text/css">
.fb1 .textbox-button{
width: 100%;
}
</style>
<input class="easyui-filebox" data-options="cls:'fb1',width:100">
You missunderstand me. I mean totally hide filebox, click image item to make filebox work.
http://jsfiddle.net/5jkew2uf/2/ <img id="imageshow" src="" style="width:100px;height:100px">
<div style="display:none">
<input id="filebox" class="easyui-filebox">
</div>
<script>
$(function () {
$('#imageshow').click(function(){
//here to click filebox's "Choose File" button
})
});
</script>