Asp.net图片上传实现预览效果的简单代码

 asp:FileUpload ID="FileUpload1" runat="server" onpropertychange="show(this.value)"/>
        asp:Image ID="Image1" runat="server"  />

     script type="text/javascript">
    function show(id)
    ...{
        document.getElementById("Image1").src=id;
    }
    /script>

div id="divview" style="filter : progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=image);WIDTH: 166px; HEIGHT: 190px">
!--用于显示图片-->
/div>

asp:FileUpload ID="FileUpload3" runat="server" onpropertychange="show1(this.value)"/>
script type="text/javascript">

function show1(upimg)
...{
 var dd=document.getElementById("divview");
 dd.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src = upimg;
 dd.style.width = 166;
 dd.style.height = 190;
 dd.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").sizingMethod = scale;
}
/script>