Dear tien1504,

 

<script runat="server">
void Uploader_FileUploaded(object sender, UploaderEventArgs args)   
{
    string path = "c:\\temp\\" + args.FileName;       

    //check whether same name file is existing
    if (System.IO.File.Exists(path))
    {
        //add your own code here, you can return directly, you can also change file name
    }       
    args.MoveTo(path);
}
</script>

 

Thanks for asking

Eric@cutesoft.net