摘要：
前言：FileUpload 服务器控件用多了，自己写html控件通过表单上传文件出现了不少问题，当你调试时，发现HttpFileCollection为空时，请检查下面几点：代码： <form method="post" action="../handler/FileUpload.ashx" enctype="multipart/form-data"> <input id="file-uploader" name="file-uploader" type="file&q 阅读全文
摘要：
Although frame is generally not recommended on most of the web pages, iFrame can still be useful in some occasions, especially as an Ajax alternative. One strength of Ajax is that it greatly reduces (... 阅读全文