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博客园 - davidullua

Google chrome的离线安装版 百度进军B2C行业 File Comparer - To compare two files and check whether they have the same content No size set for variable length data type: String to create table if table do not exist -- to backup and restore table in oracle Gmail邀请 to call Session_End() event when user closed Browser When Session_End() and Session_Start() Fires about Ora-03114 disable asp.net connection pool(pooling) Oracle FAQ: 未在本地计算机上注册"OraOLEDB.Oracle"提供程序 (The 'OraOLEDB.Oracle' provider is not registered on the local machine) solution - davidullua ora-00054 , alter system kill session 'id,serial#' Change Path of C:\Documents and Settings - davidullua About FormsAuthentication.RedirectFromLoginPage(string username, bool createPersistentCookie) Send email by jmail or CDO according to configuration C#中调用控件的事件 [导入]C#向Sql Server中插入记录时单引号的处理 [导入]C#使用CDO发送邮件 [导入]使用jmail组件发送电子邮件(C#) [导入]C#中使用反射显示程序集的所有类型和属性 [导入]使用Oracle Developer Tools For Visual Studio .NET
Response.WriteFile()下载文件,打开对话框出现两次 - davidullua - 博客园
davidullua · 2005-09-24 · via 博客园 - davidullua

以如下的代码下载文件到客户端,客户点"打开",需要点两次
     HttpContext.Current.Response.Clear();

     //     //当要下载的文件名是中文时,需加上HttpUtility.UrlEncode
     //     HttpContext.Current.Response.ClearHeaders() ;
     //     HttpContext.Current.Response.ClearContent() ;
     HttpContext.Current.Response.AddHeader("Content-Disposition","attachment;filename=" + HttpUtility.UrlEncode(fi.Name));
     HttpContext.Current.Response.AddHeader("Content-Length",fi.Length.ToString());
     HttpContext.Current.Response.ContentType="application/octet-stream";
     HttpContext.Current.Response.WriteFile(fi.FullName,0,fi.Length);
     HttpContext.Current.Response.Flush();

解决方法,客户端设置文件类型:
1.打开我的电脑
2.工具=>文件夹选项
3.文件类型
4.选中一个文件类型,点"高级",取消勾选"下载后确认打开"
这样对于选定的文件类型,就不会打开两次了。

reference:
http://support.microsoft.com/default.aspx?scid=kb;en-us;303475