File.Delete无法删除文件，因为它正在被另一个进程使用

Question

I'm getting error when I'm overwriting the file. And if it is still working can't find to way for close file. Can someone help me please ?

        if (System.IO.File.Exists(Server.MapPath("/html/" + htmlname)))
        {
            System.IO.File.Delete(Server.MapPath("/html/" + htmlname));

            System.IO.File.WriteAllText(Server.MapPath("/html/" + htmlname), mailbody);

        }
        else
        {
            System.IO.File.WriteAllText(Server.MapPath("/html/" + htmlname), mailbody);
        }

Answer 1

Taken from msdn.com which is saying that : "The specified file is in use. -or- There is an open handle on the file, and the operating system is Windows XP or earlier. This open handle can result from enumerating directories and files. For more information, see How to: Enumerate Directories and Files."

take a look a this : http://msdn.microsoft.com/en-us/library/system.io.file.delete.aspx

Also doing some search on your own will prove to be efficient on the long run.

Best regards.