C # upload file (ii) Saving a file using a binary stream

1.html Code:

<asp:fileupload runat="server" id="uploadfile"/>         <asp:button runat="server" id="btnupload " onclick="btnupload_click " text=" upload "/>

HTML code

2. Background code:

 Public Partial classUpLoadFilesByStream:System.Web.UI.Page {protected voidPage_Load (Objectsender, EventArgs e) { }        /// <summary>        ///Upload/// </summary>        /// <param name= "Sender" ></param>        /// <param name= "E" ></param>        protected voidBtnupload_click (Objectsender, EventArgs e) {            //for the file format and size of the judge, in the previous article has been involved, omitted here.             if( This. Uploadfile.hasfile) {//The Httppostedfile class provides access to individual files that the client has uploadedHttppostedfile HPF = This.                Uploadfile.postedfile; //httppostedfile HPF = request.files[0]; //file name                stringFileName =Path.getfilename (HPF.                FileName); //file size, per byte                intFilecontentlength =HPF.                ContentLength; //Upload Path                stringFilePath = Server.MapPath ("/files/"); //Binary Arrays                byte[] Filebytes =NULL; Filebytes=New byte[Filecontentlength]; //Create a Stream object and point to upload fileStream FileStream =HPF.                InputStream; //reads bytes from the current stream, reads into the byte arrayFileStream.Read (Filebytes,0, filecontentlength); //Full path (road strength + file name)                stringFullPath = FilePath +FileName; //Save to diskSavetodisk (filebytes, FullPath); }        }        /// <summary>        ///Save to disk/// </summary>        /// <param name= "bytes" >byte array</param>        /// <param name= "Savefullpath" >Full path</param>        /// <returns></returns>         Public voidSavetodisk (byte[] Bytes,stringSavefullpath) {            varFullPath =Path.getdirectoryname (Savefullpath); //If you do not have this folder, the new            if(!directory.exists (FullPath))            {directory.createdirectory (FullPath); }            //creates a file that returns a FileStream that provides read/write access to the file specified in path.             using(FileStream stream =file.create (Savefullpath)) {                //writes a byte array to a streamStream. Write (Bytes,0, Bytes.                Length); Stream.            Close (); }        }    }

. CS Code

Test pass!

C # upload file (ii) Saving a file using a binary stream