ASP. NET-based Ajaxfileupload.js for file asynchronous upload

Source: Internet
Author: User

Front Code:

/* Modify Avatar */    //upload      function _sc () {         $ (". Ckfile"). html (""). CSS ("Color", "#535353");          $ ("#_userImgPath"). Val ("");          var str = $ ("#file"). Val ();          if ($.trim (str) = = "") {             $ (". Ckfile"). HT ML ("Please select File. "). CSS (" Color "," red ");              return false;         }          else {           &NBS P var postfix = str.substring (Str.lastindexof (".") + 1). toUpperCase ();              if (postfix = = "JPG" | | postfix = = "JPEG" | | postfix = = "PNG" | | postfix = = "GIF" | | Postfix = = "BMP") {                 $ (' #showimg '). attr (' src ', ' Images/loadin G.gif '). attr ("title", "Upper Crossing, please later ...");    &nbsP               var path = "Upload/userimg";                  $.ajaxfileupload ({                     URL: '/upload.aspx?path=upload| Userimg&shape=100*100 ',                      Secureuri:false,                      fileelementid: ' file ',      &NB Sp               dataType: ' text ',                      Success:function (msg) {                         if (msg.lastindexof path) = 1) {                   &NB Sp         $ (". Ckfile"). HTML (msg). CSS ("Color", "red");                         &N                   . Bsp     Else {                           &NBS P $ (' #showimg '). attr (' src ', msg). attr ("title", "My Avatar");                            $ ("#_userImgPath") . val (msg);                         }        &NB Sp            }               / });               } else {             &NBSP ;   $ (". Ckfile"). HTML ("file format error. "). CSS (" Color "," red ");                  return false;             }         }         background code: using System;  using System.Collections.Generic;  using System.Linq;  using system.web;  using System.Web.UI;  using System.Web.UI.WebControls;  using SS. Upload;  using WFC. Fenxiao;      namespace Wanfangcheng  {     Public partial class Upload:basepage & nbsp;    {        //File size 1024x768          Private long size = 1024;         //File type          private String type = ". Jpg|. Jpeg|. Png|. Gif|. BMP ";         //Save name          String name = "";         //save path          private string path = @ "Upload/userimg";         //Save size          private string shape = "100*100";        &nbsP protected void Page_Load (object sender, EventArgs e)          {             httpfilecollection files = request.files;              if (Files! = null && files. Count > 0)              {               &NB Sp Name = BaseRole.Instance.UserId.ToString ();                  if (request.querystring["size"]! = null)                  {                     s ize = Convert.ToInt32 (request.querystring["size"]);                         &NB Sp if (request.querystring["path"]! = null)                  {   &nbs P     &NBSP           Path = request.querystring["path"]. ToString (). Trim (). Replace (' | ', '/');                         &NB Sp if (request.querystring["name"]! = null)                  {   &nbs P                 name = request.querystring["Name"]. ToString (). Trim ();                         &NB Sp if (request.querystring["shape"]! = null)                  {   &NB Sp                 shape = request.querystring["shape"]. ToString (). Trim ();                         &NB Sp Uploadmethod (files);             }         }         //<summary> &N bsp;       //upload images         //</summary>         //<param name= "HC" ></param>          public void Uploadmethod (Httpfilecoll Ection hc)          {             Httppostedfile _file = hc[0 ];             //File size              long _size = _file. ContentLength;              if (_size <= 0)              {&nbsp ;                Response.Write ("File error. ");                  Response.End ();                  return;             }              if (size * 1024x768 < _size)    &N Bsp         {                 Response.Write ("File too large, maximum limit is" + Size + "KB. ");                  Response.End ();                  return;             }             //filename    &nbsp ;         string _name = _file. FileName;             //file format              string _tp = System . Io. Path.getextension (_name). ToLower ();              if (type. IndexOf (_TP) = =-1)              {             &NBS P   Response.Write ("file format is incorrect. ");                 Response.End ();                  return;             }             //save path    &nbs P         String _path = HttpContext.Current.Server.MapPath (path) + @ "/" + name + _tp;              Try              {                 int w = Convert.ToInt32 (shape. Split (' * ') [0]);                  int h = convert.toint32 (shape. Split (' * ') [1]);                  Imagehelper.cutforcustom (_file, _path, W, H, 50);                  Response.Write (path + @ "/" + name + _TP);             }              catch (Exception)              {                 Response. Write ("Oops, something went wrong.") ");                  Response.End ();              {        }     }  }  

ASP. NET-based Ajaxfileupload.js for file asynchronous uploads

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