c# - Uploading Document to App_Data -

-

i've got working code upload document app_data file, need able differentiate files uploaded if have same name. want modifying file name so: id" "filename

i've had few attempts include in object thats passed controller can't find stored anywhere (i presume gets stripped out when being passed?).

here current code:

var files = $('#txtuploadfile')[0].files; if (files.length > 0) {     if (window.formdata !== undefined) {         var data = new formdata();         (var x = 0; x < files.length; x++) {             data.append("file" + x, files[x]);         }         // data.uploadname = task.id + " " + files[0].name;           // file.filename = id + " " + file.filename;         $.ajax({             type: "post",             url: '../document/uploadfiles/',             contenttype: false,             processdata: false,             //data: {'id': (nextref + 1), 'filelocation': files[0].name }, // doesn't work             data: data, // works without other variables             datatype: "json",             success: function (result) {                 //alert(result);             },             error: function (xhr, status, p3, p4) {                 var err = "error " + " " + status + " " + p3 + " " + p4;                 if (xhr.responsetext && xhr.responsetext[0] == "{")                     err = json.parse(xhr.responsetext).message;                 alert(log(err));             }         });     } else {         alert("this browser doesn't support html5 file uploads!");     } }    [httppost] public jsonresult uploadfiles()//string id, string filelocation) {     try     {         foreach (string file in request.files)         {             var hpf = request.files[file] httppostedfilebase;             if (hpf.contentlength == 0)                 continue;             var filecontent = request.files[file];             if (filecontent != null && filecontent.contentlength > 0)             {                 // stream                 var stream = filecontent.inputstream;                 // , optionally write file disk                 var filename = path.getfilename(file);                 var path = path.combine(server.mappath("~/app_data/"), path.getfilename(hpf.filename));                  // save file                 hpf.saveas(path);              }         }     }     catch (exception)     {         response.statuscode = (int)httpstatuscode.badrequest;         return this.json("upload failed");     }      return this.json("file uploaded successfully"); }

your html should be

<div><input type="file" name="uploadfile" id="fileupload" class="fileupload"  /> </div>

your ajax call should 

 $.ajax({            type: "post",            url: '/mycontroller/uploadfiles?id=' + myid,            contenttype: false,            processdata: false,            data: data,            success: function(result) {                console.log(result);            },            error: function (xhr, status, p3, p4){              });

//and controller 

 [httppost]  public jsonresult uploadfiles(string id)    {             // whatever want id  }

happy coding...


Comments

Post a Comment

Popular posts from this blog

python - No exponential form of the z-axis in matplotlib-3D-plots -

-
Image
i have similar problem described in how prevent numbers being changed exponential form in python matplotlib figure : i don't want (in special case) weird scientific formatting of axis. problem different have problem @ z -axis. 2-d plots can use ax.get_yaxis().get_major_formatter().set_useoffset(false) . , there no function ax.get_zaxis() what use format z -axis same way? edit: example: from mpl_toolkits.mplot3d import axes3d import numpy np import sys import matplotlib import matplotlib.pyplot pyplot def func(xi, ti): res = 10e3 + np.cos(ti) * np.sin(xi) return res if __name__ == '__main__': timespacing = 20 timestart = 0 timeend = 1 time = np.linspace(timestart, timeend, timespacing) widthspacing = 50 widthstart = 0 widthend = 3 width = np.linspace(widthstart, widthend, widthspacing) reslist = [] matplotlib.rcparams['legend.fontsize'] = 10 fig = pyplot.figure() ax = fig.gca(projection = '3d...
Read more

php - Best Light server (Linux + Web server + Database) for Raspberry Pi -

-
i install web server database on raspberry pi (little computer). computer has 1gb ram. i want know best combination: linux distribution , web server , dbms run local server multiple users minimal latency, use php on server. , best settings performance , not have bugs (memory usage, disable plugin, disable service, etc)? i thought light debian , lighttpd server , sqlite database. solution? i think lighttpd + sqlite great choice. linux distro, debian @ centos or tiny core linux , although i'm not sure of compatibility pi. obviously, can't go wrong raspbian if want use in production , more stable performance, few more pi's , set them in cluster .
Read more

c# - "Newtonsoft.Json.JsonSerializationException unable to find constructor to use for types" error when deserializing class -

-
i developing app in xamarin android. have splash screen serialize class , pass mainactivity using intent . when try deserialize in mainactivity error message : "serializationexception unable find constructor use types" serialization : void loaddata() { currency currency = new currency(this); intent = new intent(this, typeof(mainactivity)); intent.putextra("currency", newtonsoft.json.jsonconvert.serializeobject(currency)); startactivity(intent); } deserialization : cur = newtonsoft.json.jsonconvert.deserializeobject<currency> (intent.getstringextra("currency")); // error here class constructor : public currency(context context) { thiscontext = context; } i began experiencing problem after added parameter context context constructor. has caused this? how can solve it? possible serialize/deserialize class has parameters? you need have empty constructor in currency class in order deserialize it. ...
Read more