[CLOSED] Ext.net.DirectMethod.request webservice call and isUpload

[CarpFisher]

Hi

Using the examples https://examples2.ext.net/#/Events/D...ds/WebService/

I am calling a WebService Endpoint from a DirectMethod, only difference is my service returns the actual file for download from the asmx file. Here is the function and I've tested it without problem by called it directly.

 [WebMethod]
        public void DownloadScript(string script)
        {
         
                HttpContext.Current.Response.Clear();
                HttpContext.Current.Response.Charset = "UTF-16";
                HttpContext.Current.Response.ContentType = "application/x-pmt; charset=\"UTF-16\"";
                HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.Unicode;
                HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment;filename="+ ts.Name+ ".pmt");
                HttpContext.Current.Response.BinaryWrite(System.Text.Encoding.Unicode.GetPreamble());
                HttpContext.Current.Response.Write(script);
                HttpContext.Current.Response.Flush();
                HttpContext.Current.Response.End();

          
        }

I know I need isUpload = true somewhere, otherwise I'm going to get BadResponse. However doesn't matter if I put isUpload or not in the following code, it still return BADRESPONSE: Cannot read property 'documentElement' of null

   MyControl.Listeners.Click.Handler = @"
                         Ext.net.DirectMethod.request({
                                        url          : '/TestScriptWS.asmx/DownloadScript',
                                        isUpload     : true,
                                        cleanRequest : true,
                                        json         : true,   
                                        params       : {                                           
                                            script : '1234'
                                        }
                                    });
                      ";

It seems that DirectMethod.request doesn't read that isUpload parameter.... where should I put that? I've spend long time trying to figure that out but no joy. Thank you very much

[Daniil]

Hi @CarpFisher,

AJAX downloading requires a <form>.

Please define a <form>.

<form id="form1" class="x-hidden"></form>

and refer it in the DirectMethod config

formId: "form1"

[CarpFisher]

not working :(

I've got this error after formId is defined

System.InvalidOperationException: Request format is invalid: multipart/form-data; boundary=----WebKitFormBoundaryiCoYwSAmMGdO8yW4.
   at System.Web.Services.Protocols.HttpServerProtocol.ReadParameters()
   at System.Web.Services.Protocols.WebServiceHandler.CoreProcessRequest()

Am I missing anything?

[CarpFisher]

This is the info I've got from Chrome's developer tool

Request URL:http://localhost:3269/WebServiceHandlers/TestScriptWS.asmx/DownloadScript
Request Method:POST
Status Code:500 Internal Server Error


Request Headers:

Accept:text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Charset:ISO-8859-1,utf-8;q=0.7,*;q=0.3
Accept-Encoding:gzip,deflate,sdch
Accept-Language:en-US,en;q=0.8
Cache-Control:max-age=0
Connection:keep-alive
Content-Length:381
Content-Type:multipart/form-data; boundary=----WebKitFormBoundaryXPeMdCUDo9oWvW0x
Cookie:ASP.NET_SessionId=kwqsu2lgddynenalgx2iqcsn
Host:localhost:3269
Origin:http://localhost:3269
Referer:http://localhost:3269/
User-Agent:Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.4 (KHTML, like Gecko) Chrome/22.0.1229.79 Safari/537.4
Request Payload
------WebKitFormBoundaryXPeMdCUDo9oWvW0x
Content-Disposition: form-data; name="__EVENTTARGET"

ResourceManager1
------WebKitFormBoundaryXPeMdCUDo9oWvW0x
Content-Disposition: form-data; name="__EVENTARGUMENT"

-|public|Click
------WebKitFormBoundaryXPeMdCUDo9oWvW0x
Content-Disposition: form-data; name="{%22ScriptID%22:3}"


------WebKitFormBoundaryXPeMdCUDo9oWvW0x--
Response Headers:

Cache-Control:private
Content-Length:281
Content-Type:text/plain; charset=utf-8
Date:Thu, 27 Sep 2012 18:27:31 GMT
Server:Microsoft-IIS/7.5
X-AspNet-Version:4.0.30319
X-Powered-By:ASP.NET
X-SourceFiles:=?UTF-8?B?QzpcdGZzXFNvdXJjZSAtIFVBVFxQTVBUZXN0XFBNUFRlc3RNYXN0ZXJTZXJ2ZXJXZWJcV2ViU2VydmljZUhhbmRsZXJzXFRlc3RTY3JpcHRXUy5hc214XERvd25sb2FkU2NyaXB0?=

[Vladimir]

It is not Ext.Net problem

You can read about the issue
http://www.developersalley.com/blog/...-from-PHP.aspx
http://forums.asp.net/t/1551950.aspx/1
http://stackoverflow.com/questions/2...ipart-form-dat

Solution: do not use parameters in WebMethod, read passed parameters manually from Request object

[CarpFisher]

Thank you it works. Just a little thing to note that I have to use

 json: false

otherwise the variable name in the form will be a json object and you can't really retrieve that from the Request object in the usual way.

[Daniil]

By the way, false is by default. You can just omit this.