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There have been 10 items by dottorduino (Search limited from 17-June 23)
#29016 Replacing texst in strings
Posted by
dottorduino
on 14 May 2012 - 02:51 PM
in
Netduino Plus 2 (and Netduino Plus 1)
#29100 HttpWebRequest GetResponse Error
Posted by
dottorduino
on 15 May 2012 - 10:50 AM
in
General Discussion
![:)](http://forums.netduino.com/public/style_emoticons/default/smile.png)
When I call the GetResponse method, it return a null status.
This is the code
String URI = "http://" + serverIP + "/testPoll/signalr?"; pollString = URI + "transport=longPolling"; pollString += "&connectionId=" + _connectionID; pollString += "&connectionData=" + Tools.RawUrlEncode("[{\"name\":\"testPoll.Chat\",\"methods\":[\"addMessage\"]}]"); pollString += "&messageID=" + 45; pollString += "&groups=" + Tools.RawUrlEncode("[\"testPoll.Chat.foo\"]"); pollString += "\r\n"; var request = (HttpWebRequest)WebRequest.Create(pollString); request.Method = "GET"; request.KeepAlive = false; try { var httpResponse = (HttpWebResponse)request.GetResponse(); [...]
When I inspect on httpResponse, I have:
ContentEncoding: 'HttpResponse.ContentEncoding threw an Exception of type 'System.NullReferenceException'
ContentType: 'HttpResponse.ContentType threw an Exception of type 'System.NullReferenceException'
and the HttpStatus is "null".
Why I obtain this null Response?
#29243 HttpWebRequest GetResponse Error
Posted by
dottorduino
on 16 May 2012 - 08:06 AM
in
General Discussion
Hi
Have you tried using Stefan's netmf toolbox http client?
As far as i understand it the standard HttpWebRequest .net dev's are familiar with, relies on streams to operate, which although technically possible in netmf is very memory intensive and so is either not implemented or max's out the available ram very quickly. However the netmf toolbox http client takes a different approach and has worked very successfully for myself including long-polling scenarios.
Nak.
Hi Nak,
thank you for your reply.
This toolbox is awesome!
Anyway, when the program arrives to :
HTTP_Client.HTTP_Response Response = WebSession.Get(pollString);
the Response object is still null...
#29245 HttpWebRequest GetResponse Error
Posted by
dottorduino
on 16 May 2012 - 09:03 AM
in
General Discussion
thank you for your quick reply.
Even if I try this simple function:
private HTTP_Client _remoteSession; private IntegratedSocket _remoteSocket; [...] private void testFunction() { _remoteSocket = new IntegratedSocket("localhost", 80); _remoteSession = new HTTP_Client(_remoteSocket); HTTP_Client.HTTP_Response response = _remoteSession.Get(""); [...]
When the .Get(...) method is called, I encounter this message:
An unhandled exception of type 'System.NullReferenceException' occurred in System.dll
The problem (for the debugger) is in IntegratedSocket.cs at line 75.
#29247 HttpWebRequest GetResponse Error
Posted by
dottorduino
on 16 May 2012 - 09:25 AM
in
General Discussion
For localhost it makes sense, since localhost refers to the Netduino itself, which doesn't listen on port 80.
...this was the problem
![:mellow:](http://forums.netduino.com/public/style_emoticons/default/mellow.png)
I'm porting from a Console Application where, of course, I refer to my IIS using localhost and I forgot this "little" difference between localhost on a PC and localhost on simulator -.-
Thank you for your support.
#29318 HttpWebRequest GetResponse Error
Posted by
dottorduino
on 17 May 2012 - 08:18 AM
in
General Discussion
@Stefan, is their a use case for adding additional info to the XML comment for Simple socket that entering localhost here means you are connecting to the NETMF Board the client is running on, or similar words to that effect?
Nak.
Just for dummies
![:)](http://forums.netduino.com/public/style_emoticons/default/smile.png)
Now I'm fighting with the CLR_E_OUT_OF_RANGE error at runtime!!!
![:angry:](http://forums.netduino.com/public/style_emoticons/default/angry.png)
Maybe the string for the request is too long?
...a few minutes later...
Solved removing the "\r\n" line from my string.
#29319 Transfer file PC to NetDuino SD Card
Posted by
dottorduino
on 17 May 2012 - 09:04 AM
in
Netduino Plus 2 (and Netduino Plus 1)
it is possible transfer file from PC Application (WPF) to Netduino SD card reader?
If so, can I use code like this?
System.IO.File.Copy(_sourceFile, _destFile, true);where _destFile is
_destFile = System.IO.Path.Combine(@"SD:\", "myfile.foo");
thank you
bye
#29575 Map Serial Port to PC COM
Posted by
dottorduino
on 23 May 2012 - 10:00 AM
in
Netduino Plus 2 (and Netduino Plus 1)
serial.write(b,0,b.Lenght);
the .Net MF route the write request to a COM port on my PC?
I need to do this because I don't own a real NetDuino device at moment.
#29627 Transfer file PC to NetDuino SD Card
Posted by
dottorduino
on 24 May 2012 - 07:54 AM
in
Netduino Plus 2 (and Netduino Plus 1)
#29628 Map Serial Port to PC COM
Posted by
dottorduino
on 24 May 2012 - 07:57 AM
in
Netduino Plus 2 (and Netduino Plus 1)
Why the emulator should not fit the requirement?
Ciao Mario.
Probably the emulator is able to do this, but I can't find a way to make it happen..
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