Re: Compiler options in C# - C# Discussion Boards

udikantz11-Jun-08 3:22

11-Jun-08 3:22

i set that in a the main class of the project
these are the parameters that i pass to the method , i chenged the email and password to something fake be it looks something like that:
start_post("https://login.facebook.com/login.php", "challenge=e7d654f99268a01kl94007be0e399755&md5pass=1&noerror=1&email=someemail@gmail.com&pass=coolpassword&charset_test=%E2%82%AC%2C%C2%B4%2C%E2%82%AC%2C%C2%B4%2C%E6%B0%B4%2C%D0%94%2C%D0%84");

Net

Re: facebook login.

Brandon Toner17-Mar-09 11:15

Brandon Toner

17-Mar-09 11:15

I had the same problem and i used the line

WebReq.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.7) Gecko/2009021910 Firefox/3.0.7 (.NET CLR 3.5.30729)";

it makes the server think that its running FireFox

Re: facebook login. [modified]

Member 41081678-Sep-09 23:16

Member 4108167

8-Sep-09 23:16

hi this code is running fine Facebook Login

protected void Page_Load(object sender, EventArgs e)
   {
       //string strBuffer = "email=" + username + "&pass=" + Password + "&login=Login";
       string strBuffer = "email=xxxxxxxxxxx&pass=xxxxxxxxxxxxx;login=Login";

      start_post(strBuffer);
   }

   public void start_post(string strBuffer)
   {
       //Our postvars
       byte[] buffer = System.Text.Encoding.ASCII.GetBytes(strBuffer);
       //Initialisation

       HttpWebRequest WebReq = (HttpWebRequest)WebRequest.Create("https://login.facebook.com/login.php?m&next=http%3A%2F%2Fm.facebook.com%2Fhome.php");
       //Our method is post, otherwise the buffer (postvars) would be useless
       WebReq.Method = "POST";
       //We use form contentType, for the postvars.

       WebReq.ContentType = "application/x-www-form-urlencoded";
       //The length of the buffer (postvars) is used as contentlength.
       WebReq.ContentLength = buffer.Length;
       //We open a stream for writing the postvars
       WebReq.Referer = "http://www.facebook.com/index.php?";

       Stream PostData = WebReq.GetRequestStream();
       //Now we write, and afterwards, we close. Closing is always important!
       PostData.Write(buffer, 0, buffer.Length);
       PostData.Close();
       //Get the response handle, we have no true response yet!
      // HttpWebResponse WebResp = (HttpWebResponse)WebReq.GetResponse();
      // //Let's show some information about the response
      //WebResp.StatusCode;
      //WebResp.Server;

       //Now, we read the response (the string), and output it.
       using (HttpWebResponse response = (HttpWebResponse)WebReq.GetResponse())
       {
           using (StreamReader reader = new StreamReader(response.GetResponseStream()))
           {
           Response.Write(reader.ReadToEnd());

           }
       }
   }

modified on Monday, November 2, 2009 7:32 AM

How initiate GPRS connection in WM 6

manu4ever10-Jun-08 12:12

manu4ever

10-Jun-08 12:12

Hi,
I have an TCP server client application, with client running on the WM 6.0.
I have using TcpClient class to establish connection to my server and send data. If I am using wifi the code is working fine, but if I am trying to use GPRS its not working. I think I have to start GPRS connection first. Can someone please tell me how to fix this.
here is the client side code
public class Client
{
public void GpsClient(string Ostring)
{

TcpClient socketForServer;
try
{
socketForServer = new TcpClient("energystudy.dyndns.org", 13000);
}
catch
{
Console.WriteLine("Failed to connect to server at {0}:13000", "energystudy.dyndns.org");
return;
}
NetworkStream networkStream = socketForServer.GetStream();
System.IO.StreamReader streamReader = new System.IO.StreamReader(networkStream);
System.IO.StreamWriter streamWriter = new System.IO.StreamWriter(networkStream);
try
{
string outputString;

// read the data from the host and display it
{
outputString = streamReader.ReadLine();
//Console.WriteLine(outputString);
streamWriter.WriteLine(Ostring);
//Console.WriteLine("Client Message");
streamWriter.Flush();
}
}
catch
{
Console.WriteLine("Exception reading from Server");
}

networkStream.Close();
}
}

Compiler options in C#

Member 391904910-Jun-08 11:51

Member 3919049

10-Jun-08 11:51

I'm trying to understand the different compiler options in C#.

What exactly is JIT? Is JIT implemented by default or is there a different "default" compiler?

I'm not quite clear on the C# compiler options, relationships and differences. Please explain.

Re: Compiler options in C#

Christian Graus10-Jun-08 11:57

Christian Graus

10-Jun-08 11:57

I recommend doing some reading on the MSDN site. JIT stands for just in time. The C# compiler creates machine code for each part of your program, when it gets run for the first time. There's no other options I know of, excepting that you can buy expensive tools that compile to machine code ( and thus do not need the .NET framework ) all in one go.

Christian Graus

Please read this if you don't understand the answer I've given you

"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )

Re: Compiler options in C#

Member 391904910-Jun-08 12:05

Member 3919049

10-Jun-08 12:05

So each language has its own compileer, right? One for C++, one for VB, one for C#? I assume that each of these compilers has its own JIT functionality. Is this correct?

So is JIT simply a feature of a compiler rather than a type of compiler?

I have read that the C++ compiler supports function inlining but the C# compiler does not. Has MS updated the C# compiler to support function inlining or does function inlining still not exist in the C# compiler? If not then why not?

Re: Compiler options in C#

Christian Graus10-Jun-08 12:25

Christian Graus

10-Jun-08 12:25

Member 3919049 wrote:
I assume that each of these compilers has its own JIT functionality. Is this correct?

No, C++ is a different kettle of fish, unless you use C++/CLI. The compiler is actually in the framework.

Member 3919049 wrote:
I have read that the C++ compiler supports function inlining but the C# compiler does not

Possibly. One thing to be clear on here - C++ function inlining does not mean you control it. The compiler can choose to inline something without you asking for that, and it can ignore your request. This is part of the c++ standard.

Member 3919049 wrote:
Has MS updated the C# compiler to support function inlining or does function inlining still not exist in the C# compiler?

What you need to understand is, the C# compiler works totally differently to the C++ one. There is no inlining in C#.

Re: Compiler options in C#

Member 391904910-Jun-08 12:46

Member 3919049

10-Jun-08 12:46

Thanks Christian - You really know .NET quite well.

Is there any reason why the C# compiler does not do function inlining?

It seems like function inlining would provide a big performance improvement and it seems like MS has already done the work to define this logic for the C++ compiler so it doesn't seem like it would be too complicated to implement similar logic in the C# compiler....

Re: Compiler options in C#

Christian Graus10-Jun-08 13:04

Christian Graus

10-Jun-08 13:04

Member 3919049 wrote:
Is there any reason why the C# compiler does not do function inlining?

I guess they didn't bother to add it.

Member 3919049 wrote:
It seems like function inlining would provide a big performance improvement

In very rare cases, perhaps.

Member 3919049 wrote:
it seems like MS has already done the work to define this logic for the C++ compiler

The logic is trivial, actually.

Member 3919049 wrote:
so it doesn't seem like it would be too complicated to implement similar logic in the C# compiler....

It would be trivial for them to give optional parameters in C#, but have they ? I don't know why.

Re: Compiler options in C#

Judah Gabriel Himango10-Jun-08 13:24

Judah Gabriel Himango

10-Jun-08 13:24

Christian Graus wrote:
I guess they didn't bother to add it.

The C# compiler won't do that kind of thing to preserve reflection capabilities, I believe. Inlining happens at the JIT level[^].

For more info, see Eric Gunnerson's Why Doesn't C# have an inline keyword?[^]

Life, family, faith: Give me a visit.

From my latest post: "How differently the psalmist saw it! How blessed -- how truly happy with real joy! -- is the man who delights in the Law of the Lord."

Judah Himango

Datatable issue

NewToAspDotNet10-Jun-08 10:41

NewToAspDotNet

10-Jun-08 10:41

Hi All,
I have a datatable with some data :

ActivityNr ActivityStartTime ActivityDuration
001 20:30 00:30
002 20:30 00:40
003 20:30 00:20

As you can see, activity 002 has a longer Duration(40 minutes) then Activity 001(30 minutes) and activity 003(20 minutes).
How can i delete the activities with shorter 'ActivityDuraton' from the datatable and keep the one with the longest 'ActivityDuration???
Assuming the datatable above, the end resulat most be:

ActivityNr ActivityStartTime ActivityDuration
002 20:30 00:40

Thanx.

Re: Datatable issue

Christian Graus10-Jun-08 11:09

Christian Graus

10-Jun-08 11:09

Didn't you ask this the other day ? I think you need to ask in the SQL forum, b/c you're asking how to write a query to get these values, right ?

a security problem [modified]

Sajjad Izadi10-Jun-08 10:16

Sajjad Izadi

10-Jun-08 10:16

hi friends,
i have a program which is for locking the screen (disappers the start menu and other windows) and the form of program appears and wants a password to login and then allows the user to continue his work.

in that program, the programmer has used user32.dll and kernel32.dll by DllImport class.

but the problem is that it works if you are a member of administrators. when i change my group to power users and run the program, an error appears ("an error occured, tell this to microsoft") and the program exits.

i have changed the security accesses of power users from the 'security' tab of windows xp (i have changed access of user32.dll and kernel32.dll in %windir%\system32\ to 'full control') but nothing changed and error again appeared when i run the program in a power user account.

what should i do if i want to use such programs (which uses DllImport) in non-administrator account?

thanks

modified on Tuesday, June 10, 2008 4:55 PM

Re: a security problem

Christian Graus10-Jun-08 11:10

Christian Graus

10-Jun-08 11:10

You don't need to be an admin to use dll import. You probably need to be one to use the APIs you are calling.

Re: a security problem

Sajjad Izadi10-Jun-08 11:17

Sajjad Izadi

10-Jun-08 11:17

thanks for your consideration,

you mean the problem can not be solved in any way?

what should i do to solve this problem?
is the problem for that *.Dll s?
how can i solve my problem then?

thanks again

Re: a security problem

Christian Graus10-Jun-08 11:24

Christian Graus

10-Jun-08 11:24

Sajjad Izadi wrote:
is the problem for that *.Dll s?

No, the problem is that you've chosen to call APIs that only work for an admin. You need to find a different way to do what you're trying to do, read the docs on the APIs you're calling and see which ones require admin, then find a differernt way.

[Message Deleted]

Sr...Frank10-Jun-08 10:13

Sr...Frank

10-Jun-08 10:13

[Message Deleted]

Re: AutoComplete Combobox!!!

teejayem10-Jun-08 10:18

teejayem

10-Jun-08 10:18

Quit Double Posting[^]

Don't be overcome by evil, but overcome evil with good

How to create a new ASPNETDB database?

allende10-Jun-08 9:02

allende

10-Jun-08 9:02

Hi friends,

I had a website running in my local computer with no problem. When I tried to uploaded to my server all the DB permissions were messed up. I tried to reproduce the error in my local PC but I ended up messing up my site config,

I'm using memberships to manage accesses to my site. I want to create a website from scratch so I will have a brand new ASPNETDB database. How can I do this? I have created several new websites in different folders in VS but that only created the App_Data folder with no database in it.

How can I start from scratch???

Thanks a lot

Xml serialization exception [modified]

Eric Burns10-Jun-08 8:33

Eric Burns

10-Jun-08 8:33

I have a class SubClass that inherits from class Base.

I have an array of type Base that I want to serialize. So, that the serializer knows about all the possible subclasses, I called the constructor like so:

XmlSerializer s = new XmlSerializer( ObjectType, extraTypes );

where extra types is an array of types that includes SubClass.

When I make this call to the constructor, I get the exception:

Outer exception: There was an error reflecting type 'Subclass'

Inner exception: Types 'Subclass' and 'Subclass' both use the XML type name, 'Subclass', from namespace ''. Use XML attributes to specify a unique XML name and/or namespace for the type.

There clearly aren't two classes with the same name or my code wouldn't have compiled.

Any thoughts on what my problem could be?

modified on Tuesday, June 10, 2008 3:03 PM

Re: Xml serialization exception

leppie10-Jun-08 23:41

leppie

10-Jun-08 23:41

Eric Burns wrote:
Any thoughts on what my problem could be?

Dump the xml schema from the Type/Graph and see why 2 different types are created.

xacc.ide - now with TabsToSpaces support
IronScheme - 1.0 alpha 4a out now (29 May 2008)

CollectionEditor

Gareth H10-Jun-08 7:14

Gareth H

10-Jun-08 7:14

I have a Node that has a collection of Labels. The user can click on the node and view the properties in a PropertyGrid. If the user clicks on the collection of labels they can add/remove labels via the Collection Editor.

How do i listen for when the user has added a new label to the collection?

Regards,
Gareth.

(FKA gareth111)

Re: CollectionEditor

led mike10-Jun-08 9:52

led mike

10-Jun-08 9:52

Gareth H wrote:
How do i listen for when the user has added a new label to the collection?

What version of .NET are you in. AFAIK in 2.0 there are no notifications. The form makes a local copy (or even more than one) of the collection and modifies the copy and returns it to you (if I remember correctly). The way I dealt with that was I made my own form that was an exact duplicate of the built in one and added my own events to it, like OnAdd, OnDelete, OnChange or some such. Oh, also it modified directly the collection you gave it.

If you find a better way, particularly if something is added in 3.X, please a reply to me. Thanks.

led mike

Re: CollectionEditor

Gareth H10-Jun-08 10:19

Gareth H

10-Jun-08 10:19

led mike,

I am using .NET 3.5. I will carry on looking and tell you if i find anything.

Regards,
Gareth.

(FKA gareth111)

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