reading from a file and retrieving contents - C# Discussion Boards

Keith Barrow9-Apr-10 5:09

Keith Barrow

9-Apr-10 5:09

Told you it was urgent:

http://www.codeproject.com/Messages/3433235/please-i-need-the-complation-of-4-queen.aspx[^]

Unreal.

Dalek Dave: There are many words that some find offensive, Homosexuality, Alcoholism, Religion, Visual Basic, Manchester United, Butter.
Pete o'Hanlon: If it wasn't insulting tools, I'd say you were dumber than a bag of spanners.

amrreko9-Apr-10 5:09

amrreko

9-Apr-10 5:09

code sent please i give up to try
that in main topic i added code

Keith Barrow9-Apr-10 5:14

Keith Barrow

9-Apr-10 5:14

You have reposted instead of adding to the original thread.

I suggest you google for the breadth-first algorithm for this problem, if that is the one you want. Then work out how to implement it in C#. This is a well known problem, there is plenty of material on the Internet.

In your first post you didn't give any code, let us know what is wrong or ask what you needed. You need to do all of this before you'll get a reasonable answer. The other thing is, people here won't do your homework / employed work for you, but it looks like you are asking for this, even if that is not what you meant.

PIEBALDconsult9-Apr-10 5:07

PIEBALDconsult

9-Apr-10 5:07

I thought it meant "completion" -- gimme the whole thing.

Viral Upadhyay9-Apr-10 4:38

Viral Upadhyay

9-Apr-10 4:38

I didn't find any question here.
Looks like you posted your test paper answers for your friends. Dead | X|

Viral
My Site

Save Our Tigers

server extension interface concept

amrreko9-Apr-10 5:38

amrreko

9-Apr-10 5:38

i will explain simply

make a program to solve 4 queen problem that by using two classes
Bfs class that contains breadth first search
and Node class contains Best node to choose
take that my work in section

http://www.mediafire.com/?zkzhlenykj3[^]

picture explain
http://www.mediafire.com/?txky0xkdngq[^]

class Node
    {

        public bool[,] state { set; get; }//1
        public Node parent { set; get; }//2
        public List<Node> childs { get; set; }//3
        //6
        public int level { get; set; }
        public int Hfunction()//4
        {
        int res=0;
            return res;
        }
        public void generate_child()//5
        {
            for (int i = 0; i < 4; i++)
            {
               //creat copy of an object then do castting
                bool[,] newstate = (bool[,])this.state.Clone();//8
                Node child = new Node();//7
                childs.Add(child);//add to list
                child.parent = this;//declare to parent
                child.level = this.level + 1;
                newstate[child.level, i] = true;//9
                child.state = newstate;
            }
        
        
        }
        //10
        public bool visited { get; set; }
        public Node GetBestChild()//11
        {

            int Min = int.MaxValue;//max value  12
            int min_index = -1;//out side range of index
            Node BestChild = null;//declare null value for bestchild node
            for (int i = 0; i < 4;i++ )
            {
                int CurrentValue = this.childs[i].Hfunction();
                if (CurrentValue < Min && this.childs[i].visited == false)
                {
                    BestChild = this.childs[min_index];//14
                    BestChild.visited = true;

                    Min = CurrentValue;//13
                    min_index = i;//13

                }


            }
         return BestChild;
        }

    }

class BFS
{
    public Node BfsProcess(Node root)
    {
        Node soultion = null;
        if (root.Hfunction() == 4)
        {

            return root;
        }
        else {
            root.generate_child();
            Node bestchild =null;
            while ((bestchild = root.GetBestChild()) != null)
            {
                soultion = BfsProcess(bestchild);

            }
                    return soultion;
        }

    }

}

you can find nice solve but must use bfs
i find smart project like http://www.mediafire.com/?txky0xkdngq[^]
but i need to do simple project 4x4 board

dialer19-Apr-10 2:46

dialer1

9-Apr-10 2:46

I have a server class that should be able to dynamically load classes that implement IServerExtension from a dll. Our current concept works and looks like this:

Project [ServerExtensionInterface]

interface IServer { /*several important methods that do server stuff*/ }
interface IServerExtension { Init(IServer srv); /*init will be called from the server after creating an instance*/ }

Project [Server]: Reference to [ServerExtensionInterface]

class Server : IServer
{
/*Implements the curious Methods of IServer*/
List<iserverextension> Extensions = new List<iserverextension>
void LoadExtFromDll(string filename) { /*open dll assembly, create class instance and call newext.Init(this);*/ }
}

Project [TestExtension]: Reference to [ServerExtensionInterface]

class TestExtension : IServerExtension
{
IServer Server;
TestExtension() { /*make some extension-internal setup stuff*/ }
Init(IServer srv) { this.Server = srv; /*some additional stuff for communicating with the server*/ }
/* some other things that do cool stuff */
}

---

This all does work well, however, there are these two things that bug me a bit:
Server.ExtensionList ---[reference]--> Extension
Extension.Server ---[reference]--> Server
I'm not sure if this bi-directional association is any good. It could end up in infinite loops or something.

Also, when compiling, the output is as follows:
Server Project: Server.exe, ServerExtensionInterface.dll

TestExt Project: TestExtension.dll, ServerExtensionInterface.dll

The identical interface dll file. I don't like having that additional dll. It is created because the ServerInterfaceExtension project that is referenced to, needs to be compiled to have the IServer and IServerExtension types available in the extensions and the server. Since it is a independent project after all, these types compile into their own dll.

It is not an option to entirely remove the ServerExtensionInterface project and supply the actual Server and Extension projects directly with the files that define the interface. This will lead to type incompatibility. The IServer and IServerExtension in Server.exe may be different from those in TestExtension.dll, thus methods (such as Init(IServer srv) can not be invoked.

Question:
I'd like to know whether there is a general misconception in my interface ideas or something, maybe someone has experience with such things?

reading from a file and retrieving contents

Morgs Morgan9-Apr-10 2:09

9-Apr-10 2:09

Hi all,

I am using

<input id = "files" type = "file" runat = "server"/>

for a user to upload a file, this file will have contents similar to:

Morgan,Freeman,morgan@domain.co.za,0743700187,1987/12/31
Morgan,Obama,obama@statehouse.com,0743720187,2010/12/31

I then want to separate these fields accordingly and assign them... like,

first.Text = "Morgan";
last.Text = "Freeman";
email.Text = "morgan@domain.co.za";

these values should be retrieved from the file remember,
Does anyone know how I can do this or approach to take.
Please help D'Oh! | :doh:

Thanks,
Morg

J4amieC9-Apr-10 2:29

J4amieC

9-Apr-10 2:29

What specific bit are you having trouble with?

Reading from a textfile?[^]

Splitting a string into an array?[^]

Reading an element from an array?[^]

Morgs Morgan9-Apr-10 3:10

9-Apr-10 3:10

Thanks man that was so helpful Thumbs Up | :thumbsup:

OriginalGriff9-Apr-10 2:30

OriginalGriff

9-Apr-10 2:30

Try this:

string[] lines = File.ReadAllLines(path);
foreach (string s in lines)
   {
   string[] fragments = s.Split(',');
   ...
   }

You should never use standby on an elephant. It always crashes when you lift the ears. - Mark Wallace

C/C++ (I dont see a huge difference between them, and the 'benefits' of C++ are questionable, who needs inheritance when you have copy and paste) - fat_boy

Morgs Morgan9-Apr-10 3:32

A reference to 'mscorlib' cannot be added

9-Apr-10 3:32

Hi OG,
Thanks alot,
you code works quiet ok but I have another issue, look at my code below:

HttpPostedFile myFile = files.PostedFile;// Get a reference to PostedFile object
     string strFilename = Path.GetFileName(myFile.FileName);
     string[] lines = File.ReadAllLines(strFilename);
     foreach (string s in lines)
     {
         string[] fragments = s.Split(',');

         errors.Text = fragments[0];
         errors.Visible = true;
     }

remember the contents of my file look like:

Kiss,Simwaba,morgan@domain.co.za,0743720187,1987/12/31
Person,Simwaba,morgan@domain.co.za,0743720187,1987/12/31
what happens is that when i pick

errors.Text = fragments[0];

it
returns "Person" which is the first index[0] in the second line.
I don't quiet know why it ignores the first line....

Please help me in case am making a mistake somewhere.

Morg

sekannak9-Apr-10 2:00

sekannak

9-Apr-10 2:00

Hi,
I am working .net 3.5 version.
I am developing windows application.
I need to add reference the mscorlib dll from the microsoft reference ,
but i cannot able to do that instead of i got this error as follows,

"A reference to 'mscorlib' could not be added' this component is automatically added by the project system and cannot be referenced directly".

So how to resolve this problem..

Can u please explain me...

Thanks & regards,
kannak......

kannak

Getting an article published on CodeProject should be easier and faster for Bronze and Silver authors.

Luc Pattyn9-Apr-10 2:06

Luc Pattyn

9-Apr-10 2:06

sekannak wrote:
I need to add reference the mscorlib dll

why is that??

I never felt a need to add it, as it is always present. It is the core of .NET (you could check with Reflector).

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]

Morgs Morgan9-Apr-10 2:13

9-Apr-10 2:13

sekannak wrote:
instead of i got this error as follows,

"A reference to 'mscorlib' could not be added' this component is automatically added by the project system and cannot be referenced directly".

Just like the error says, it's self explanatory.
Besides, why do you want to reference it? tell me exactly what you want
to do with thi dll,

Morg

harold aptroot9-Apr-10 2:28

harold aptroot

9-Apr-10 2:28

Well huh? If it is not present, that means you explicitly checked that one checkbox in the advanced build settings that says "Do not reference mscorlib.dll" - just uncheck that

Message Removed

9-Apr-10 2:31

sekannak

9-Apr-10 2:31

Message Removed

harold aptroot9-Apr-10 2:34

harold aptroot

9-Apr-10 2:34

That function is not provided by .NET.
But even if it were, mscorlib.dll is referenced already unless you checked said checkbox.

(and btw, it's not like I'd give you any help after you were so nice as to give me a 1-vote)

harold aptroot9-Apr-10 3:30

harold aptroot

9-Apr-10 3:30

Ok I've had it - 2 downvotes without explanation on a completely legitimate post?
No more help from me for at least a year.

sekannak9-Apr-10 2:33

sekannak

9-Apr-10 2:33

Hi,

I need to use password Encryption file, the file is below
unix_md5_crypt

Fot that i came to know, to include the the reference , am not sure.

Can u please explain ...

kannak

Dave Kreskowiak9-Apr-10 3:19

Dave Kreskowiak

9-Apr-10 3:19

You don't need to add a reference to mscorlib. All you do is import the System.Cryptography namespace and the classes will be available to you without having to specify the entire namespace path to it.

DId you also realize that MD5 is considered to be broken by the entire industry? It's easily cracked now.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008
But no longer in 2009...

Getting an article published on CodeProject should be easier and faster for Bronze and Silver authors.

Luc Pattyn9-Apr-10 2:36

Luc Pattyn

9-Apr-10 2:36

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