Re: recieving error in this program - C# Discussion Boards

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Re: XML

mrithula813-Mar-09 7:57

mrithula8

13-Mar-09 7:57

Hi I retrieved port and ip using

    for (int i = 0; i < xmlnode.Count; i++)
    {
        st = xmlnode[i].FirstChild.InnerText;
        st1 = xmlnode[i].LastChild.InnerText;
    }

ipadd = Convert.ToInt32(st);
ports = Convert.ToInt32(st1);
IPEndPoint ipep = new IPEndPoint(ipadd, ports);//ipadd=127.0.0.1 port=10001

It gives me an exception"Input String was not in a correct format" but the server(.exe) opens up.In the server code i have used

IPEndPoint ipep = new IPEndPoint(ipadd, ports);

to open the connection with the client.For this opened server how should i change the following statement on the client

IPEndPoint ipep = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 10001);

How should i specify the port and ip on the client?i.e for the server opened on port 10001 and ip=127.0.0.1 (obtained from xml) how should i modify the client?Please give me your suggestions

Re: XML

harold aptroot13-Mar-09 8:33

harold aptroot

13-Mar-09 8:33

Ok debug your code, put a breakpoint on "ipadd = Convert.ToInt32(st);" and watch the value of st and stl. You may be in for a surprise.
To solve this problem.. just start using SelectSingle on an XmlDocument. It's at least 10 times as easy to get right.

As to specifying the ip/port in the client - the exact same way you did it in the server will do fine.

Re: XML

Michael Bookatz12-Mar-09 6:17

Michael Bookatz

12-Mar-09 6:17

your using HTML... look for an XML primer

recieving error in this program

Nettai12-Mar-09 5:45

Nettai

12-Mar-09 5:45

i am reading datas in text file and write into another text file..but getting exception ...

FileStream fs=new FileStream("C:\\Vicky\\DATAS\\1.txt",FileMode.OpenOrCreate,FileAccess.Write);
StreamWriter sw = new StreamWriter(fs);

FileStream fs1 = new FileStream("c:\\one.txt", FileMode.Open, FileAccess.Read);
StreamReader sr = new StreamReader(fs1);
string[] s = new string[500];
for(int i = 0; i <= 500; i++)
{
s[i] = sr.ReadLine();
}

for (int j = 0; j <= 500; j++)
{
sw.WriteLine(s[j]);
}
sw.Close();
sr.Close();
fs.Close();
fs1.Close();

error is:

Index was outside the bounds of the array.in s[i]=sr.readline().....

Re: recieving error in this program

Teuz12-Mar-09 6:01

Teuz

12-Mar-09 6:01

An array is 0 based, so 500 elements are indexed from 0 to 499.
Just get rid of the = in the for cycles Smile | :)

Re: recieving error in this program

Nettai12-Mar-09 6:14

Nettai

12-Mar-09 6:14

thanks man....we got it.....can u explain me wat problem we did it ....explain it briefly.

Re: recieving error in this program

Teuz12-Mar-09 6:18

Teuz

12-Mar-09 6:18

An array is 0 based. So if the array contains 500 elements the first has index 0 and the last 499. In your for cycle (with <=) at the end you were trying to access to the element with index 500 that obviously is outside the bounds of the array.

http://msdn.microsoft.com/en-us/library/9b9dty7d(VS.80).aspx[^]

Smile | :)

Re: recieving error in this program

#realJSOP12-Mar-09 6:41

#realJSOP

12-Mar-09 6:41

nettai wrote:
explain it briefly.

You did it wrong.

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

Re: recieving error in this program

Luc Pattyn12-Mar-09 7:12

Luc Pattyn

12-Mar-09 7:12

[0,499].Contains(500)==false

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

- before you ask a question here, search CodeProject, then Google
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get
- use the code block button (PRE tags) to preserve formatting when showing multi-line code snippets

Re: recieving error in this program

fred_12-Mar-09 9:03

fred_

12-Mar-09 9:03

sorry man I'll try harder next time plz urgt

connecting to the Deleted Objects container in AD

lane0p212-Mar-09 5:43

lane0p2

12-Mar-09 5:43

Hi All,
i'm trying to connect to the Deleted objects container in AD by using:
DirectoryEntry de = new DirectoryEntry("LDAP://CN=Deleted Objects,DC=domain,DC=com")
and it is retuning with an error saying - There is no such object on the sever. but i can see it when i use LDP!!

can anyone help?

Many Thanks,

phil

database in sql server 2000 using c#

mariamkhaqan12-Mar-09 5:37

mariamkhaqan

12-Mar-09 5:37

hi i want to make a database in sql server 2000 using c# withoust using sql server enterprise manager, how it will be done? please help me i have searched alot but unable to find enough information

Re: database in sql server 2000 using c#

Teuz12-Mar-09 6:05

Teuz

12-Mar-09 6:05

Just run the CREATE DATABASE query

http://msdn.microsoft.com/en-us/library/ms176061.aspx[^]

and then create your tables

http://msdn.microsoft.com/en-us/library/ms174979.aspx[^]

Hope this helps.

Re: database in sql server 2000 using c#

mariamkhaqan13-Mar-09 4:01

mariamkhaqan

13-Mar-09 4:01

thanks alot

Re: database in sql server 2000 using c#

Michael Bookatz12-Mar-09 6:23

Michael Bookatz

12-Mar-09 6:23

there is this thing called a book... In it they have examples and tell you how to do things. Plus if you want to make life hard for yourself with out using enterprise manager you should be able to do this yourself!

Re: database in sql server 2000 using c#

mariamkhaqan13-Mar-09 4:00

mariamkhaqan

13-Mar-09 4:00

hi from where i can get that book, and there is a restriction cant use enterprise manager

Simple question about controls

bouli12-Mar-09 5:14

bouli

12-Mar-09 5:14

Hello gurus,

I have a simple question for C# masters concerning controls.

I have a series of label with a formated name.

In a loop, I want to recover a pointer on the control (a label) by giving its name as a string.

for example:

<br />
Label lbl = null;<br />
string lblName = "";<br />
<br />
for (int i=0; i<5; i++)<br />
{<br />
  lblName = "lblL" + i.ToString(); // lblName will contain "lblL0", "lblL1" etc.<br />
<br />
  // here is what I'm looking for...<br />
  lbl = ???; // the label is supposed to point on the label with the built name contained in the variable lblName.<br />
<br />
<br />
  // now the lbl variable points on the right control with name given by the variable lblName<br />
  lbl.Text = i.ToString();<br />
}<br />
<br />

How to make the control pointing to the right one given its name?

I hope you understood my question in my poor english.

Best regards.

Fred.

There is no spoon.

Re: Simple question about controls

RyanMorris12-Mar-09 5:20

RyanMorris

12-Mar-09 5:20

Hi Fred,

Would the following solve your problem:

lbl = new Label();
lbl = (Label)FindControl("lblName");

Ryan

Re: Simple question about controls [modified]

bouli12-Mar-09 5:30

bouli

12-Mar-09 5:30

Yes, that's it, in a recursive way and for WinForms.

There is no spoon.

modified on Thursday, March 12, 2009 10:41 AM

Re: Simple question about controls

RyanMorris12-Mar-09 5:55

RyanMorris

12-Mar-09 5:55

Sorry, my mistake. How about something like this:

Control myControl = new Control();
foreach (Control c in this.Controls)
{
  if (c.Name == "lblName")
  {
    myControl = c;                              
  }
}

Re: Simple question about controls

Yusuf12-Mar-09 5:25

Yusuf

12-Mar-09 5:25

Is this[^] what you looking?

Yusuf

Oh didn't you notice, analogous to square roots, they recently introduced rectangular, circular, and diamond roots to determine the size of the corresponding shapes when given the area. Luc Pattyn[^]

Re: Simple question about controls

bouli12-Mar-09 5:38

bouli

12-Mar-09 5:38

Something like that but for WinForms...

There is no spoon.

Re: Simple question about controls

Yusuf12-Mar-09 5:56

Yusuf

12-Mar-09 5:56

The is no FindContol method in WinForm. You can implenet your own

for this to work the control names need to be unique.

public static Control FindControl(string controlName)
{
 if (!controlName.Empty)
     return this.Controls.Find(controlName, true)[0];
 
 return null;  

}

Re: Simple question about controls

bouli12-Mar-09 6:42

bouli

12-Mar-09 6:42

Ok, got it Smile | :)

Thanks.

There is no spoon.

Re: Simple question about controls

musefan12-Mar-09 6:03

musefan

12-Mar-09 6:03

you dont need to loop the controls, you can simple access it like an array and specify the control name, i.e.

Label lbl = (Label)Form1.Controls[lblName];

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