C# Discussion Boards - CodeProject

Re: how many controll into a panel

Christian Graus8-Aug-07 23:35

Christian Graus

8-Aug-07 23:35

Do you mean how many can you fit ? More than could ever be considered sensible

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Re: how many controll into a panel

Luc Pattyn9-Aug-07 0:33

Luc Pattyn

9-Aug-07 0:33

Hi,

you can count them yourself:

foreach(Control c in myPanel.Controls) {
    if (c is TextBox) tbCount++;
    if (c is ListBox) lbCount++;
    if (c is Button) btnCount++;
    ...
}

Luc Pattyn [Forum Guidelines] [My Articles]

this weeks tips:
- make Visual display line numbers: Tools/Options/TextEditor/...
- show exceptions with ToString() to see all information
- before you ask a question here, search CodeProject, then Google

Re: how many controll into a panel

Christian Graus9-Aug-07 0:52

Christian Graus

9-Aug-07 0:52

Ah... guessing what it is people are asking is becoming an art in and of itself....

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Re: how many controll into a panel

Luc Pattyn9-Aug-07 2:23

Luc Pattyn

9-Aug-07 2:23

Programming may be an art form, contributing to CodeProject is one for sure Big Grin | :-D

Luc Pattyn [Forum Guidelines] [My Articles]

Re: how many controll into a panel

tonic_valan9-Aug-07 1:46

tonic_valan

9-Aug-07 1:46

As much as your stack and heap supports. Smile | :)

Regards,
Valan

Form WM_NCLBUTTONUP message

Maddie from Dartford8-Aug-07 23:19

Maddie from Dartford

8-Aug-07 23:19

Hello,
I am trying to handle the LButtonUp message of form title bar.
The message is getting invoked only for double Click on title bar.

How can i handle the LButtonUp event on Form title bar??

Thanks.

Gajesh

Re: Form WM_NCLBUTTONUP message

Luc Pattyn9-Aug-07 0:37

Luc Pattyn

9-Aug-07 0:37

Hi,

if nothing else works for you, you can always override the WndProc method;
here is an example from my CodeRescue article for getting hotkey messages:

// We must intercept the WM_HOTKEY message and check lParam !
protected override void WndProc(ref Message m) {
	if(m.Msg==0x0312) {	// WM_HOTKEY (winuser.h)
		int lParam=(int)m.LParam;
		if(lParam==0x00710002) RescueCode();		// CTRL+F2
	}
	base.WndProc(ref m);
}

Luc Pattyn [Forum Guidelines] [My Articles]

User Interface, setup project.

steve_rm8-Aug-07 23:18

steve_rm

8-Aug-07 23:18

Hello

VS 2005

I am creating a setup project using the deployment project.

I have added a user interface to the setup. Right click setup project | View | User interface.

The problem I am having is I need to have dialog with 2 radio buttons i.e.(A and B). If the user selects A they will enter the details of something (will need 2 text boxes). If they select B then they will need 4 text boxes.

BTW, The user interface dialog boxes are not very flexible as you cannot drag and drop you own controls on to it.

Is there a way to have 2 radio button and hide or make visible the text boxes that the user will enter into.

Many thanks for any help or suggestions,

Steve

Re: User Interface, setup project.

Christian Graus8-Aug-07 23:26

Christian Graus

8-Aug-07 23:26

Deployment is done with an msi, and no, you can't just build your own dialog forms for it.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Re: User Interface, setup project.

steve_rm9-Aug-07 0:26

steve_rm

9-Aug-07 0:26

Hello,

I thought maybe you could point me in the right direction of using the dialog boxes that come with the setup editor.

Based on the conditions of using 2 radio buttons, it will display either 2 text boxes or 4.

Thanks for any more suggestions,

Steve

Re: User Interface, setup project.

originSH9-Aug-07 1:11

originSH

9-Aug-07 1:11

http://www.google.co.uk/search?hl=en&q=custom+setup+project+dialogs&meta=[^]

There are a few articles around on creating your own custom user dialogs ... but it's not a particually nice way to do things.

If you check down the results you'll see one or 2 on CP Smile | :)

Encryption

sangramkp8-Aug-07 23:17

sangramkp

8-Aug-07 23:17

Hi I am working on a windows Application. I want to store the Passwords in SQL server 2005 in encrypted format. How to do this?

And Again how to validate the credentials with an user input

Re: Encryption

Talal Sultan8-Aug-07 23:26

Talal Sultan

8-Aug-07 23:26

If you do not need to retrieve the password that was stored, you can use a hash version of it. When a user enters his username and password in your application, you would hash the password and compare it to the hash that you have in the database to see if it matches.
If you need to have a way to retrieve the password, you cannot use hash, you need to apply an encryption algorithm to be able to decryt it later.

Talal

"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning."
--Rich Cook

Re: Encryption

sangramkp8-Aug-07 23:29

sangramkp

8-Aug-07 23:29

Thanks for reply

Can you just send me a sample of hashing. Rose | [Rose]

Re: Encryption

Talal Sultan8-Aug-07 23:36

Talal Sultan

8-Aug-07 23:36

You have two types of hashes you can do, MD5 or SHA1. The following method gives you a SHA1 hash string of the string it receives.

public string CreateSHA1PasswordHash(string inputString)
{
	SHA1 sha1 = new SHA1CryptoServiceProvider();  
	byte[] buffer = Encoding.UTF8.GetBytes(inputString); 
	byte[] cipher = sha1.ComputeHash(buffer);
	StringBuilder sb = new StringBuilder(cipher.Length * 2);  
	for (int i=0; i<cipher.Length; i++)  
           sb.Append(cipher[i].ToString("x2"));  
	return sb.ToString();
}

Hope this helps.

Talal

Re: Encryption

Christian Graus8-Aug-07 23:35

Christian Graus

8-Aug-07 23:35

Typically, you'd use the Cryptography namespace, pick an algorithm, salt your password and pass a hash into SQL Server. Then you'd pass the user input, also salted and hashed, to a stored proc that returns if the username/password combination is valid

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Re: Encryption

Vasudevan Deepak Kumar9-Aug-07 0:17

Vasudevan Deepak Kumar

9-Aug-07 0:17

You may also like to check out this library:

http://www.codeproject.com/dotnet/xcrypt.asp[^]

Vasudevan Deepak Kumar
Personal Homepage
Tech Gossips

Available Domains in Network

stancrm8-Aug-07 23:13

stancrm

8-Aug-07 23:13

Hello...

Are there any possibilities to get all available domains in network ?
(Just like the login windows. The user can choose domain from DropDownList)

Thanks...

Re: Available Domains in Network

glFrustum8-Aug-07 23:46

glFrustum

8-Aug-07 23:46

Have a look at this namespace: System.DirectoryServices.ActiveDirectory
or this article: Howto: (Almost) Everything In Active Directory via C#

Installing a windows service on a windows 2003 server

Leia20118-Aug-07 22:50

Leia2011

8-Aug-07 22:50

Hi,

I have a problem installing my windows service on a windows 2003 Server, user is a administrator.
I have no problem installing the same service under Windows XP.

I get the following error message:

An exception occurred while trying to find the installers in the c:\program files\archivetool\archivetool.exe assembly.
System.Reflection.ReflectionTypeLoadException: One or more of the types in the assembly unable to load.
Aborting installation for c:\program files\archivetool\archivetool.exe.
Rolling back assembly 'c:\program files\archivetool\archivetool.exe'.
Affected parameters are:
assemblypath = c:\program files\archivetool\archivetool.exe
logfile = c:\program files\archivetool\archivetool.InstallLog

Searching internet forum I get the idea that something with the .net Framework 1.1 ( which is the framework I need to run my service) is wrong. But I checked that the newest version of the .net Framework 1.1 for windows 2003 server is installed.

Does any of you have an idea? Iam really stuck.

thanks.
Leia2011

Re: Installing a windows service on a windows 2003 server

Talal Sultan8-Aug-07 23:22

Talal Sultan

8-Aug-07 23:22

Hi, check out this page: http://blogs.msdn.com/suzcook/archive/2003/08/11/57236.aspx[^]. It shows how to get more information about the exception and hopefully you will find out why this exception is being thrown.

Talal

markquee in c#

monuSaini8-Aug-07 22:37

monuSaini

8-Aug-07 22:37