C# Controls in MFC - C# Discussion Boards

Stefan Troschuetz30-Nov-04 3:50

30-Nov-04 3:50

You should take a look at the MSDN topic for the type from the System.Security.Cryptography.Xml namespace that you want to use. At the bottom you find the information which dll contains this type. E.g. to use the System.Security.Cryptography.Xml.DataObject class you have to reference the System.Security.dll.

www.troschuetz.de

System.Security.Cryptography.Xml

Andy H30-Nov-04 3:22

Andy H

30-Nov-04 3:22

I want to use the above namespace but when I type:

System.Security.Cryptography.

I only have the namespace X509Certificates and don't have Xml

Can someone please tell me what DLL etc I need to reference to get the required namespace.

Thanks

DLP-245PL

hagay_ar30-Nov-04 3:11

hagay_ar

30-Nov-04 3:11

has anyone worked with DLP-245PL?

Re: DLP-245PL

Dave Kreskowiak30-Nov-04 5:32

Dave Kreskowiak

30-Nov-04 5:32

A survey!
Put me down for a 'NO'.

What kind of programming problem are you having with C#?

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Re: DLP-245PL

DavidNohejl30-Nov-04 11:59

DavidNohejl

30-Nov-04 11:59

Dave Kreskowiak wrote:
A survey!

Big Grin | :-D

where is option: "What the hell is DLP-245PL?"? Confused | :confused:

...
google-> WTF | :WTF:

it looks similar to *something*... soon I'll fail exam from *it* Cry | :((

Dave Kreskowiak wrote:
What kind of programming problem are you having with C#?

hmm... managed firmware? I don't think so Wink | ;)

regards,
David 'DNH' Nohejl

Never forget: "Stay kul and happy" (I.A.)

Re: DLP-245PL

Alex Korchemniy30-Nov-04 8:33

Alex Korchemniy

30-Nov-04 8:33

Put me down as a "no" also. Laugh | :laugh:

This posting is provided "AS IS" with no warranties, and confers no rights.

Alex Korchemniy

DLP-245PL

Anonymous30-Nov-04 3:06

Anonymous

30-Nov-04 3:06

has anyone work with DLP-245PL?

C# Controls in MFC

Member 1697730-Nov-04 2:42

Member 16977

30-Nov-04 2:42

Hi All,

I have managed to Host (C#)Windows Froms Control in MFC Application.
MFC Application is Dialog based application where i did "Insert ActiveX Control" on a dialog and i am able to see the Control on Dialog.When i execute Program it runs fine.

Problem is after that when i Close Development Environment (VC++(6.0) IDE)and open it agian,it gives error "The ActiveX Control can not be instantiated"
"The ActiveX Control MyControl.MyControl1 Failed to initialize properly"
And in Design environment it shows Blue background on my control.But when i run it, it runs fine.

It is very annoying ,every time i closes and opens the IDE error is shown.
Can anybody give some advice on this.

Thanks
TusharM.

Printing Arrays...

GRMartin30-Nov-04 1:33

GRMartin

30-Nov-04 1:33

Does anyone have a function, method or sip of code that will print an array to a multiline string like print_r() will do in PHP?

Thank You

Re: Printing Arrays...

leppie30-Nov-04 2:05

leppie

30-Nov-04 2:05

string Print(Array arr)
{
  StringWriter w = new StringWriter()
  foreach (object s in arr)
  { 
    w.WriteLine(s);
  }
  return w.ToString();
}

^{top secret
Download xacc-ide 0.0.3 now!
See some screenshots}

Re: Printing Arrays...

Daniel Turini30-Nov-04 21:56

Daniel Turini

30-Nov-04 21:56

I don't know neither PHP or print_r, but you could easily join a string with String.Join(Environment.NewLine, yourArray) and print it.

Yes, even I am blogging now!

Re: Printing Arrays...

Gmartin (No Time To Login)30-Nov-04 22:14

Gmartin (No Time To Login)

30-Nov-04 22:14

print_r would print it something like this

[0] => [0] => "Value0"
[1} => "Value0b"
[1] => [0] => "Value1"
[1} => "Value1b"
[2] => [0] => "Value2"
[1} => "Value2b"
[3] => [0] => "Value3"
[1} => "Value3b"
...
[n] => [0] => "Valuen"
[1} => "Valuenb"

3-dimensions would branchout 3 times... 4, 4times... you get the drill

Re: Printing Arrays...

Gmartin (No Time To Login)30-Nov-04 22:16

Gmartin (No Time To Login)

30-Nov-04 22:16

sorry it didnt keep the tabs...

How to make C# (client) and VB6(server) send string to each other on a network

Member 155463330-Nov-04 1:28

Member 1554633

30-Nov-04 1:28

i'm developing a PDA module on C# and i have to communicate with the server which is running on VB6 (Winsock). i'm confused...can some one help me on how to overcome this problem.

thanks

Life has its ups and downs, so does programming....

Re: How to make C# (client) and VB6(server) send string to each other on a network

Nick Parker30-Nov-04 14:50

Nick Parker

30-Nov-04 14:50

damasta2k wrote:
i'm confused...can some one help me on how to overcome this problem.

There is a lot of information available on socket-based programming both in terms of documentation and articles. The Code Project has many articles here, check these[^] for starters, also MSDN has documentation regarding the Socket class here[^].

- Nick Parker
My Blog | My Articles

Override Background Image property

lmaks30-Nov-04 1:19

lmaks

30-Nov-04 1:19

Hi
The RichTextBox control doesn't have a BackgroundImage property. I read in the msdn library that this property can be overriden, but there's no examples.

Can u tell me what 2 do with this problem??

Thanx

Re: Override Background Image property

Daniel Turini30-Nov-04 2:28

Daniel Turini

30-Nov-04 2:28

Read more about it here[^]

Yes, even I am blogging now!

Controls appear black after locking computer

sommarafton30-Nov-04 0:10

sommarafton

30-Nov-04 0:10

Hi,

I have a problem with controls in window forms.
The controls are embedded in a window desktop application where notify windows are popping up
at certain times (based on a timer). The windows stay on the desktop until the user is closing them.

Here is the problem:
Controls of windows (the window forms contain a label and a pictureBox) which are popping up when the computer is locked appear in black. As soon as I change the size of the window (they are sizable window forms), the controls are displayed properly again.

Does someone have an ideas why this happens and how I can fix my code?

Thank you a lot!

Re: Controls appear black after locking computer

Alex Korchemniy30-Nov-04 8:30

Alex Korchemniy

30-Nov-04 8:30

Strage bug. I bet the bug is very small. If you really can't figure it out you can try to catch the session events.

First you need to register for the events. Make sure you are running on XP. Use this:

[DllImport("Wtsapi32.dll")]<br />
extern public static bool WTSRegisterSessionNotification(IntPtr handle, double flags);<br />
<br />
[DllImport("Wtsapi32.dll")]<br />
extern public static bool WTSUnRegisterSessionNotification(IntPtr handle);

Override the WndProc method in your window kinda like this:

protected override void WndProc(ref System.Windows.Forms.Message m)
{
	switch(m.Msg)
	{
              case (int)WM_WTSESSION_CHANGE:
//            switch(m.WParam)
// DO check for all types of changes
        }
}

To make life easier here are my constant definitions:

public const int WM_WTSSESSION_CHANGE = 0x02B1;<br />
public const int WTS_CONSOLE_CONNECT = 0x1;<br />
public const int WTS_CONSOLE_DISCONNECT = 0x2;<br />
public const int WTS_REMOTE_CONNECT = 0x3;<br />
public const int WTS_REMOTE_DISCONNECT = 0x4;<br />
public const int WTS_SESSION_LOGON = 0x5;<br />
public const int WTS_SESSION_LOGOFF = 0x6;<br />
public const int WTS_SESSION_LOCK = 0x7;<br />
public const int WTS_SESSION_UNLOCK = 0x8;

This posting is provided "AS IS" with no warranties, and confers no rights.

Alex Korchemniy

Re: Controls appear black after locking computer

Brian Delahunty30-Nov-04 9:50

Brian Delahunty

30-Nov-04 9:50

You could try subscribing to the Paint event and calling this.Invalidate() in the event handler.

The Paint event is fired when you uplock the screen.

Regards,
Brian Dela Smile | :)

Now Bloging![^]

Convert to DateTime

ongo30-Nov-04 0:06

ongo

30-Nov-04 0:06

Hi,
I need to convert string in specific format to DateTime structure.
I tryed following code but it throws exception.

string text = "4113013050";<br />
string format = "YMMddHmmss";<br />
DateTime dateTime =  DateTime.ParseExact(text,format,null) ;<br />
textBox1.Text = dateTime.ToString();

Can somebody tell me what am I doing wrong. Thanks

Salut!

Re: Convert to DateTime

Sven Cipido30-Nov-04 0:58

Sven Cipido

30-Nov-04 0:58

Hi,

The error you got is : String was not recognised as a valid date.

What I had to do is the reformat the string in this string :

string text = "2004-11-30 13:05:01";

I'm not sure from where the text value comes. But you could use other wyas to do this.

Re: Convert to DateTime

sommarafton30-Nov-04 2:32

sommarafton

30-Nov-04 2:32

Hi,

you could do it with the Converter class instead:

Convert.ToDateTime(string yourString);
or with a customised format
Convert.ToDateTime(string yourString, System.IFormatProvider yourFormat);

Cheers,
sommarafton

Re: Convert to DateTime

Skynyrd30-Nov-04 9:01

Skynyrd

30-Nov-04 9:01

That format will never work and I would be surprised if u can find anyway to parse it.

Problems:

1: Years cannot be specified by one digit. How is the computer suposed to know if its 2004, or 2014 or even 1914. U need at least 2 digits and better if u use all 4 (2000 should have taught us that by now)

2: Same happens with the hours. No matter if u use the 12 hour AM/PM format or 24 hours, time can get to two digit values (11 PM / 23).

Ur parsing would work if u can get ur date to follow a "YYYYMMddHHmmss" pattern and will probably also work with a "YYMMddHHmmss" pattern although i'd go for first.

Convert 1,2,3.. to A,B,C...

Jan R Hansen29-Nov-04 23:47

Jan R Hansen

29-Nov-04 23:47

Hi,

I need to convert column numbers like Excel does (i.e. A,B,C...Y,Z,AA,AB,AC,...). There has to be something clever I can do. Do I have to make my own ICustomFormatter..something-something implementation, og is it possible to trick String.Format(...) into working on a custom number-base (i.e. not base 2,10 or 16, but my "custom A-Z base 26 without numbers first" Smile | :)

) ?

Any ideas ?

[edit]

I consider it close to cheating to use any offset-indexing between char codes and the numbers Poke tongue | ;-P

- but that might work as well, though..

[edit no. 2]
Realizing that the above edit wasn't that bad anyway, I made this:
public static string ColumnNumberToText(long columnNumber)
{
// convert from 1,2,3.. to A,B,C..
// we have 26 letters
char firstletter = ' ';
if (columnNumber > 26)
{
firstletter = (char)((columnNumber / 26)-1 + 65);
}
char remainder = (char)(((columnNumber-1) % 26) + 65);
return firstletter.ToString() + remainder.ToString();
}

- and it works from 1 to 701 giving me A,B,C...AA,AB,AC,,,ZX,ZY
But not with 702 which should give ZZ - but gives [Z

I see that the "firstletter" asignment returns 27 for the division of 702/26 which in turn gives char code 91, being a '['

But how can I fix that ?

Do you know why it's important to make fast decisions? Because you give yourself more time to correct your mistakes, when you find out that you made the wrong one. Chris Meech on deciding whether to go to his daughters graduation or a Neil Young concert

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