Re: Global variables or class throughout the application - C# Discussion Boards

13-Dec-07 2:05

You can use pointers in C#. All you have to do is mark a method as unsafe (and change the assembly to allow unsafe code) and you are good to go.

Deja View - the feeling that you've seen this post before.

Serialization

Bhimuni13-Dec-07 1:10

Bhimuni

13-Dec-07 1:10

Can we Serialize the static variables and generic lists ?

B V KIRAN KUMAR

Re: Serialization

Pete O'Hanlon13-Dec-07 1:39

13-Dec-07 1:39

Bhimuni wrote:
Can we Serialize the static variables and generic lists ?

What have you tried? The best way to find something out like this is to write a piece of code that attempts to do just what you have asked. This way, you learn problem solving skills, rather than relying on somebody else to do your thinking for you - especially as they may well end up giving you incorrect information.

Deja View - the feeling that you've seen this post before.

capture drag events in DHTML control

Member 231557413-Dec-07 0:58

Member 2315574

13-Dec-07 0:58

I have hosted a dhtml control on a C# form. I can not figure out a way to catch its text drag events.

WebBrowser Javascript Resize Problem

gopher_uk13-Dec-07 0:06

gopher_uk

13-Dec-07 0:06

I have an application that uses the System.Windows.Forms.WebBrowser control from .net 2.0.

I have noticed that the window does not resize when the window.ResizeTo javascript method is called.

However, when a AxSHDocVw.AxWebBrowser browser component is used instead, the same javascript works absolutely fine - resizing the browser control and the form containing it. I have a demo project that uses both types of controls on the same HTML page and for some reason the Windows.Forms.WebBrowser control just will not pick up the resize event.

This may be related - I've noticed that if you extend both controls, and override WndProc, the AxSHDocVw control will receive messages for WM_WINDOWPOSCHANGING and WM_WINDOWPOSCHANGED but the other control will not.

Does anyone know what the problem is or how to fix it? It is not possible for me to use the AxSHDocVw component instead.

Global variables or class throughout the application

Pankaj - Joshi13-Dec-07 0:02

Pankaj - Joshi

13-Dec-07 0:02

Hello experts,

How can I manage global variables through out the application in C#.Net...?

Regards
Pankaj Joshi

If you want to shape your dreams into reality, please wake-up...

Re: Global variables or class throughout the application

Pete O'Hanlon13-Dec-07 4:03

13-Dec-07 4:03

Use a static class. For instance:

public static class MyClass
{
  public string MyKey = string.Empty;
}

To refer to it in other places, you would use MyClass.MyKey = "Hello";

Deja View - the feeling that you've seen this post before.

Re: Global variables or class throughout the application

Parwej Ahamad13-Dec-07 16:45

Parwej Ahamad

13-Dec-07 16:45

Create a public class named like Global
and make some public static property and access it in application anywhere

Parwej Ahamad
g.parwez@gmail.com

Regular expression : Remove non-numerics

livez12-Dec-07 23:56

12-Dec-07 23:56

Hello!

Ive been trying to make a regular expression remove everything from a string that´s not a numeric d1-10 with comma and d1-2 after. The expression looks like this:^\d{1,10}(\,)?(\d{1,2})?$, and I try to use it like this:

original = Regex.Replace(original, @"^\d{1,10}(\,)?(\d{1,2})?$", "");

but this amounts to nothing. If original for instance would be "345,46 £" I would want the £ and the blankspace removed. Does anyone know what Im doing wrong?

TJoe13-Dec-07 3:09

TJoe

13-Dec-07 3:09

There are a couple problems with your code and regex.

First, the regex will match the correct pattern of 345,46, but only if it's at the beginning and end of the line (because you specify the ^ and $ before and after it). Because your input string has " £" at the end, your regex won't match.

Assuming that "345," is not a valid number, then the "(\,)?(\d{1,2})?" part should be "(,\d{1,2})?". If "345," is a valid number, then the "(\d{1,2})?" part should really be "\d{0,2}". I'm going to assume that "345," is not valid though.

Now, the actual parameters to the Replace method are incorrect also. Assuming you don't have any back references in the "replacement string", then whatever is match will be replaced. So you would be replacing the number, not the "extra" stuff.

Based on this your regex needs to be "^.*?(?<num>\d{1,10}(?:,\d{1,2})?.*?$", and your replacement string needs to be "${num}". This will extract the FIRST number to match the pattern. So in "123,4 dd 567,89", the resulting string will be "123,4".

Basically, we match the entire input string with our regex, but we save the number in the group named "num". Then we reference that group to generate the output.

Take care,
Tom

-----------------------------------------------
Check out my blog at http://tjoe.wordpress.com

livez13-Dec-07 3:43

13-Dec-07 3:43

Thanks alot Tom!

TJoe13-Dec-07 4:15

TJoe

13-Dec-07 4:15

No problem. Please get the regex from my previous post again, though. I forgot to use & l t ; so the <num> part was removed.

Take care,
Tom

-----------------------------------------------
Check out my blog at http://tjoe.wordpress.com

livez13-Dec-07 20:24

13-Dec-07 20:24

Hi again!

I´ve tried your example but cant quite get it to work. In its original form I get an error message, "Not enough )'s". If I alter the regex to look like this

original = Regex.Replace(original, @"^.*?(?<num>\d{1,10}(?:,\d{1,2})?.*?$)", "${num}")

nothing happens with my string.

TJoe14-Dec-07 1:56

TJoe

14-Dec-07 1:56

Sorry, the missing paren goes before the last .*?, so:

^.*?(?<num>\d{1,10}(?:,\d{1,2})?).*?$

Take care,
Tom

-----------------------------------------------
Check out my blog at http://tjoe.wordpress.com

livez14-Dec-07 2:12

Vista: The requested operation requires elevation

14-Dec-07 2:12

Working now, excellent!

MAC ADDRESS

sindhutiwari12-Dec-07 23:23

sindhutiwari

12-Dec-07 23:23

Hi
Few question if any one knows answer plz let me know

1. What is MAC address ?
2. Is it unique to every system in a network
3. How to know the MAC Address of Clients System.
4. If Q2 answer is yes then how to find all the MAC address of the ' Systems connected in a network using C# code

Plz if any idea also share with me
REGARDS
Tiwari

its me sid

Re: MAC ADDRESS

N a v a n e e t h12-Dec-07 23:34

N a v a n e e t h

12-Dec-07 23:34

sindhutiwari wrote:
1. What is MAC address ?

MAC address - Wikipedia[^]

sindhutiwari wrote:
2. Is it unique to every system in a network

Yes

sindhutiwari wrote:
3. How to know the MAC Address of Clients System.

Goto command prompt and type ipconfig/all

sindhutiwari wrote:
4. If Q2 answer is yes then how to find all the MAC address of the ' Systems connected in a network using C# code

Use ManagementClass in System.Management

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia

My Website | Ask smart questions

Re: MAC ADDRESS

sindhutiwari13-Dec-07 0:03

sindhutiwari

13-Dec-07 0:03

Thanks for ur reply i am having a code to know the mac address ...i am getting the mac address of my system along with that i am getting some other things also please see to this and help me out

ManagementObjectSearcher query = null;
ManagementObjectCollection queryCollection = null;

query = new ManagementObjectSearcher("SELECT * FROM Win32_NetworkAdapterConfiguration");

queryCollection = query.Get();

foreach (ManagementObject mo in queryCollection)
{
if (mo["MacAddress"] != null)
{
MessageBox.Show(mo["MacADDress"].ToString());
}

}

its me sid

Re: MAC ADDRESS

benjymous13-Dec-07 3:29

benjymous

13-Dec-07 3:29

It should be noted, however, that it's possible to spoof a computer's MAC address, so two systems could be given the same address. However, this would cause all sorts of networking problems.

--
Help me! I'm turning into a grapefruit!
Buzzwords!

Stevo Z12-Dec-07 22:54

Stevo Z

12-Dec-07 22:54

Hi guys,

I have a C# 2.0 project in VS 2005 under Vista. When I try to debug it, it throws Error:
The requested operation requires elevation

I can build it and when run from .exe it throws the UAC dialog.

I don't know what's so special about this project that it needs to be run under administrator rights. It is a regular win app with one attached dll. That attached dll is used in other projects too, which don't demand "elevation". I know I could probobly use the mt.exe utility but I don't want to, because there is no reason to bother user with aksing for administrator rights that are not required for this app.

any ideas?

zilo

Debug

ellllllllie12-Dec-07 22:46

ellllllllie

12-Dec-07 22:46

hello,
how can i write the debug trace to a log file
regrads

dghdfghdfghdfghdgh

Re: Debug

Pete O'Hanlon12-Dec-07 23:01

12-Dec-07 23:01

One way to do it would be to use the TraceListenerTextWriter class. This[^] sample shows you how.

Deja View - the feeling that you've seen this post before.