C# Discussion Boards - CodeProject

Nouman Bhatti8-Jul-07 19:44

Nouman Bhatti

8-Jul-07 19:44

you can search on net for threading details or read some book on it
anyhow see the following links

http://www.codeproject.com/csharp/threader.asp
http://www.albahari.com/threading/

with vs.net 2005 it's more easier to use threads. You just have to drag/drop the backgroundworker control and code on it's appropriate event

devesh_code8-Jul-07 21:26

devesh_code

8-Jul-07 21:26

Thanks. I have done it..

Devesh Mishra

Michael Sync8-Jul-07 20:09

8-Jul-07 20:09

Google with this keyword "C# Multithreading".

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

how to get external ip of my system?

Hesham Yassin9-Jul-07 22:52

Hesham Yassin

9-Jul-07 22:52

search in msdn for Boolean Threading

anu818-Jul-07 19:24

anu81

8-Jul-07 19:24

hi all,

Can anyone help me with the code for getting the external ip of my machine using C# windows application?

Thanks in advance

Regards

Anuradha

Michael Sync8-Jul-07 20:08

8-Jul-07 20:08

What do u mean by external IP?

Is this < How To Get IP Address Of A Machine > what you want?

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

anu818-Jul-07 21:33

anu81

8-Jul-07 21:33

hi michael,

i need to know the external ip given by the ISP provider when connected to the internet.i need the code to achieve this.

Hope i am clear now.

Thanks in advance. Smile | :)

Regards

Anuradha

Michael Sync9-Jul-07 15:48

9-Jul-07 15:48

Have to tried the link above?

I think it should work.

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

Vikram A Punathambekar8-Jul-07 20:11

Vikram A Punathambekar

8-Jul-07 20:11

The first result here[^] looks promising.

Cheers,
Vıkram.

After all is said and done, much is said and little is done.

ruanr8-Jul-07 22:46

ruanr

8-Jul-07 22:46

gotta love google xD

Michael Sync9-Jul-07 15:48

9-Jul-07 15:48

OH. ya..

Thanks and Regards,
Michael Sync ( Blog: http://michaelsync.net)

C# directX how to?

mercenary018-Jul-07 19:00

mercenary01

8-Jul-07 19:00

I just installed directX 9.0 and it sits in the directory DXSDK, how to do set my C# to talk to the directX components???

Thanks

samuel

Re: C# directX how to?

DMWhiteDragon8-Jul-07 19:10

Re: C# ListBox Justify Text [modified]

8-Jul-07 19:10

You asked a mouthfull. And the SDK is more C++ oriented far as when i last checked it out.

In a C# App you can Add Reference..."Microsoft.DirectX" and "Microsoft.DirectX.Direct3DX" (for the version you want to work with)
of course DirectSound etc aswell if you need it.

However if you are wanting to make 3D games using DX then this might be a better starting point:

Microsoft XNA Studio
http://msdn.microsoft.com/xna/[^]

Comes with a space shooter game and all source code in C# all working. Could be eaiser for you if you are new to DX

Other options are less 'clean' for use with C#, but there is alow of code available on the net just google it.

Either way good luck

Always more to learn, and i wouldn't have it any other way.

C# ListBox Justify Text

fjlv20058-Jul-07 17:51

fjlv2005

8-Jul-07 17:51

Good day,

I want to justify the text in my listbox. I've try to insert items in which both have the same length however the amount area won't align considering both items have the same length. How can I make the listbox justify its items so that both amount are on the right edge?
Here is the code that i've tried but items arent justified:

<br />
private void Form1_Load(object sender, EventArgs e)<br />
{<br />
    string stramount1 = "900.00";<br />
    string stramount2 = "3400.00";<br />
    string description1 = "Basic Salary......................"+stramount1; <br />
    string description2 = "Basic Salary....................."+stramount2;<br />
<br />
    listBox1.Items.Add(description1);<br />
    listBox1.Items.Add(description2);<br />
}<br />

thanks.

DMWhiteDragon8-Jul-07 18:23

Re: C# ListBox Justify Text

8-Jul-07 18:23

Simple answer? You dont

You could try measuring the text width and calculate the remaining space and fill it with calulated amount of spaces however you wont be able to get exact alignment as spaces in each font have a set size more than one pixel.

Delete your listbox and add a listview control and use that

You can add columns (so each part has a header), change alignment of each column and its easy to add items:

<br />
ListViewItem MyItem = new ListViewItem(new string[] {"Bob Marley","$10,000"} );<br />
listView1.Items.Add(MyItem);<br />

<br />
string sDescription = "Bob Marley";<br />
string sSalary = "$10,000";<br />
<br />
ListViewItem MyItem = new ListViewItem(new string[] { sDescription, sSalary });<br />
listView1.Items.Add(MyItem);<br />

-- modified at 0:50 Monday 9th July, 2007

Just to be clear, this is all considering there is more than one column... if you just need the salary in there and nothing else and want it right aligned you set the RightToLeft property to Yes. Thought i should cover all bases Smile | :)

Always more to learn, and i wouldn't have it any other way.

Luc Pattyn9-Jul-07 2:28

9-Jul-07 2:28

Hi,

if you really want to do that with a ListBox there are two ways:

1.
select a "non-proportional" font (such as "Courier New") where all characters
have the same width; then adjust the spaces/dots/whatever in your strings so
they all have the same length.

or
2.
Choose to draw the ListBox items yourself, by setting DrawMode to OwnerDraw;
and provide a handler for the DrawItem event (similar to a paint handler when
drawing in say a Panel). You do know the items in a ListBox dont have to be
strings ? They can be instances of whatever class you come up with, and
your DrawItem handler could make use of that...

Smile | :)

Luc Pattyn

try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] }
catch { [Google] }

regarding XML

praveenanand8-Jul-07 17:48

praveenanand

8-Jul-07 17:48

how to insert,update,to fill data to datagrid..using XML?

Re: regarding XML

Sathesh Sakthivel8-Jul-07 17:51

Sathesh Sakthivel

8-Jul-07 17:51

Hope the article by rudy.net here[^] in CP will help you.

Regards,

Satips. Rose | [Rose]

Don't walk in front of me, I may not follow;
Don't walk behind me, I may not lead;
Walk beside me, and just be my friend. - Albert Camus

Timer Class Help

DMWhiteDragon8-Jul-07 16:14

8-Jul-07 16:14

Ok to start i'll tell you what im doing, I have a InterOpWindow class that i created. It basically allows me easy talking between Process's and Thread's allowing me to just send strings all over however i like.

eg, to setup a window to talk to:

<br />
InterOpWindow MyCommandWindow = new InterOpWindow("some_window_name");<br />
MyCommandWindow.evDataCommandRecieved += new InterOpWindow.delDataRecieved(OnDataCommandRecieved);<br />
<br />
static void OnDataCommandRecieved(string sData)<br />
{<br />
	MessageBox.Show("Data: " + sData);<br />
}<br />

and to send data and check a window reference:

<br />
InterOpWindow.SendRemoteMessage("some_window_name", "my data message");<br />
InterOpWindow.CheckRemoteWindow("some_window_to_check");<br />

Nice and easy... just how i like it, im happy i got it working as i've only been C# coding for about 3 weeks heh.

Which is where i come to my problem with the timer class. What i assumed was fine was to keep enabling and disabling it to start and stop the monitoring process for command sending timeouts. However after the timer being used (and working) it seems to be 'dead' if i try to disable then enable it... the Tick event never fires.

Is the object being disposed? does it need a container to stay active? any thoughts would be great...

For now im just leaving it enabled for good and using a var to count around 3 ticks (1 second each) for timeout.

Of course i could have just stuffed up completely and its something small... ya never know Wink | ;)

<br />
public class InterOpWindow : NativeWindow<br />
{<br />
    ...<br />
    private Timer tmrTimeout = new Timer();<br />
    ...<br />
    public InterOpWindow(string sLocalWindowName)<br />
    {<br />
        ...<br />
        tmrTimeout.Tick += new EventHandler(tmrTimeout_Tick);<br />
    }<br />
}<br />

thats basically how i've set it up, any ideas would be great... thanks Smile | :)

Always more to learn, and i wouldn't have it any other way.

Luc Pattyn8-Jul-07 16:48

8-Jul-07 16:48

DMWhiteDragon wrote:
Is the object being disposed?

Good guess. The MSDN documentation on Forms.Timer clearly states on Enabled:
"The timer is not subject to garbage collection when the value is true."

This means there are two ways to keep a Forms.Timer alive (i.e. not collected):
1. make sure it is running
2. make sure to keep a reference to it (in a private member of one of your classes
as opposed to in a local variable of a method that has returned)

Wink | ;)

Luc Pattyn

try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] }
catch { [Google] }

DMWhiteDragon8-Jul-07 17:03

8-Jul-07 17:03

Thanks for the reply, i swear i checked MSDN and google... but ya can't always get a straight thought in ya head when you a little fustrated Wink | ;)

Seems i'll have to keep the way im doing it, as its already a private member of the class and its still being difficult.

I could use the API Timer i guess but that seems messy yes? Is there any other Timers hidden somewhere in this mind bogginly huge framework that might suit?

Always more to learn, and i wouldn't have it any other way.

Luc Pattyn8-Jul-07 17:15

8-Jul-07 17:15

Hi,

1.
There is also Threading.Timer and Timers.Timer; both of them run their handler
on a separate thread, not the GUI thread. And you must keep them alive too.

2.
I fail to see how exactly your timer might be collected: if you are able
to set its Enabled property true again, that means you are holding a reference,
so I believe something else is going on. If you need more help, show us the code !

Smile | :)

Luc Pattyn

try { [Search CP Articles] [Search CP Forums] [Forum Guidelines] [My Articles] }
catch { [Google] }

DMWhiteDragon8-Jul-07 17:29

8-Jul-07 17:29

Well i did some more testing

I moved the class to a new blank project and forced some timeouts and its working fine, enabled/disabled/enabled etc. Go figure :/

So its bound to be something else, i'll get onto the other coders in the project and perhaps break one of their arms for making me think my class was broke Smile | :)

Always more to learn, and i wouldn't have it any other way.

Luc Pattyn8-Jul-07 17:31