C# Discussion Boards - CodeProject

Re: Change decimal symbol

Colin Angus Mackay6-Aug-04 10:48

Colin Angus Mackay

6-Aug-04 10:48

It is not too different from the code I provided above

CultureInfo ci = new CultureInfo("en-US");
NumberFormatInfo nfi = ci.NumberFormat;
double myParsedDouble = myDouble.Parse(txtMyTextBox.Text, nfi);

As the US English Culture already has the correct number format for parsing 1.2 as six fifths rather than 1200 you don't need to create a clone of NumberFormatInfo object and modify it.

Does this help?

"If a man empties his purse into his head, no man can take it away from him, for an investment in knowledge pays the best interest." -- Joseph E. O'Donnell

Can't manage to P/Invoke that Win32 API in .NET? Why not do interop the wiki way!

Re: Change decimal symbol

Member 11981926-Aug-04 12:32

Member 1198192

6-Aug-04 12:32

Well Colin that sure would help. Really thank you for that help. Actually quite stupid from me that I have not noticed that to Parse could be passed a CultureInfo too. Really much obliged Smile | :)

Re: Change decimal symbol

Dave Kreskowiak6-Aug-04 7:41

Dave Kreskowiak

6-Aug-04 7:41

Opps... Might have helped if I actually read into the System.Globalization namepsace first...

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

How can i capture video

Member 12810976-Aug-04 6:45

Member 1281097

6-Aug-04 6:45

1)when i use c# How can i take photo from my webcam ?
2)When i use c# What code do i have to write for entering button on the winamp?(For example i open the winamp program from C# and i want to use winamp program after i write the code in the c# i will enter the button it will play.)

Transparent Panel

kbson16-Aug-04 6:27

kbson1

6-Aug-04 6:27

I can't believe I can't make a panel transparent, Mad | :mad:

I've spent a good couple of hours this morning, if I set the panel to transparent what seems to happen is the panel is drawn with the same color as the form which is ok, but if I have other stuff behind the panel that I want to show throught the panel, then I can't see those controls.

Any help is appretiated.

Re: Transparent Panel

Not Active6-Aug-04 10:14

Not Active

6-Aug-04 10:14

You have to set the panel order to background or drop the controls you want to show through in the panel.

Re: ORACLE: TNS Packet Writer Failure w/ ADO. NET

Dave Kreskowiak6-Aug-04 7:26

Dave Kreskowiak

6-Aug-04 7:26

I'm no expert in Oracle, but my first guess would be to remove the colons you put in the parameter names.

cmd.CommandText = "SELECT * FROM USERS WHERE USER_ID = pUserId"
cmd.Parameters.Add( new OracleParameter( "pUserId", OracleType.VarChar )).Value = "[USER_ID]" )

Putting "special" characters in an identifier is just not a good idea in any language.

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

Re: ORACLE: TNS Packet Writer Failure w/ ADO. NET

Nick Parker6-Aug-04 7:28

Nick Parker

6-Aug-04 7:28

This question belongs in the Visual Basic / VB.NET[^] forum.

- Nick Parker
My Blog | My Articles

creating a vu-meter

gumigyuri6-Aug-04 5:00

gumigyuri

6-Aug-04 5:00

Hi@all,

I would like to create a Vu-meter application in C# to display for any sound that goes to the sound card ,but I don't know how D'Oh! | :doh:

Can anyone help me on how to capture the sound and make the app. work Wink | ;)

?
code?

Thanx.

Converting from a Byte Array to an int / double

bob rt456-Aug-04 4:58

bob rt45

6-Aug-04 4:58

I'm relatively new to C#.

I need to find a way to convert a section of a byte[] to an double or convert to an int if required.

In C++ I would use the algorythms below but I don't know how to express this in a form that c# is happy with.

for an int

BYTE dBytes[4];
int ret = *(int*) dBytes;

for a double

BYTE dBytes[8];
int ret = *(int*) dBytes;

Re: Converting from a Byte Array to an int / double

MicrosoftBob6-Aug-04 5:15

MicrosoftBob

6-Aug-04 5:15

Check out System.BitConverter.

Thanks That's it

Bob rt456-Aug-04 5:34

Bob rt45

6-Aug-04 5:34

Brilliant, Thats exactly what I was looking for.

Device

sreejith ss nair6-Aug-04 3:26

sreejith ss nair

6-Aug-04 3:26

hi,

i want to do some device related application using C#(say for eg. TAPI).

Any article or books for this ???

**************************
S r e e j i t h N a i r
**************************

Re: Device

Dave Kreskowiak6-Aug-04 3:46

Dave Kreskowiak

6-Aug-04 3:46

You're going to have to be alot more specific about what your trying to do.
Define "device related" and what device?

C# and VB.NET are too high level for efficient device driver work...

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

Re: Device

Nick Parker6-Aug-04 3:59

Nick Parker

6-Aug-04 3:59

Have you searched the Internet yet? There is a project on GotDotNet using TAPI in C#, there is also this book too: Network Programming in .NET[^]

- Nick Parker
My Blog | My Articles

Re: Device

Michael P Butler6-Aug-04 5:07

Michael P Butler

6-Aug-04 5:07

The best resource on TAPI and C# is here on GotDotNet[^]

IMO. TAPI and C# aren't a good mix. It just adds an extra layer of complexity. Unless you are well versed with TAPI, I'd say clear of trying to use it through C#.

Michael

CP Blog [^]

Form location

the last free name6-Aug-04 2:30

the last free name

6-Aug-04 2:30

Is it possible to set the location of a main form within the screen to the same position every time the app is started?

The propertie Form.StartPosition seems to make little difference.

I read/write the forms size from the registry, but without controling it's start position it's only half a job.

Re: Form location

Nick Parker6-Aug-04 3:28

Nick Parker

6-Aug-04 3:28

Make sure you set the Form.StartPosition equal to FormStartPosition.Manual, then you can specify the Top and Left positions. Persist this value where ever you like (database, XML, config) and set properly at runtime.

- Nick Parker
My Blog | My Articles

Re: Form location

the last free name6-Aug-04 3:40

the last free name

6-Aug-04 3:40

Thanks for the quick reply.

I found the Control.Bounds property and set this in the load event. Seems to work just fine.

Again: Reflection and array´s...

Norman-Timo6-Aug-04 2:27

Norman-Timo

6-Aug-04 2:27

Hello everybody!

My problem is to get/set individual array items which are instanced via reflection.

To give you an overwiew here´s some code:

***************************************************

System.Reflection.Assembly assembly;
assembly = System.Reflection.Assembly.LoadFrom(dllfilename);

foreach(Type assemblyType in assembly.GetTypes())
{
if (assemblyType.IsClass)
objInstance = Activator.CreateInstance(viptype);

foreach(FieldInfo f in objInstance.GetFields(BindingFlags.Public | BindingFlags.Instance))
{
if (f.FieldType.IsArray)
{
// read every array value!
// f.GetValue(objInstance) returns only a complete value (and I don´t know how to handle this)
// How can I access to every array item itself???
}
else
{
// do something different. This is working fine!
}
}
}

*************************************************

And the source from the assembly looks something like that (extremely shortened, but same structure):

************************

public class myClass
{
public int ID;

// Test
public int Test;

// Array
public int array[15];
}

************************

How can I get in the source at the top for example the 10th integer of the array?

Please help me
Norman-Timo

Re: Again: Reflection and array´s...

Nick Parker6-Aug-04 3:12

Nick Parker

6-Aug-04 3:12

Norman-Timo wrote:
How can I get in the source at the top for example the 10th integer of the array?

It is reflecting against what was just loaded into memory, there will be no value in the 10th position of the array.

- Nick Parker
My Blog | My Articles

Re: Again: Reflection and array´s...

leppie6-Aug-04 5:06

leppie

6-Aug-04 5:06

Use the methods as given in the Array base class, or access it via the "Item" property.

^{top secret xacc-ide 0.0.1}

MDI Child Window Sizing

James Spibey6-Aug-04 1:13

James Spibey

6-Aug-04 1:13

Hi,

I have an app which consists of a Main Window and 10 or so client windows. However, I need the app to work like an SDI in that only one window is visible at a time and that window should be maximized.

If I set all my child windows to have WindowState.Maximized this kind of works, but after switching windows 4 or 5 times, I end up with all the windows showing but not maximized.

I have tried various things including overriding OnActivated, OnResizing, OnSizeChanged and changing the windowstate and window size but none seem to work.

Where should I be looking? Is this controlled by the child forms or the MDI Parent?

Thanks for any help

Cheers

James

How to find File from C# code

Member 12499155-Aug-04 23:41

Member 1249915

5-Aug-04 23:41

My client had a app running in his system. I have to know the
physical path of the file.

Re: How to find File from C# code

Nick Parker6-Aug-04 3:04

Nick Parker

6-Aug-04 3:04

Do you only know the file name itself, no path information is known at all? You could write a simple recursive method to find all files from the root. More information would be helpful.

- Nick Parker
My Blog | My Articles

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