C# Discussion Boards - CodeProject

17-Jul-08 1:51

onakar wrote:

void w1_DataArrival(int Len)
{
String data = "";
dat = new object()data;
len = (object)Len;

w1.GetData(ref dat, dat, len);
data = (String)dat;
}

WTF?

xacc.ide - now with TabsToSpaces support
IronScheme - 1.0 alpha 4a out now (29 May 2008)

Copy Byte []

half-life16-Jul-08 23:05

16-Jul-08 23:05

Hi,

i have an byte array
i would like to copy from position 7 to 24 to an new byte array

is there a simple way to do it or i'll have to copy each byte ??

Smile | :)

Have Fun
Never forget it

originSH16-Jul-08 23:22

originSH

16-Jul-08 23:22

Have a look at the documentation for the Array[^] class.

half-life17-Jul-08 3:26

17-Jul-08 3:26

THANKS

Have Fun
Never forget it

DaveyM6916-Jul-08 23:25

DaveyM69

16-Jul-08 23:25

Array.Copy(array1, 7, array2, 0, 18);

Dave

half-life17-Jul-08 0:42

17-Jul-08 0:42

THANKS a lot Smile | :)

Have Fun
Never forget it

Guffa17-Jul-08 1:33

Guffa

17-Jul-08 1:33

This is the second question today about something that can easily be found in the documentation or on the web (search for "c# format binary string" and "c# copy part of array" to get the solutions as the first hit). You really should learn how to use google and MSDN Library, and save your forum posts until you need them. Smile | :)

Despite everything, the person most likely to be fooling you next is yourself.

half-life17-Jul-08 5:32

17-Jul-08 5:32

I Will,
Taken in notice Smile | :)

Have Fun
Never forget it

leppie17-Jul-08 2:03

Attempted to read or write protected memory. This is often an indication that other memory is corrupt.

17-Jul-08 2:03

System.Buffer.BlockCopy()

xacc.ide - now with TabsToSpaces support
IronScheme - 1.0 alpha 4a out now (29 May 2008)

ASysSolvers16-Jul-08 23:03

Re: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.

16-Jul-08 23:03

In my application I have hooked the keyboard.Global hooked and in one function im getting a error saying..

“Attempted to read or write protected memory. This is often an indication that other memory is corrupt.”

It comes from this code statement,

return CallNextHookEx(hookID, nCode, wParam, ref lParam);

[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode,
IntPtr wParam, ref KBDLLHOOKSTRUCT lParam);

This cause to carshed my application. And Can U explain to overcome this issue.

leppie17-Jul-08 1:58

Re: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.

17-Jul-08 1:58

ASysSolvers wrote:
This cause to carshed my application. And Can U explain to overcome this issue.

Yes, you are having a buffer overflow/overrun in your unmanaged code.

xacc.ide - now with TabsToSpaces support
IronScheme - 1.0 alpha 4a out now (29 May 2008)

ASysSolvers17-Jul-08 2:38

Re: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.

17-Jul-08 2:38

Yes it is true. I have a grabber control to play TV stream. it a .ocx control.

Can U explain how we design a apllication for that kind of issues..

Thankz

leppie17-Jul-08 3:08

17-Jul-08 3:08

ASysSolvers wrote:
Can U explain how we design a apllication for that kind of issues..

Attach an unmanaged debugger and look for the error. Your structs that you pass to the unmanaged function is probably incorrect/too small/misaligned etc. I cant help you on that.

xacc.ide - now with TabsToSpaces support
IronScheme - 1.0 alpha 4a out now (29 May 2008)

webBrowser control

mahmoud wafy16-Jul-08 22:58

mahmoud wafy

16-Jul-08 22:58

hi,

I will generate HTML file at Run Time based on setting that end user entered ,
how to add refrence to css file at run time I using webBrowser control.

Thanks. Smile | :)

Wafy

Re: webBrowser control

leppie17-Jul-08 2:02

17-Jul-08 2:02

Use the DOM exposed by the control. You will have to lookup where you need to change that yourself. It is beyond the scope of C#. Try the web forum.

xacc.ide - now with TabsToSpaces support
IronScheme - 1.0 alpha 4a out now (29 May 2008)

Application.Exit()

ASysSolvers16-Jul-08 22:50

16-Jul-08 22:50

In my application I have restricted to the 2nd instant of application giving below code,
s_Mutex = new Mutex(true, "MyApp");
if (s_Mutex.WaitOne(0, false))
{
Application.Run(new frmSocket());
}
else
{
MessageBox.Show("Another instance is running");
}

Also im using a Logoff button in my application and and have used below code,

System.Windows.Forms.Application.Exit(); System.Diagnostics.Process.Start(System.Windows.Forms.Application.ExecutablePath);

Problem when I press log off button it cause to 2nd instant ans show the message ("Another instance is running")

I want to run appication again beeing restricting 2nd instant.
How ovecome that issue.

Re: Application.Exit()

Giorgi Dalakishvili16-Jul-08 23:33

Giorgi Dalakishvili

16-Jul-08 23:33

You need to close mutex when you no longer need it.
Making the Application Single-instance[^]

Giorgi Dalakishvili

#region signature
my articles
#endregion

Re: Application.Exit()

ASysSolvers17-Jul-08 2:34

17-Jul-08 2:34

Thankz Lot...

i used,

s_Mutex.Close() after Application.Run(.... statement

Grate!!

Datagird issue

Agweet16-Jul-08 22:26

Agweet

16-Jul-08 22:26

Hi all,

im fairly new at c#...im trying to bind data from sql to a label in my datagrid using the labels databindings...wen i add my code:

Text='<%# Databinder.eval(Container.DataItem,"Date") %>'

the app breaks and says: The name 'Databinder' does not exist in the current context...

How do i correct the code to perform this action?

living life on the flip side

Re: Datagird issue

nelsonpaixao17-Jul-08 12:45

nelsonpaixao

17-Jul-08 12:45

Hi,

If you want to learn how to connect to a database from c#, why don´t you watch microsoft Absolute beginners Lessons videos (by Bob Tubor).
Download the SQL Server and C# lessons.
It´s free to download. Big Grin | :-D

webBrowser control

mahmoud wafy16-Jul-08 22:17

mahmoud wafy

16-Jul-08 22:17

hi,

Iam working on windows application (website builder) iam working on webBrowser control ,

I want to add css file(cascading style sheet)for the Html page ,

I Want to make a refrence to css file at run time Please Help me how to do it.

Wafy

[Message Deleted]

stancrm16-Jul-08 22:42

stancrm

16-Jul-08 22:42

[Message Deleted]

Re: webBrowser control

leppie17-Jul-08 2:05