C# Discussion Boards - CodeProject

S a n d y12-Apr-09 20:49

S a n d y

12-Apr-09 20:49

You should change the keypreview property to true of form. if it is set to false.

ramzg12-Apr-09 20:57

ramzg

12-Apr-09 20:57

Hi S a n d y,
I tried what had posted... But still, the control doesnt get inside the method... Do i have to do something else?

Thanks,
ramzg

12Code12-Apr-09 21:03

12Code

12-Apr-09 21:03

You use the wrong syntax!, the correct syntax is

protected override bool ProcessCmdKey(
	ref Message m,
	Keys keyData
)

Try this:

    protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
    {
        if (keyData == Keys.F5)
        {
            MessageBox.Show("F5 pressed!");
        }
        return base.ProcessCmdKey(ref msg, keyData);
}

Hope this help.

*12Code

ramzg12-Apr-09 21:09

ramzg

12-Apr-09 21:09

Hi 12Code,

Thanks a lot for the help... It is working now... Smile | :)

Thanks,
ramzg

Convert C++ to C#

yesu prakash12-Apr-09 20:35

yesu prakash

12-Apr-09 20:35

Hi,
How can i convert C++ to C# or any other VS languages?

Thankyou
YPKI

Colin Angus Mackay12-Apr-09 23:33

*Developer Day Scotland - Free community conference Delegate Registration Open

12-Apr-09 23:33

ypki wrote:
How can i convert C++ to C# or any other VS languages?

By reading and understanding what the C++ application is doing then re-writing it in C#.

If it is managed C++ then you might be able to run the assemblies through Red Gate's Reflector to see what they produce as it could be a viable shortcut.

Fired.Fish.Gmail13-Apr-09 5:05

Fired.Fish.Gmail

13-Apr-09 5:05

The C plus plus is similar with the C sharp. If this project is not too big, you can create a C sharp project, and then add these C++ files to this project, and comment codes in these files, and then modify format from c++ to C# format one class by one class.

Colin Angus Mackay13-Apr-09 5:12

*Developer Day Scotland - Free community conference Delegate Registration Open

13-Apr-09 5:12

Unless you are using Managed C++ (and even that is stretching things) this is utter rubbish.

C# may have been modelled on a mix of C++ and other languages but its resemblance is only passing. The main difference is that the framework is totally different. This means you have to find equivalents for things that look nothing alike and may operate in different ways.

For example, if you have an MFC application written in C++ using CView and CDocument classes then you will have to re-write those classes as C# has no direct equivalent. And what happens when you have a situation in C++ where there is a lot of low level memory manipulation? You can't do that easily in C#.

Dave Doknjas14-Apr-09 4:14

Dave Doknjas

14-Apr-09 4:14

This is correct - for most of the C/C++ library and for low level memory manipulation you are better off starting from scratch.

However... for the rest there is a fairly logical process for conversion which can be implemented and is implemented in some source code converters.

David Anton
http://www.tangiblesoftwaresolutions.com
Convert VB to C#, C++, or Java
Convert C# to VB, C++, or Java
Convert C++ to C#, VB, or Java
Convert Java to C#, C++, or VB

Colin Angus Mackay14-Apr-09 4:17

*Developer Day Scotland - Free community conference Delegate Registration Open

14-Apr-09 4:17

So, if you strip out the C/C++ libraries and the low level memory manipulation, how much is left? Thinking about my old C++ projects, very little I'd reckon.

data from excel is in the dataset but not displyed in the gridview

Dave Doknjas14-Apr-09 4:28

Dave Doknjas

14-Apr-09 4:28

Not necessarily. Some apps have a lot of internal business logic that isn't library intensive and doesn't have any low level memory manipulation. And some library references which do have direct equivalents are used a lot (STL collections, Math, console IO, etc.).

David Anton
http://www.tangiblesoftwaresolutions.com
Convert VB to C#, C++, or Java
Convert C# to VB, C++, or Java
Convert C++ to C#, VB, or Java
Convert Java to C#, C++, or VB

kapilsahrawat12-Apr-09 19:45

kapilsahrawat

12-Apr-09 19:45

plzzzzz help
I write the code for importing data from excel
as u suggest me via link given by u
I place a grid view , dbl clk it ,place coding in it
replace datagrid with grid view,n bind it.
It runs but does not show any data.
plzzzz help me

Re: data from excel is in the dataset but not displyed in the gridview

Sun Rays12-Apr-09 22:08

Sun Rays

12-Apr-09 22:08

Hi,
what error you are getting ?
Did u try putting Try Catch ?

Thanks,
Sun Rays

To get something you must have to try once.

My Articles

Listening port for many number of clients

yesu prakash12-Apr-09 19:41

yesu prakash

12-Apr-09 19:41

Hi,
I have a listening port and it should handle many number of clients at a time.

When i try with 10-25 clients in LAN, its work fine. My doubt is that will it be sucess when it upload to the web, where many number of users acess the server from diffrent part of the world.

Below code is used to listen as server. Please verify the code for multipe number of client, what will be the approximate limit of clients can connect?

strHostName = Dns.GetHostName();
IPHostEntry ipEntry = Dns.GetHostByName( strHostName );
aryLocalAddr = ipEntry.AddressList;

Socket s_listen = new Socket(AddressFamily.InterNetwork,SocketType.Stream, ProtocolType.Tcp);
s_listen.Bind(new IPEndPoint(aryLocalAddr[0], 400));
s_listen.Blocking = true;
s_listen.Listen(-1);
// Setup a callback to be notified of connection requests
s_listen.BeginAccept(new AsyncCallback(app.OnConnectRequest), s_listen);

-----
public void OnConnectRequest( IAsyncResult ar )
{
Socket lis = (Socket)ar.AsyncState;
NewCon( lis.EndAccept( ar ) );
lis.BeginAccept( new AsyncCallback( OnConnectRequest ), lis );
}

thankyou
YPKI

Re: Listening port for many number of clients

Colin Angus Mackay12-Apr-09 23:31