Re: Convert C++ to C# - C# Discussion Boards

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Re: A question about how to fill data into DataSet

harry~12-Apr-09 21:11

harry~

12-Apr-09 21:11

This question has been done.Use DataSet's Merge method can do this.thank you.

Always do you best,what you plant you will harvest
later!

Capturing F5 Keypress

ramzg12-Apr-09 20:41

ramzg

12-Apr-09 20:41

Hi,
I am trying to enable the keypress event for 'F5' key to refresh my form... Because I found that the normal KeyPress event does not work for function keys, I tried overriding the PreProcessMessage() function, as follows :

public override bool PreProcessMessage(ref Message msg)
{
try
{
if (msg.Msg == WM_KEYDOWN)
{
Keys keyCode = (Keys)msg.WParam & Keys.KeyCode;
if (keyCode == Keys.F5)
{
//code
}
}
return PreProcessMessage(ref msg);
}
catch (Exception ex)
{
throw;
}
}
But the control never gets into this method... Can anyone help me fix this?

Thanks in advance,
ramzg

Re: Capturing F5 Keypress

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.

Re: Capturing F5 Keypress

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

Re: Capturing F5 Keypress

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

Re: Capturing F5 Keypress

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

Re: Convert C++ to C#

Colin Angus Mackay12-Apr-09 23:33

Colin Angus Mackay

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.

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Re: Convert C++ to C#

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.

Re: Convert C++ to C#

Colin Angus Mackay13-Apr-09 5:12

Colin Angus Mackay

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#.

*Developer Day Scotland - Free community conference Delegate Registration Open

Re: Convert C++ to 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

Re: Convert C++ to C#

Colin Angus Mackay14-Apr-09 4:17

Colin Angus Mackay

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.

*Developer Day Scotland - Free community conference Delegate Registration Open

Re: Convert C++ to C#

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

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

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

Colin Angus Mackay

12-Apr-09 23:31

ypki wrote:
My doubt is that will it be sucess when it upload to the web

Do you mean the internet? I'm being pedantic I know, but the web is just port 80 and 443.

ypki wrote:
Please verify the code for multipe number of client, what will be the approximate limit of clients can connect?

I can't tell you the limit becuase you also need to take in to consideration the power of the server, what the service will actually be doing and so on. If it can't handle the number of clients, can it be scaled out across multiple servers?

*Developer Day Scotland - Free community conference Delegate Registration Open

hi please help me

Denver Thomas12-Apr-09 19:10

Denver Thomas

12-Apr-09 19:10

hi friends ,
is there any free third party grids for editing rows n columns perfectly in FW 3.5. ? Smile | :)

with warm regards OMG | :OMG:

Re: hi please help me

King Julien12-Apr-09 20:01

King Julien

12-Apr-09 20:01

you should do a google.... you will get plenty of results....

Have a Happy Coding.....

Re: hi please help me

Abhijit Jana12-Apr-09 20:03

Abhijit Jana

12-Apr-09 20:03

Denver Thomas wrote:
Subject: hi please help me

This is not the way to ask a question in this forum. Please put proper subject line.

cheers,
Abhijit
CodeProject MVP

Re: hi please help me

Denver Thomas12-Apr-09 20:19

Denver Thomas

12-Apr-09 20:19

sorry bro. yeah I googled it Smile | :)

...have a gr8 day ahead Smile | :)

Download files from a folder with password [modified]

VisualLive12-Apr-09 18:59

VisualLive

12-Apr-09 18:59

Hi All,
i'm looking to store files from a Folder that get a password to enter,this folder get a password (of course i insert the password ) because its deny access and to be canceled from person without permission so i'm looking how download files from that folder with C# .
Before i tried to download files but Visual Studio got an error: "Access Denied"!
Do you have any advice how download files from a Folder with Password or its impossible???
Thanks a lot

Nice Regards.

Smile | :)

EDIT: I forget to post the code snippet how i download files from the folder

  private List<string> GetFolder(string Folder)
    {

        DirectoryInfo dir = new DirectoryInfo(Folder);
        FileInfo[] files = dir.GetFiles("*.mp3",SearchOption.AllDirectories);

        List<string> str = new List<string>();

        foreach (FileInfo file in files)
        {
            str.Add(file.FullName);


        }
        return  str;

    }

 private void Form1_Load(object sender, EventArgs e)
    {
GetFolder(@"D:\\Music\\")
}

modified on Monday, April 13, 2009 2:55 AM

Rich Text Box Change Programatically

TD Hall12-Apr-09 18:40

TD Hall

12-Apr-09 18:40

I have a rich text box in a form. I need to cut a review found on a web site and paste it to the rtb. I can do this without a problem. BUT, how do I change the font of the paste to match the font used on the form?

I have spent several hours trying to do this and have tried to find suggestions/answers on the web. NO LUCK. So I am turning to the experts.

Thanks,

TH

Re: Rich Text Box Change Programatically

King Julien12-Apr-09 20:09

King Julien

12-Apr-09 20:09

This may help you....

Font newFont = new Font(text, Size, FontStyle);
 richTextBox1.SelectionFont = newFont;

call this after you paste data in the RTB.......

Have a Happy Coding.....

How to call begin edit on key press

hirenkshah12-Apr-09 18:38

hirenkshah

12-Apr-09 18:38

Hello sir,

I am using Treelistview C# component in my project,
It is almost finish except (cell)label edit on key press.

Below is brief of my code, I can not send code outside from my office otherwise I could have sent you same code, which I had written.

I wanted to call “begin edit” event, when keyboard key press like ‘F2’
I have tried to update override function call wndproc() of project TreeListview2002.dll
In the region key-Down “BeginEdit ”,
Checking key code is “F2” then
Wrote same thing which is already there in “Beginlabeledit region under notify region.
Get edit handle can call the same wndproc(reff mess)

But it want work, can you help me to complete this Project.

Thanks
hiren shah

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