Re: Need vital help about MFC - ADO.Net (SQL connection) - C / C++ / MFC Discussion Boards

Application getting carshed in release mode not in debug, in the follwing scenario

Amrit Agr3-Oct-11 19:49

3-Oct-11 19:49

Hi Developers,
Today I ahve faced a strange issue, that my application is gettong crsshed in release exe but not in debug mode.

The scenario is that i am clicking on the items of a tree controls very rapidly. It is searching functionality & top searched (from the user) has given on the tree. Code of click event of that tree is mapped like this

ON_NOTIFY(NM_CLICK, IDC_TREETOPSEARCH, &CRepLiveSearch::OnClickTopSearch)

And the function is here.

UINT uiFlags = 0;

const MSG* pMsg = GetCurrentMessage();
CTreeCtrl* pTreeCtrl = (CTreeCtrl*)GetDlgItem(pNMHDR->idFrom);

CPoint point(pMsg->pt);
pTreeCtrl->ScreenToClient(&point);
HTREEITEM ht = pTreeCtrl->HitTest(point, &uiFlags);

CString szSelWord = m_suggestionTree.GetItemText(ht);
szSelWord = szSelWord.Left(szSelWord.Find('('));
m_edSearch.SetWindowText(szSelWord);

*pResult = 0;

Can u tell me what may be the problem.

Thanks.
Amrit Agrawal.
Software Developer

Re: Application getting carshed in release mode not in debug, in the follwing scenario

Madhu Nair3-Oct-11 20:23

Madhu Nair

3-Oct-11 20:23

Validate the pointers and HTREEITEM

C++

CTreeCtrl* pTreeCtrl = (CTreeCtrl*)GetDlgItem(pNMHDR->idFrom);
//add this checking
if(!pTreeCtrl)
{
 // Some message and return
}

also

C++

HTREEITEM ht = pTreeCtrl->HitTest(point, &uiFlags);
// add this checking
if (ht != NULL)
{
   pTreeCtrl->Select(ht, TVGN_CARET);
}
else
{
 // Show some error message/return
}

Re: Application getting carshed in release mode not in debug, in the follwing scenario

Amrit Agr3-Oct-11 21:16

Amrit Agr

3-Oct-11 21:16

Thanks a lot Madhu

Re: Application getting carshed in release mode not in debug, in the follwing scenario

Roger Allen4-Oct-11 2:06

Roger Allen

4-Oct-11 2:06

You should also check that the function prototype for CRepLiveSearch::OnClickTopSearch matches the correct signature.

I had issues in the past where this did not match and would crash in release, but work ok in debug

If you vote me down, my score will only get lower

Re: Application getting carshed in release mode not in debug, in the follwing scenario

David Crow4-Oct-11 4:59

David Crow

4-Oct-11 4:59

Amrit Agr wrote:
...my application is gettong crsshed...

Crashed is such a meaningless term without any context.

"One man's wage rise is another man's price increase." - Harold Wilson

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

"Show me a community that obeys the Ten Commandments and I'll show you a less crowded prison system." - Anonymous

Need vital help about MFC - ADO.Net (SQL connection)

symeramon3-Oct-11 10:00

symeramon

3-Oct-11 10:00

Hi there all, I am totaly new to MFC! I have just found a job that I have been dreaming for... But my boss is asking for an C++/MFC(Dialog) sample that connects to SQL and fill the combobox by the data taken from database (Northwind for example)... I know how to do that in C# part but really I have no idea how in C++. Please can somebody help me???

C++ MFC ado ado.net sql connection

Message Removed

3-Oct-11 10:16

TheGreatAndPowerfulOz

3-Oct-11 10:16

Message Removed

Re: Need vital help about MFC - ADO.Net (SQL connection)

symeramon3-Oct-11 11:03

symeramon

3-Oct-11 11:03

Maybe you shouldnt have answered if you dont have one but thanks again for making me remember how cruel will the world be... By the way, do you really think that you know the meaning of the word "vital"??? Maybe you shouldn't!

Message Removed

3-Oct-11 11:19

TheGreatAndPowerfulOz

3-Oct-11 11:19

Message Removed

modified 4-Oct-11 15:38pm.

Re: Need vital help about MFC - ADO.Net (SQL connection)

Richard Andrew x643-Oct-11 11:28

Richard Andrew x64

3-Oct-11 11:28

Didn't you know:

"Insults, slap-downs and sarcasm aren't welcome. Let's work to help developers, not make them feel stupid."

The difficult we do right away...
...the impossible takes slightly longer.

Re: Need vital help about MFC - ADO.Net (SQL connection)

symeramon3-Oct-11 20:36

symeramon

3-Oct-11 20:36

So, this is you ha? Thats it??? Big Grin | :-D

Re: Need vital help about MFC - ADO.Net (SQL connection)

David Crow4-Oct-11 4:51

David Crow

4-Oct-11 4:51

ahmed zahmed wrote:
...you spineless snake.

Two posts in and you've already resorted to name-calling. Amazing. Frown | :(

Re: Need vital help about MFC - ADO.Net (SQL connection)

David Crow3-Oct-11 10:59

David Crow

3-Oct-11 10:59

symeramon wrote:
Please can somebody help me???

If I show you this do I get the job?

Re: Need vital help about MFC - ADO.Net (SQL connection)

symeramon3-Oct-11 11:10

symeramon

3-Oct-11 11:10

Thanks a lot, you are great! but I am sure you'll have better! Smile | :)

Re: Need vital help about MFC - ADO.Net (SQL connection)

Albert Holguin3-Oct-11 15:46

Albert Holguin

3-Oct-11 15:46

HIRED!

Re: How to fill a combo box from a SQL database (c# code)

Software_Developer3-Oct-11 21:11

Software_Developer

3-Oct-11 21:11

This one is in c#. hence c# code is not all that different from c++ code,
just convert..

Populate data from database in a ComboBox (c#)
http://www.codeproject.com/KB/database/comboboxhtmlpage.aspx

Re: How to fill a combo box from a SQL database (c# code)

symeramon4-Oct-11 1:19

symeramon

4-Oct-11 1:19

Thanks, you are so kind...

Re: Need vital help about MFC - ADO.Net (SQL connection)

Erudite_Eric3-Oct-11 23:21

Erudite_Eric

3-Oct-11 23:21

Even if you do get a sample, and convince the guy to give you a job, you will fail in it very soon because you know nothing about C++ and MFC.

And dont hnink because you know C# you can pick up C++.

You are going to be in a world of pain if you take this job. And you are going to damage your reputation when the boss relises what a dishonest liar you are and sacks you.

Get a job that matches your skills. Or learn new skills.

==============================

Nothing to say.

Re: Need vital help about MFC - ADO.Net (SQL connection)

symeramon4-Oct-11 1:15

symeramon

4-Oct-11 1:15

My boss knows everything and I have a little knowledge about C++ , also I have 6 applications in business that I've created... Plus, in the job interview I said to my boss that I have no knowledge about mfc but he said ok cause he is not like "some" others (He believed me)... PLEASE STOP CALLING ME LIAR!!! I just wanted a little help!!! WHAT KIND OF PEOPLE YOU ARE???!!!!!!!!!!! You are liars while you resist to remember your past (I mean your first years in business???) You born with laptops???!!

modified 4-Oct-11 7:34am.

Re: Need vital help about MFC - ADO.Net (SQL connection)

Erudite_Eric4-Oct-11 1:31

Erudite_Eric

4-Oct-11 1:31

Right, so if your boss is happy to let you learn on the job then sit down at a computer with Visual Studio installed, and the MSDN, and go through the MFC tutorials.

You will learn all about creating apps, adding controls, manipulating data and so on.

==============================

Nothing to say.

Re: Need vital help about MFC - ADO.Net (SQL connection)

Snorri Kristjansson4-Oct-11 3:15

Snorri Kristjansson

4-Oct-11 3:15

Try to ignore those A-holes. With 8M+ members quite a few are "less than perfect". I think you are very brave to enter the harsh world of C++, MFC and ADO - coming from your C# background. I wish you well.

Re: Need vital help about MFC - ADO.Net (SQL connection)

symeramon4-Oct-11 4:06

symeramon

4-Oct-11 4:06

Thank you so much for your nice wishes and kindness... Best wishes to you too... Smile | :)

Re: Need vital help about MFC - ADO.Net (SQL connection)

symeramon4-Oct-11 1:18

symeramon

4-Oct-11 1:18

Get a job that matches your skills. Or learn new skills.

By the way, GOOD MORNING!!! That is what I am trying to...

Re: Need vital help about MFC - ADO.Net (SQL connection)

David Crow4-Oct-11 4:56

David Crow

4-Oct-11 4:56

Erudite__Eric wrote:
...what a dishonest liar you are...

How do you know he lied? My very first job out of college I got because I had experience with Pascal on a Unix platform. Shortly after I was hired, my first assignment was a C program on a DOS platform.

Re: Need vital help about MFC - ADO.Net (SQL connection)

symeramon4-Oct-11 5:56

symeramon

4-Oct-11 5:56

Thank you very much David...

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