The class below is a proxy (or wrapper) for making oledb calls.
You can use std sql scripts.
Just make sure that you have the appropriate connection string for your db.


using System;
using...

Hi,

I have an application where i want a datagridview to treat single mouse clicks as if they are ctrl_clicks. IE I when a user clicks on a row, the rows state is togled (eg not selected to...

have a look at http://en.wikipedia.org/wiki/Compiler

Its actually a theoritical question. You are not required to write any code to solve it.

However, it can also be proven with actual code & appropriate data.

You need to be able to explain how...

from memory, that exercise is in the chapter on associative arrays.

If you think about how a map (or 2) might be useful, you will find the task much simpler than using vectors.

Your code wont compile as is. What you need to have is


void aFunction
{
A a; // create local auto object on the stack

A* ap = new A() // create object on the heap &...

Why not have your program use cmd line arguments. Then your user can specify the output directiry when invoking the prog.

Eg:

prog "D:\output Dir1"

would inform the program to write the...

Why not use the assignment operator rather than the CopyPerson() method?

Actually most classes will work perfectly will with the compiler generated copy constructor, destructor & assignment...

you definitely have a config problem. Your path is wrong &/or dev c++ isnt installed correctly.

some of the following has already been suggested, but ill put it here for completeness anyway.
...

have alook at http://www.gotw.ca/gotw/001.htm

It all depends on what you need.

Your example saves a class (or class hierarchy).
And, it is much simpler than the Factory pattern.
I have used th same thing in quite a few smallish projects.
...

You dont specify how you intend to use the factory. That will play a larg part in choosing a Factory pattern to use. So my comments are fairly general.

The motivation behind Factory, is to put the...

Try changing the first few lines of your code to:

#include <fstream>
#include <iostream>
#include <cstdlib>
#include <iomanip>

using std::ifstream; using std::ofstream;
using...

using everything in a namespace is not a great idea in general, as it negates the benefits that namespaces bring in the 1st place.

It is far better paractice to only include those symbols that you...

The ascii character set assignsg the (256) numbers that can be represented by an unsigned char to display characters. The set runs from 0 - 255. No negatives.

C/C++ uses chars to store ascii...

You program simply ended after the output line. I assume that you were running it directly from the dev environment. If you run it from a cmd shell you will see the output:

Hello World

To add a...

Hi,

I am interested in comments / experience people have wrt writing a tcp server in .net.

We currently have existing an existing server, written in native c++. It communicates with our own...