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I did this code to compare to Delphi code in Delphi forum [URL="http://www.daniweb.com/software-development/pascal-and-delphi/threads/357771"]TListBox and sorting[/URL] which ran in my computer compiled in free Lazarus environment at time 7,235 s for generate and insert to listbox, 13,265 s sorting the listbox.

Start a new Forms application and fill in the above code in the Forms.cs file. If after startup you drag one of the labels the text of the labels will be copied to the textbox.

Here version of TicTacToe demo [URL="http://www.daniweb.com/software-development/python/threads/357974/1526474#post1526474"]code by wooeee[/URL] with packing style, which is more familiar for me. Also fixed indents and made it run also with Python 3.

This is the simple code to read an image from the database.

This is a simple Search Engine that contains tokenized words as keys, in which they will return values associated with them in an ArrayList. All that is required is a text file from a valid extension.

Add this code any where in your main form and You will be able to disable the [B]X[/B] button on a winForm

The tkSnack sound module was developed at KTH in Stockholm, Sweden. A great module to generate sound, play and analyze sound files and speech. It was written using Tkinter and its native TCL language. Alas, the latest release is from 2005. However, the important file tkSnack.py can be converted to …

We all know that the sum() function in python only takes two arguements, so i created a function in python that will take any number of arguements and add them together, just like the sigma letter in greek. Awaiting your replies on this one.

You can get your hands on to usefull information from within your C# program. Use the static System.Environment class! Take a look at this snippet, which can be used as is in a Console application. I have not exhausted all the possibilities, if you want you can look them up …

I know there are others out there who haven't figured it out yet I figure I'll help out. The code snippet included will over-ride the pre-designed menu highlight. :D Just change the color of the pen or brush to whatever you want the highlight to be. :) All of the …

It solves quadratic equations, for both real and complex roots. Please answer the pol to let me know how I'm doing. This function just needs the python 3.x environment, no modules needed.

Well just run, the only thing is that this is created using python 3.x. no modules required.

This is a program that can calculate, the GPA of a student on a 5.0 scale,it's written in python 3.x and no modules are required.

Gaussian elimination is designed to solve systems of linear algebraic equations, [A][X] = [B] This program reads input from a file which is passed as an argument when calling the program. Say the matrix is in file name matrix.txt so we call the program in this way: ------------------------- gauss matrix.txt …

Crypting with xor allows one to write one function that can encrypt and decrypt a file. In this example a text file is used, but it could be an image file as well. Once you have created the encrypted file you simply send it through the same function again to …

A fun little program that uses your internal motherboard speaker or "Beep" speaker and your keyboard to make a musical instument very similar to a musical KeyBoard.

Alright no more prime number generators I promise, but I had to fix the last one... This one uses the Sieve of Eratosthenes algorithm. It can generate prime numbers even faster, than the previous version. 1 million prime number in 2,331 second, ten million prime number in less than 22 …

This is an answer to a question in C++ area. [url]http://www.daniweb.com/software-development/cpp/threads/355232[/url] It should be ready to be modified to code in C++, C#, or Java, because VB.Net is fully OOP. Even though it can be used for vectors, you may still want to modify it to a Vector Class.

[I]<<mod edit: answer to [URL="http://www.daniweb.com/software-development/python/threads/32007/1496502#post1496502"]this post[/URL] from the sticky "[URL="http://www.daniweb.com/software-development/python/threads/32007"]projects for the beginner[/URL]">>[/I] [CODE] #1 * 8 + 1 = 9 #12 * 8 + 2 = 98 #123 * 8 + 3 = 987 #1234 * 8 + 4 = 9876 #12345 * 8 + 5 = 98765 #123456 …

With ListView and ListBox, you can have multiple selections when you set the property to do so. There are different ways to delete all selected items from a ListView and ListBox, right or wrong. I have some lessons learned on the topic. (1)Use For Each loop in ListView. (It works) …

This snippet is to create a user control that will only take numbers. Numbers will accept decimal values, for which the NumberBox is validated to take only one. The implementation for the control is the same as it is for the TextBox, since it is inherited from this class and …

This snippet shows how to use Mutex to prevent multiple copies of your software from running. For a WinForms application, this code goes into the Program.cs file. The magic starts in line 14 where we attempt to create a Mutex. A Mutex is a form of a lock, but it …

Not my code but I think free to share. This is intended as beginning point of learning classes or learning data structures. Read the document [url]http://mcsp.wartburg.edu/zelle/python/python-first.html[/url] As first exercise, this does not work instead of the while loop in test part: [CODE] for i in numbers: print i [/CODE] [QUOTE] …

This is a function that will find the factors of a given number for you. EDIT: Better algorithm using vectors (thanks all at cprog :) )

This Python snippet shows you how to take typical beginner's example of prime number function and work on improving its speed. The decorator function for timing is ideal tool to follow your progress you make. The improvements are commented and you are encouraged to make further improvements. Python is fun!

This seems to come up every so often, so thought I would add it here so people can have a look if they search the site. Reading and writing to a text file is a very basic thing in C#, most of us have to do it from very early …

The DataGridView class is huge and complex. It is a beast I'm still struggling with, but once you learn to comprehend it, I find it most rewarding! Some try to circumvent it by using listboxes and the lot. Why don't get your feet wet with this as basic as it …

Validation whether a string can be parsed to a valid date according to a supplied formatting string (which should conform to the formatting rules as supplied in DateFormat). This version can also flag dates in the past as error (we need that because many of our applications should accept only …

Hi guys The just of what i whant to do is read lines of text from a file until it reaches a delimiter and then execute that text in a query and repeat the process till there is no more text. I am using Delphi 6(don't have a choice) and …

Solves simple string-based expressions. Currently only supports integers, but can easily be expanded to support float-types.

A simple streaming server-client pair with non-blocking user input can easily be coded in Python by using the 'select' module that provides a straightforward interface to the Unix select() system call. For Windows users however this is not an option as the acceptance of three empty sequences in the conventional …

Hey people! I was just surfing around the threads here, and found one asking for how to make a Installer-like GUI ([url]http://www.daniweb.com/forums/post1492819.html[/url]). I've replied there, but I think that is nice to have this on our code database. To start, let’s make na empty Project. Add a TabControl to it. …

I am afraid, I am starting to like C#, despite the somewhat bloated .Net Framework requirements. Mister Bill's Microsoft is very supportive though. The language has a nice flow compared to GUI programming in C++. Here we are looking at a standard ListBox, add some items, sort them and select …

The past few days I've posted some sorting routines customized to the tasks they were required to solve. Since I have a bunch of different sorting routines already coded, I decided to post them. Please note that some of these sorts are fast, but not a single one is as …

When Microsoft was developing Windows Vista (and they continued this in Windows 7) they decided to add a security feature to the Program Files directories. This feature is that all the directories are read only. The idea behind this is to prevent malicious software from overwriting your exe/dll files. This, …

This snippet defines a function [icode]a2bits[/icode] which converts a characters string to a string of 0's and 1's showing its bitwise representation.

Generating permutations of a sequence is a problem that is commonly asked. It's fairly easy to do if you know how many items will be used beforehand, but a generic method to do so would be better. The snippet will do a lazy generation of the permutations (the next one …

i dont normally work in the console/terminal window in my day job. so, i keep rewriting this every time i respond to someone needing help related to getting user input. im putting it here partly so i dont have to keep rewriting it. this function will get a string input …

Here is simple C program for analog clock. Comipler: TurboC

The simplest sort, although inefficient. Below is a demonstration of bubble sort and insertion sort. The bubble sort just consists of 2 for loops and std::swap. The insertion sort uses 2 loops as well but not as much swap as bubble sort. Any questions ?

Code shows how to bind the data from a database`s table to dataTable and populate dataGridView with it. And then how to pass the modified (or not) data from dataGridView back to dataBase`s table.

Here we experiment with a gauge or progress bar made from a label displaying a variable number of spaces in color. In this example, we use from 0 to 100 spaces. This label based gauge allows you to choose many different colors, and you can even change the color as …

I had posted here already here to forum a [beautiful code for solving Sudoku puzzles](http://www.daniweb.com/software-development/python/code/294304/eleagant-and-fast-sudoku-with-generator-expressions), so I was in kind of dilemma what to do, as I read the task to do a sudoku solve as one task in Project Euler. To use the code from before and just take …

Saw somebody was viewing this thread and thought the qrange needed one update. From post [url]http://www.daniweb.com/code/snippet216627.html[/url].

Simple script for image transparency. Someone asked one some time ago, and i had other but for a different system, and decided to write a Python/PIL version. The value of the color used as transparent is the value of the pixel at position (0, 0). You can adjust tolerance value. …

Here is my newest version of the pretty printer I posted earlier. Not doing all that fancy stuff of printing looped recursive structures, but if you put one deeper structure inside flat one, works better for me than pprint module. I do not use often object oriented structures though. Dedicated …

Sometimes we need to generate sequence and perform some process on the results. This usually results in some code like this (We'll be using the [URL="http://en.wikipedia.org/wiki/Fibonacci_number"]Fibonacci sequence[/URL] in these examples): [code]void MyMethod() { // What we want to do is output to the screen the first 10 Fibonacci numbers // …

The code gets all the files (only names, if you want to get the paths too, simply remove for loop (its only one) from the code. Files are stored into a generic list. Mitja

well am using the turbo c++ compiler , so you must convert it to cpp ( c++) before u can use it ok. here we go. steps: (1)press the windows shortcut key and hold R or go click on RUN (2) type in the following( C:/TC/BIN/TC.EXE) hit ENTER, wait for …

This is just a simple password program...