Tag Archives: random

Draw ransom note text in a RichTextBox in C#

Posted on April 23, 2018 by Rod Stephens

This example is similar to the post Draw ransom note text in C# but it writes text into a RichTextBox instead of on a PictureBox. This has the following advantages. The code is simpler The RichTextBox can arrange text more … Continue reading →

Posted in graphics, strings | Tagged C#, C# programming, example, example program, font, graphics, random, random color, random font, ransom note, ransom note text, strings, Windows Forms programming | Leave a comment

Draw ransom note text in C#

Posted on April 22, 2018 by Rod Stephens

This example draws each of the characters in a string in a different random font to produce a ransom note text effect. The program starts by using the following code to create arrays holding font names and brushes from which … Continue reading →

Produce a repeatable series of “random” numbers in C#

Posted on July 25, 2017 by Rod Stephens

The Random class can generate a series of pseudo-random numbers. They’re called “pseudo-random” rather than “random” because the numbers are generated by a mathematical algorithm rather than by some completely unpredictable process such as observing a source of radioactive decay … Continue reading →

Posted in algorithms, mathematics | Tagged algorithms, C#, C# programming, example, example program, inirialize random number generator, mathematics, pseudo-random numbers, random, random class, random number generator, random numbers, seed, Windows Forms programming | Leave a comment

Make extension methods to generate random double values in C#

Posted on July 5, 2017 by Rod Stephens

This example adds extension methods to the Random class to generate double values within a specified range. The Random class provides methods for generating pseudo-random numbers. The Next method has three overloaded versions that produce a non-negative integer, an integer … Continue reading →

Posted in extension methods, mathematics | Tagged C#, C# programming, example, example program, extension methods, mathematics, NextDouble, random, random class, random numbers, Windows Forms programming | 1 Comment

Make a hangman game in C#

Posted on February 20, 2017 by Rod Stephens

Special thanks to Jeff Scarterfield for the skeleton drawing used by the program. This example builds a simple hangman game that uses the dictionary created by the example Use LINQ to select words of certain lengths from a file in … Continue reading →

Posted in algorithms, files, games, graphics, strings | Tagged algorithms, C#, C# programming, example, example program, files, games, graphics, hangman, hangman game, random, strings, Windows Forms programming | Leave a comment

Fill a shape with random lines in C#

Posted on June 28, 2016 by Rod Stephens

Click and drag to draw a shape. When you release the mouse, the program closes the shape and fills it with random line segments. The following code shows how the program lets you draw a shape. // The points selected … Continue reading →

Posted in drawing, graphics | Tagged anti alias, anti aliasing, AntiAlias, antialiasing, C#, C# programming, drawing, example, example program, fill shape, graphics, GraphicsPath, random, random lines, SmoothingMode, Windows Forms programming | Leave a comment

Fill an ellipse with random lines in C#

Posted on June 27, 2016 by Rod Stephens

As the title implies, this example draws an ellipse filled with random lines. It cannot simply draw the ellipse in the form’s Paint event handler, however. That would make the program generate a new set of random lines every time … Continue reading →

Posted in drawing, graphics | Tagged C#, C# programming, drawing, example, example program, fill ellipse, graphics, lines, random, random lines, Windows Forms programming | Leave a comment

Generate random data in an Access database in C#

Posted on February 28, 2016 by Rod Stephens

This example shows how you can generate random data for students and their test scores in an Access database. I often build examples that manipulate databases. Those examples are more interesting if the database holds lots of data, but it’s … Continue reading →

Posted in ADO.NET, algorithms, database | Tagged Access, ADO.NET, algorithms, C#, C# programming, database, example, example program, OLE DB, OleDbCommand, OleDbConnection, random, random data, randomization, Windows Forms programming | Leave a comment

Select random objects from an array in C#

Posted on January 12, 2015 by Rod Stephens

This example builds a generic extension method that lets you easily select random objects from an array. The following code shows the extension method and the RandomTools class that defines it. public static class RandomTools { // The Random object … Continue reading →

Posted in algorithms, arrays, mathematics, variables | Tagged algorithms, arrays, C#, C# programming, example, example program, mathematics, random, random selection, select random, select random objects, variables, Windows Forms programming | Leave a comment

Use VBA code to pick random cells from the currently selected cells in an Excel workbook

Posted on September 14, 2014 by Rod Stephens

This example shows how you can use VBA code to pick random cells in an Excel workbook. Sooner or later, many programmers need to write code to control another application such as the Microsoft Office applications, either for their own … Continue reading →