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Tag Archives: example program
Perform set operations on enumerable lists in C#
To demonstrate set operations, this example creates two lists of Person objects. The Person class implements IEquatable. The code then uses the following code to display the lists and their intersection, union, difference, and exclusive or (xor). // Display the … Continue reading
Posted in mathematics
Tagged C#, C# programming, example, example program, except, exclusion, intersection, mathematics, set operations, sets, union, Windows Forms programming, xor
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Draw a Sierpinski pentagon in C#
In a Sierpinski pentagon, larger pentagons are recursively divided into five smaller pentagons with a sixth uncolored pentagon in the center. The following picture shows the first four levels of the resulting fractal. For this example, I decided to think … Continue reading
Posted in drawing, fractals, graphics, recursion
Tagged C#, C# programming, drawing, example, example program, fractals, graphics, recursion, recursively, Sierpinski pentagon, Windows Forms programming
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The most popular posts at C# Helper over the last 12 months
Just for fun, here’s a list of the C# Helper web site’s most popular posts over the last 12 months. This isn’t “fair” to the most recent posts because they haven’t been posted for as long. I still think it’s … Continue reading
Posted in books, miscellany
Tagged books, C#, C# programming, example, example program, miscellany, popular posts, posts, Windows Forms programming
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Draw ransom note text in a RichTextBox in C#
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
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Draw ransom note text in C#
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
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
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Find duplicate files in C#, Part 4 of 4
The last three posts described an application that searches for duplicate files and removes them. The program seems to work fairly well, at least for small test directories. When I tried it on a directory containing around 8,000 files, however, … Continue reading
Posted in algorithms, cryptography, files, system, tools
Tagged algorithms, C#, C# programming, compare files, cryptography, duplicate files, example, example program, files, find duplicate files, find duplicates, hash codes, hash files, hashing, remove duplicate files, remove duplicates, system, tools, Windows Forms programming
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Find duplicate files in C#, Part 3 of 4
The last two posts described an application that searches for duplicate files and removes them. This post explains how the program removes the files when you click the Delete Selected button. When you click the button, the following code executes. … Continue reading
Posted in algorithms, cryptography, files, system, tools
Tagged algorithms, C#, C# programming, compare files, cryptography, duplicate files, example, example program, files, find duplicate files, find duplicates, hash codes, hash files, hashing, remove duplicate files, remove duplicates, system, tools, Windows Forms programming
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Find duplicate files in C#, Part 2 of 4
The previous post Find duplicate files in C#, Part 1 of 4 explained how the example uses a LINQ query to select files grouped by hash code. This post explains how the program displays the files’ contents and how the … Continue reading
Posted in algorithms, cryptography, files, system, tools
Tagged algorithms, C#, C# programming, compare files, cryptography, duplicate files, example, example program, files, find duplicate files, find duplicates, hash codes, hash files, hashing, remove duplicate files, remove duplicates, system, tools, Windows Forms programming
1 Comment