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Tag Archives: events
Let the user draw lines in C#
This example lets the user click and draw to draw lines. To make working with lines easier, the program uses the following Segment class. class Segment { public Pen Pen; public Point Point1, Point2; public Segment(Pen pen, Point point1, Point … Continue reading
Posted in drawing, events, graphics
Tagged C#, C# programming, draw lines, drawing, events, example, example program, graphics, MouseDown, MouseMove, MouseUp, Windows Forms programming
4 Comments
Make a class define and raise events in C#
This example uses a BankAccount class to manage a bank account (and to show how to define and raise events). If the program tries to remove more money from the account than its current balance, the BankAccount object raises an … Continue reading
Book Errata Page: The C# Helper Top 100
This is the errata page for my book The C# Helper Top 100, The 100 most popular posts at csharphelper.com. If you find mistakes, please post them here in the Leave a Reply box at the bottom of the page. … Continue reading
Posted in .NET, algorithms, books, C#, C# programming
Tagged .NET, algorithms, animation, API, books, C#, C# Helper, C# programming, classes, clipboard, combinatorics, cryptography, curve fitting, dialogs, drag and drop, drawing, events, example, example program, Excel, files, fractals, FTP, graphics, image processing, interop, interoperability, mathematics, multimedia, Office, printing, Rod Stephens, serialization, system, threading, tips, tools, Windows Forms programming
2 Comments
Book Discussion Page: The C# Helper Top 100
This is a discussion page for my book The C# Helper Top 100, The 100 most popular posts at csharphelper.com. Please post questions, thoughts, and suggestions here in the “Leave a Reply” box at the bottom of the page. I … Continue reading
Posted in .NET, algorithms, books, C#, C# programming
Tagged .NET, algorithms, animation, API, books, C#, C# Helper, C# programming, classes, clipboard, combinatorics, cryptography, curve fitting, dialogs, drag and drop, drawing, events, example, example program, Excel, files, fractals, FTP, graphics, image processing, interop, interoperability, mathematics, multimedia, Office, printing, Rod Stephens, serialization, system, threading, tips, tools, Windows Forms programming
2 Comments
Table of Contents: The C# Helper Top 100
This is a brief summary of the book’s table of contents. Introduction Part I. Serialization 1. Read a CSV File into an Array (1) 2. Use JSON to Serialize and Deserialize Objects (49) Part II. Graphing 3. Draw a Graph … Continue reading
Posted in .NET, algorithms, books, C#, C# programming
Tagged .NET, algorithms, animation, API, books, C#, C# Helper, C# programming, classes, clipboard, combinatorics, cryptography, curve fitting, dialogs, drag and drop, drawing, events, example, example program, Excel, files, fractals, FTP, graphics, image processing, interop, interoperability, mathematics, multimedia, Office, printing, Rod Stephens, serialization, system, threading, tips, tools, Windows Forms programming
2 Comments
New Book: The C# Helper Top 100
I’m happy to announce my latest book, The C# Helper Top 100, The 100 most popular posts at csharphelper.com. It describes the 100 most popular posts on the C# Helper web site. This is my 32nd book and my second … Continue reading
Posted in .NET, algorithms, books, C#, C# programming
Tagged .NET, algorithms, animation, API, books, C#, C# Helper, C# programming, classes, clipboard, combinatorics, cryptography, curve fitting, dialogs, drag and drop, drawing, events, example, example program, Excel, files, fractals, FTP, graphics, image processing, interop, interoperability, mathematics, multimedia, Office, printing, Rod Stephens, serialization, system, The C# Helper Top 100, threading, tips, tools, Windows Forms programming
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Use the mouse wheel to scale an image in C#
This example lets you use the mouse wheel to zoom in and out on an image. To use the mouse wheel, the program needs to catch the MouseWheel event. Unfortunately that event isn’t listed in the Form Designer so you … Continue reading
Posted in events, graphics, image processing
Tagged C#, C# programming, events, example, example program, graphics, image processing, mouse wheel, scale, Windows Forms programming, zoom
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Handle NumericUpDown value change events in C#
The post Make a NumericUpDown use decimal values in C# shows how you can make a NumericUpDown control display decimal values. When the user clicks a NumericUpDown control’s arrows or presses the up or down arrow key while the control … Continue reading
Posted in controls, mathematics
Tagged C#, C# programming, controls, events, example, example program, mathematics, NumericUpDown, NumericUpDown control, Windows Forms programming
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Use global command bindings in WPF and C#
The example Use custom command bindings in WPF and C# explains how you can make a program use custom commands. (This is a confusing topic so read that post before you continue with this one.) That technique doesn’t quite work … Continue reading