46 Tips for C# Developers

Here is a learning resource site for C# .NET software developers and application programmers (CSharp). It provides 46 Tips for C# developers, along with C# public domain source code and C# open source programs. The tips here cover many topics, including Windows Forms, Data Binding, Graphics, Regular Expressions, Scripting, the Registry, Object Serialization, Email, HTML, TCPIP, and ASP.NET


Tips for C# Software Developers

• C#
• How can I detect dead code in my C# application?
• How can a class implement multiple interfaces containing methods with identical signatures?
• Using Reflector to decompile assemblies

• Programs
• .NET 2.0: How to restrict a program to a single instance
• How to exit from a console application

• Windows Forms
• The best way to enable and disable buttons, menu items and toolbar buttons
• How to set focus to a specific control before the Form is displayed
• How to detect resource leaks in a Form
• How to avoid a resource leak when a Form contains a MainMenu
• How to speed up access to the RichTextBox Lines property
• How to move the cursor to a specified RichTextBox line and column
• How to determine the current RichTextBox column
• How to only allow specific characters to be typed into a RichTextBox or TextBox
• Why does setting a FolderBrowserDialog's ShowNewFolderButton property to false not work?
• How to get correct RadioButton group behavior
• Why are controls embedded in a TabControl's TabPage not sized correctly?
• .NET 2.0: How to suppress pop-up windows in a WebBrowser control

• Data Binding
• NET 2.0: How to sort DataGridView columns without implementing IBindingList

• .NET 2.0: Settings
• How to save objects of your own classes as Settings

• Graphics
• How to extract the timestamp from a JPEG file's EXIF metadata
• How to attractively scale Bitmaps

• Performance Counters
• How to determine system uptime without overflow issues

• Regular Expressions
• How to extract multiple items using one regular expression

• Scripting
• How to run JScript.NET Code from C# Apps

• The Registry
• How to save configuration settings in the registry

• Object Serialization
• How to serialize/deserialize objects to/from disk files

• XML
• How to pretty-print XML

• Unicode and Encoding
• How to determine the Encoding of a Unicode file

• E-Mail
• .NET 2.0: How to send an e-mail via SMTP
• .NET 1.1: Why doesn't SmtpMail.Send work?

• HTML
• How to launch the user's e-mail client to send an e-mail
• How to launch a browser to display HTML content

• Files
• How to programmatically send folders and files to the Recycle Bin

• TCP/IP Troubleshooting
• How to troubleshoot and debug web service calls and ASP.NET web applications
• How to determine which programs are listening to which TCP/IP Ports

• ASP.NET
• How to log uncaught application exceptions
• How to catch uncaught web service exceptions
• How to host multiple websites with multiple domains from a single, shared hosting account
• How to restrict a Calendar to a range of dates
• How to add an RSS feed to your website
• How to output non-HTML content from a .aspx page
• .NET 2.0: How to make Menu items selectable by clicking anywhere in their rectangles
• .NET 2.0: How to programmatically add tags to .aspx pages

• NUnit Testing
• How to test private methods with NUnit

• Mathematics
• How to determine the angle between two geographical locations
• How to determine the great circle distance between two geographical locations

C# .NET Source Code
Here is source code for 10 C# programs. The author has stated that he has "placed the source code in the public domain. You can use, modify, and distribute the source code and executable programs based on the source code."

C# .NET Open Source
Here is the source code for 5 open source C# programs.