Category Archives: coding

Define custom exception classes in C#

Posted on September 26, 2017 by Rod Stephens

The example Throw a standard exception in C# explains how to throw exceptions to tell the program about unexpected errors. The example See a hierarchy of exception classes for use in C# lists some useful exception classes. But what if … Continue reading →

Posted in coding | Tagged C#, C# programming, coding, custom exception, custom exception classes, example, example program, exception, exception classes, exception handling, exceptions, try catch, try catch block, Windows Forms programming | Leave a comment

See a hierarchy of exception classes for use in C#

Posted on September 25, 2017 by Rod Stephens

The example Throw a standard exception in C# explains how to throw exceptions to indicate a problem in a program. Throwing an exception is easiest if you can find an existing exception class that correctly represents your situation. The following … Continue reading →

Posted in coding | Tagged C#, C# programming, coding, example, example program, exception, exception handling, standard exception classes, standard exceptions, try catch, try catch block, Windows Forms programming | 2 Comments

Throw standard exceptions in C#

Posted on September 23, 2017 by Rod Stephens

The example Use try catch blocks to protect against unexpected errors in C# explains how to catch an exception and briefly mentions that you can use the throw statement to throw your own exception. This example shows how to throw … Continue reading →

Posted in coding | Tagged C#, C# programming, coding, example, example program, exception, exception classes, exception handling, exceptions, try catch, try catch block, Windows Forms programming | 2 Comments

Remove unnecessary using directives in C#

Posted on September 12, 2017 by Rod Stephens

The top of a C# code file usually includes series of using directives to tell Visual Studio which namespaces are used by the code. When you first create a project, the code files include lots of using directives that might … Continue reading →

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Tip: Make parentheses matching more visible in C#

Posted on April 11, 2017 by Rod Stephens

Recently someone asked me if there was a Visual Studio add-in that highlighted parentheses, brackets, and braces so it would be easier to tell which closing parenthesis matched which opening parenthesis. It turns out that Visual Studio already has a … Continue reading →

Posted in coding, miscellany, tips | Tagged C#, C# programming, coding, example, example program, miscellany, parentheses matching, tips, Windows Forms programming | 1 Comment

Use preprocessor directives in C#

Posted on September 8, 2014 by Rod Stephens

Technically C# actually doesn’t have a true preprocessor, but it treats these statements as if they were preprocessor directives. These statements tell C# about how to process pieces of code. The directives are: #if Tests a Boolean value at compile … Continue reading →

Posted in coding, syntax | Tagged #endif, #if, C#, C# programming, coding, example, example program, preprocessor directives, syntax, Windows Forms programming | Leave a comment

Understand the region and endregion directives in C#

Posted on October 4, 2013 by Rod Stephens

The region and endregion directives define a section of code that you can collapse and expand by clicking the – and + signs to the left of the code window. You can include optional text at the end of the … Continue reading →

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Use the pragma directive to disable Visual Studio warnings in C#

Posted on October 3, 2013 by Rod Stephens

Visual Studio provides warnings to let you know when your code contains something suspicious. For example, suppose you have XML documentation enabled. (See Use XML comments to provide IntelliSense support and documentation in C# for information about what XML documentation … Continue reading →

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