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C# in a Nutshell
book

C# in a Nutshell

by Ben Albahari, Ted Neward, Peter Drayton
March 2002
Intermediate to advanced content levelIntermediate to advanced
864 pages
31h 8m
English
O'Reilly Media, Inc.
Content preview from C# in a Nutshell

Name

Exception

Synopsis

This is the base class for all .NET exceptions. .NET Framework exceptions are generally derived from SystemException, and user-defined exceptions are generally derived from ApplicationException.

In some cases, one exception may throw another; this is often the case when using layered architectures. For example, a persistence layer may throw a persistence-related exception (DatabaseNotFoundException), whose semantics are undefined at a higher level (such as the UI layer). In this case, a middle layer may throw a new exception-derived type (such as PersistenceException), but doesn’t wish to lose the original source of the exception — instead, it wraps the original exception by setting it to be the InnerException. In this way, a layer can communicate a lower-level exception to higher layers without a loss of information or violating encapsulation.

The StackTrace property is a string containing the stacktrace. This permits determination of the call sequence leading up to the line that threw the exception. HelpLink contains a link to a help file with information about the exception. Message contains a text message that describes the exception.

public class Exception : System.Runtime.Serialization.ISerializable {
// Public Constructors
   public method Exception();  
   public method Exception(string message);  
   public method Exception(string message, 
        Exception innerException);  
// Protected Constructors
   protected method Exception( System.Runtime.Serialization.SerializationInfo ...
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Publisher Resources

ISBN: 0596001819Catalog PageErrata