By Eric Gunnerson
A Programmer’s consultant to C# 5.0 is a e-book for software program builders who are looking to actually comprehend C#. even if you’ve labored with C# ahead of or with one other general-purpose programming language, every one fast moving, concentrated bankruptcy will take you immediately to the center of a function of C# and express you why it really works how it does.
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Extra resources for A Programmer's Guide to C# 5.0
In this case, the exception information says that a DivideByZeroException occurred somewhere in the called function, without giving any insight into the details of the exception or how it might be fixed. 37 Chapter 5 ■ Exception Handling If the information in the exception is sufficient for the caller to understand what has happened, this is the preferred behavior. Caller Inform In Caller Inform, additional information is returned for the user. The caught exception is wrapped in an exception that has additional information.
Protected Can be accessed in the declaring class or derived classes. internal Can be accessed by all types in the same assembly of the declaring class and other assemblies specifically named using the InternalsVisibleTo attribute. protected internal Any access granted by protected or internal. private Only accessed by the declaring class. Method Overloading When there are several overloaded methods for a single named function, the C# compiler uses method overloading rules to determine which function to call.
NET Runtime stops executing code and searches for a try block surrounding the code in which the exception took place. It then looks for a catch block and writes out the exception message. All C# exceptions inherit from a class named Exception. For example, the ArgumentException class inherits from the SystemException class, which inherits from Exception. Choosing the Catch Block When an exception occurs, the matching catch block is determined using the following approach: 1. The runtime searches for a try block that contains the code that caused the exception.