Page 16 : 29
Object-oriented Programming in C#
Data Access, Properties, and Methods
* Accessing Data in Objects
Indirect data access
Overview of data access in C#
* Properties
Properties - Basic Use
Properties - Tricky Use
Properties in C#
Properties: Class Point with polar coordinates
Automatic Properties
Object Initialization via Properties
Summary of properties in C#
* Indexers
Indexers in C#
Associative Arrays
Example of associating Person with BankAccount
Summary of indexers in C#
* Methods
Methods in C#
Local variables in methods
Parameters
Value Parameters
Passing references as value parameters
Passing structs as value parameters
Reference Parameters
Output Parameters
Use of ref and out parameters in OOP
Parameter Arrays
Extension Methods
Methods versus Properties versus Indexers
Summary of indexers in C#
On this slides we mention a number of characteristics of indexers in C#.
modifiers
return-type
this
[formal-parameter-list]
get
{
body-of-get
}
set
{
body-of-set
} }
The syntax of a C# indexer
Indexer characteristics
Provide for indexed read-only, write-only, or read-write access to data in objects
Indexers can only be instance members - not static
The indexing can be based on one, two or more formal parameters
Indexers can be overloaded
Indexers should be without unnecessary side-effects
Indexers should be fast
![Next page: Methods [Section] -- Keyboard shortcut: 'n'](./images/nav-right.gif "Next page: Methods [Section] -- Keyboard shortcut: 'n'")
