1. Object Orientated Programming using C#
Module 201
Object Oriented Programming
Lecture 1 – Introduction

2. Objectives What is the .NET Framework? Introduction to C#
Visual Studio
Forms
Controls
Naming conventions

3. .NET Framework The .NET Framework is
A software development environment
A runtime engine for Managed Code
A platform designed for Internet-Distributed software
The .NET Framework is an exciting new computing platform

4. .NET Framework
Microsoft’s vision to introduce an improved programming experience
Installed on Windows Operating Systems
A software development environment
A runtime engine for Managed Code

5. Architecture Common Language Infrastructure (CLI)
.NET libraries are provided as a language-neutral platform
Common Language Runtime
A runtime provides services from the operating system and hardware
The CLR Provides:
Memory management
Thread management
Exception handling
Garbage collection
Security
The CLR allows users to ignore specifics for the CPU and get on with programming the task

6. .NET Platform Architecture

7. C# Language Why C# Uses .NET framework Works with common editors
Intuitive syntax
Powerful features
Close syntax to Java

8. Visual Studio Development tool for the programmer Includes
Graphical User Interface (GUI)
code editor supporting IntelliSense
Syntax
building GUI applications
web designer
class designer
database schema designer

9. Visual Studio Cost Download free version Download C# version
Search for Visual Studio Express 2008
Download C# version
30 days free trial – register to continue usage
Or make use of DreamSpark Version

10. Load Visual Studio Menus Solution Explorer Toolbox Code Area
Properties
Messages Area

11. Create a Simple Project
File -> New

12. Solution Explorer Displays all projects in solution
Shows all files in project
Files organisation
Project references

13. Resources Files
.resx
Efficient and secure method of storing objects within application
Images (PNG, BMP, GIF, JPEG, TIFF)
Audio
Text
Strings
Icons
Access resources programmatically

14. Window Docking Floating Dockable Tabbed Document Auto hide Hide

15. Project Properties

16. Building Projects Build project (F6) File locations
Complies code for platform
Creates executable file
File locations
EXE file

17. Visual Studio Help

18. Forms A Form is for the creation of a Graphical User Interface
Provides user interaction with the code
Positioning of user controls
A program can have one or more forms
Forms can be various sizes

19. Form Controls and Properties
Form Controls include
Buttons
Textboxes
Radio buttons
Check boxes
Labels
Sliders
Tabs
List boxes

20. Form Controls and Properties
All controls have a unique name for identification within the code
Control size X & Y
Colour
Screen position
All controls don’t necessarily have the same properties

21. Properties
Define the control’s properties
Writes code for you

22. Form Properties Name – String AcceptButton – String
CancelButton - String
Icon – Windows icon
BackColor - RGB
Enabled – True/False
Font – Style, Size, Colour
Location – X,Y
MaximizeSize – X/Y
MinimizeSize – X/Y
Size – X,Y
WindowState – Maximize, Minimize, Normal

23. Button Properties Name – String Text - String BackColor - RGB
DialogResult – OK, Cancel, Abort, Retry, Yes, No
Enabled – True/False
Font – Style, Size, Colour
Location – X,Y
Size – X,Y
TextAlign – Left, Right, Centre, Top, Middle, Bottom
TabIndex – int
Visable – True/False

24. Add Controls Add the following controls Change some properties Label
Button
ListBox
TextBox
PictureBox
Change some properties

25. Aligning Controls Use this control to align controls on a form
In most cases you will need to select two or more controls to align
Use the shift key to select multiple controls

26. Coding in C# and Visual Studio
IntelliSense
Microsoft's implementation of auto-completion
Code is separated into several files
AssemblyInfo.cs – Assembly information
Author
Company
Version/build
Form.Designer.cs - Form controls
Program.cs – application code

27. Control Naming
Controls using in your programs require appropriate naming
This aids the developer by:
Providing a description of the control
Reduces naming conflicts
Use a naming convention
Modified Hungarian Notation

28. Simple Naming Conventions
[prefixes][Basename]
Prefixes - A Prefix is created to mnemonically represent the word it abbreviates, such as "frm" for "form"
Basename - The base name is the your own name for the particular object
btnOK
txtTitle
lstNames

29. Modified Hungarian Notation
Control
Prefix
Label
lbl
ListBox
lst
MainMenu
mnu
RadioButton
rad
TextBox
txt
Timer
tmr
CheckBox
chk
ComboBox
cbo
Button
btn
Form
frm
GroupBox
grp
PictureBox
pic
Horizontal scroll bar
hsb

30. Summary What is the .NET Framework? Introduction to C# Visual Studio
Forms
Controls
Naming conventions

31. Next Time
Primitive data types
Maths operators