Introduction to the Visual Studio 2005

Transcription

1 Chapter 1 Introduction to the Visual Studio INTRODUCTION Included in Visual Studio.NET Visual Basic (VB.Net, VB 7.0) C++ C# (đọc là CSharp) J# (J Sharp).NET Framework 2 CÀI ĐẶT Visual Studio.NET 2005 Chạy file setup.exe ta được hình minh họa (chú ý cài khá lâu có thể hơn 1 giờ) 3

2 CÀI ĐẶT Visual Studio.NET 2005 Nhấn Next 4 CÀI ĐẶT Visual Studio.NET 2005 Thường các Key đã có sẵn Nhấn Next 5 CÀI ĐẶT Visual Studio.NET 2005 Lựa chọn vàyêu cầu phần khoảng trống ổ cứng Chú ý 6

3 CÀI ĐẶT Visual Studio.NET 2005 Cài đặt từng phần tốn khá nhiều thời gian 7 CÀI ĐẶT MSDN (Help) Cài đặt MSDN cóthể độc lập hoặc cài sau khi đã cài bộ Visual Studio CÀI ĐẶT MSDN (Help) 9

4 CÀI ĐẶT MSDN (Help) 10 CÀI ĐẶT MSDN (Help) Nên chọn full 11 CÀI ĐẶT MSDN (Help) 12

5 CÀI ĐẶT MSDN (Help) 13 CÀI ĐẶT MSDN (Help) 14 Introduction Visual Studio.NET Framework. Microsoft s Integrated Development Environment (IDE) 15

6 The.NET Framework The Common Language Runtime (CLR) is another central part of the.net Frameworkit executes.net programs The.NET Framework Class Library (FCL) can be used by any.net language. 16 The.Net Framework Understanding the.net Framework Architecture 17 Understanding the Common Language Runtime Common Language Runtime Architecture 18

7 Programming Languages Procedural Program specifies exact sequence Event Driven Object Oriented Programming (C#.NET) User controls sequence Click event Double Click event Change event 19 Quá trình biên dịch và chạy một chương trình trên nền.net C# Code C# Compiler Visual Basic Code VisualBasic Compiler IL JIT Compiler COBOL Code COBOL Compiler Native Code 20 Object Model Object ==> Like a Noun in English Form and Controls on forms (Button, Text boxes ) Property ==> Like Adjective,they describe object Text, Name, BackColor, Font and Size Method ==> Like Verb, They are actions that objects exhibit Event ==> Occur when the user takes action User clicks a button Class ==> Template to create new object Each control added is an Instance of a Class (Example: adding a second form to the project it will have the same properties) 21

8 Dot Notation Used to reference object's properties and methods in code Object dot Property Form.Text, TextBox.Text (Example: lblmessage.text = "Hello World ) Object dot Method Form.Hide( ), TextBox.Focus( ) To reference an object's events use an underscore instead of a dot Button_Click, ListBox_TextChanged private void btnholot_click(object sender, EventArgs e) { // statement } 22 INTRODUCTION C#.NET supports programming projects that run in both Windows desktop and Internet environments. We will focus on the Windows desktop Both of these environments are based on what is termed a graphical user interface or GUI for short 23 Steps for Writing C# Design/Define the User Interface Plan/Set the Properties Plan/Write the Code Test and Debug 24

9 Visual Studio.NET Integrated Development Environment (IDE) Overview 25 Visual Studio.NET Integrated Development Environment (IDE) Overview Visual C# projects folder Visual C# Windows Application (selected) project name project location 26 IDE Main Window Toolbars Document Window Form Designer Solution Explorer Properties Window Toolbox 27

10 Visual Studio.NET Integrated Development Environment (IDE) Overview menu title bat tabs menu bar active tab Form (windows application) Solution Explorer Properties window 28 Toolbox Holds the tools you place on a form toolbox group controls scroll arrow 29 Menu Bar and Toolbar toolbar icon (indicates a command to open a file) toolbar down arrow indicates additional commands 30

11 Solution Explorer Solution Explorer Toolbox Properties 31 Solution Explorer 32 Solution Explorer The Solution Explorer Lists all files in the solution Displays the contents or a new project or open file The start up project is the project that runs when the program is executed It appears in bold in the SolutionExplorer The plus and minus images expand and collapse the tree Can also double click on the file name to expand/collapse SolutionExplorer toolbar The Refresh icon reloads files in the solution The Display icon shows all files, even the hidden ones Icons change based on selected file 33

12 Solution Explorer Refresh Display all files Properties window Startup project Collapse tree Expand tree 34 Properties window The Properties window Manipulate the properties of a form or control Each control has its own set of properties Properties can include size, color, text, or position Right column is the property Left column is the property value Icons The Alphabetic icon arranges the properties alphabetically The Categorized icon arranges the properties by category The Event icon allows reactions to user actions Users alter controls visually without writing code The component selection dropdown list shows what control is Slide 35 being altered and what other controls can be altered 35 Properties Window Characterized icon Component selection Event icon Alphabet icon Scroll bar Property Current value Description 36

13 Using Help Help menu Index Displays an alphabetic index that users can browse through Search Allows users to search for a particular help topic Filters can be use to narrow the search Dynamic help Provide a help topic based on the mouse location Displays relevant topics in the dynamic help window Lists help entries, samples, and getting started topics Context-Sensitive help Automatically brings up relevant help topics Slide Using Help Dynamic Help window Fig Dynamic Help window. Slide Naming Rules Always use standard names for objects No spaces or punctuation marks 3 letter lowercase prefix identifies control type Button-btn Label-lbl Form-frm If multiple words capitalize 1st letter of each word 39

14 Recommended Naming Conventions for C# Objects Object Class Prefix Example Form frm frmdataentry Button btn btnexit TextBox txt txtpaymentamount Label lbl lbltotal Radio Button rad radbold CheckBox chk chkprintsummary Horizontal ScrollBar hsb hsbrate Vertical ScrollBar vsb vsbtemperature PictureBox pic piclandscape ComboBox cbo cbobooklist ListBox lst lstindegredients 40 Ví Dụ Đặt Tên lblmessage btnpush btnexit 41 Sinh Viên Hãy Đặt Tên Sau Name? Name? Name? Name? Name? 42

15 Simple Program: Displaying Text and an Image The program Form to hold other controls Label to display text PictureBox to display a picture No code needed to create this program Create the new program Create a new project Make the project a windows application Name it: ASimpleProjectand sets its location Set the form s title bar The Text property determines the text in the title bar Set the value to: A Simple Program Slide Ví dụ 1 Simple Program: Displaying Text and an Image 44 Simple Program: Displaying Text and an Image Project type Project name Project location Click to change project location 45

16 Simple Program: Displaying Text and an Image Select project location Click to set project location 46 Simple Program: Displaying Text and an Image Name and type of object Selected property Property description Property value 47 Simple Program: Displaying Text and an Image Title bar Disabled sizing handle grid Mouse pointer over a sizing handle Enabled sizing handle 48

17 Simple Program: Displaying Text and an Image Custom palette Current color Down arrow 49 Simple Program: Displaying Text and an Image Label control New background color 50 Simple Program: Displaying Text and an Image Label centered with updated Text property 51

18 Simple Program: Displaying Text and an Image New PictureBox Updated Label 52 Simple Program: Displaying Text and an Image Newly inserted image (after resizing the picture box) 53 Simple Program: Displaying Text and an Image Start button Run mode Design form End button Design form (grid) Running application 54

19 Ví Dụ2 Có cần đặt lại tên???? Có cần đặt lại tên???? lblkqua btnvn btnclose btneng btnspan 55 Code Cho Nút English private void btnenglish_click(object sender, EventArgs e) { lblkq.text = "Hello"; 2 } 1 56