design patterns in c net with examples

... Context cA = new Context( new ConcreteStrategyA()); cA.ContextInterface(); Context cB = new Context( new ConcreteStrategyB()); cB.ContextInterface(); Context cC = new Context( ... processing requirements and mechanism for creating objects in C# instead of using pointers to normal C++ and use this technique class inheritance and interfaces instead of multiple inheritance in ... programmers can cause in C and C++ are avoided in C# Generally the abstraction level of programming is higher in C# compared to C++ Introducing C# in design patterns provides the programmer with a

Ngày tải lên: 11/02/2020, 11:49

... in-depth discussions concerning the technology behind NET and DotNetNuke What I have included are the basics to get you going You’ll see concise overviews of NET and DotNetNuke You’ll see how using the ... lives with his family in the northwest hills of Connecticut and has recently become addicted to golf and road cycling He also enjoys woodworking, hiking, and exploring the hills on his motorcycle ... Uploading the Skin 318 Skin Edit Cycle 320 The Last Panel 324 Other Skinning Tasks 325 What Else Can Be Skinned? 326 Creating a Container 327 Copying a Template 327 Editing the

Ngày tải lên: 14/08/2014, 10:22

... one .NET program All the NET Framework is in the GAC You can find the GAC using Windows Explorer In Windows XP, you will find it in C:\WINDOWS\assembly (provided that the NET Framework is installed ... my second book on NET, called GDI+ Programming in C# and VB NET This book is all about graphics in NET and how to use the classes to do some amazing things I think that I used direct API calls ... self-contained program that can run within this space If you wanted a search engine, a shopping cart, and some text on a single page, you would normally create a single page and include the functionality

Ngày tải lên: 14/08/2014, 10:22

... punch.cs class file and add a new class Listing 4-6 shows the complete code for this class Put this class within the Punch class, near the top Listing 4-6. The new WeekPunch class private class ... form is called punch.Designer.cs This file contains all the code that places controls on the form It also contains all the code that handles the properties of the form Double-click the punch.Designer.cs ... string mPrivate_string; public int mPublic_integer; public string mPublic_string; Trang 14 //This is a constructor It is used to initialize the object // that is created from this class

Ngày tải lên: 14/08/2014, 10:22

... not of the caliber of ASP.NET With ASP.NET, you can do the following: • Write code with syntax checking and IntelliSense • Write code in C#, VB, or any other programming language that NET supports ... debugging session will begin The web browser should appear with your single button on the screen Click the button once, and the text will change from “Punch In” to “Punch Out.” Click it again, ... this class is shown in Listing 5-4 The changed line of code is in bold Trang 12Listing 5-4. Changing mPunchState to staticpublic partial class _Default : System.Web.UI.Page { private static bool

Ngày tải lên: 14/08/2014, 10:22

... the container, includ-ing size, colors, and other look-and-feel aspects The WebPunch project you created in the last chapter will become a DNN module While there are many modules given to you in ... page, click the Settings icon to open the Page Settings dialog Scroll down and select Advanced Settings ➤ Page Skin You will see that it is set to Not Specified Click this drop-down box and choose ... page, how about matching the modules? Again, open up the Page Settings dialog and choose Advanced Settings ➤ Page Container Choose Green - Image Header - Color Background Now click Update, and your

Ngày tải lên: 14/08/2014, 10:22

... doing is selecting which umns from a table will be given back to the calling function In this case, the stored procedure col-is taking columns from two tables and combining them before giving ... passing in Here is the new AddTimePunch method, which correctly calls the YourCompany_AddTimePunch stored procedure: public override void AddTimePunch(int ModuleId, int PunchType, int PunchUserID) ... all the code in here Figure 7-6 shows this Trang 2Figure 7-6. Pasting SQL code into the text windowMake sure that the Run as Script check box is checked, and click the Execute link This cutes the

Ngày tải lên: 14/08/2014, 10:22

... TimePunch project’s TimePunchController.cs file Put it inside the Public Methods region of code The WeekPunches Class Copy the WeekPunches class from the WebPunch project into the TimePunchController.cs ... adjusting However, this method is considered business logic As such, it belongs in the TimePunchController.cs file Copy the CalculateHours method from the WebPunch project’s default.aspx.cs file into ... using the YourCompany_GetTimePunchs stored procedure Hence the name of the GetTimePunchs method as the stored procedure This FillCollection method then fills in the TimePunchInfo object according

Ngày tải lên: 14/08/2014, 10:22

... gathered in the single pane here 283 284 CHAPTER 10 ■ DNN HOSTING Installing the Container Since the Flowers container is separate from the skin,... skin to the C: \DotNetNuke\ Install\Skin folder ... programming, and as such can be accomplished by graphic designers without any help from programmers 291 CHAPTER 11 ■■■ Creating a DNN Skin C hapter 10 described how to install and work with a ... to check the Site radio button in order to find the new skin and container in the list Click the Update link at the bottom of the page, and your screen should change to the new skin and container

Ngày tải lên: 14/08/2014, 10:22

... the source code for this layout Click the source button to view the HTML code Trang 5In the IDE, click Tools ➤ Options Make sure the Show All Settings box is checked Scroll down and click HTML ... look and feel is contained in the css file.VWD has a neat feature with which you can instantly overlay a css file onto a layout tem-plate In the Solution Explorer, click the skin.css file Now drag ... you’re creating will be displayed in the rows that contain the search box and copyright To do this, you’ll change the skingradient class in the css file This class should look like the following:

Ngày tải lên: 14/08/2014, 10:22

... this function I called this function OnBeforeCallback You can call it anything you want You will refer to it in the code-behind C# file Microsoft likes to call this the “context.” I think my name ... C# variable CallbackStr inside these brackets As you will see later, this turns out to be a Microsoft JavaScript function call that does the actual callback The CallbackResult JavaScript function ... public string CallbackStr; public string CallBackReturnVal; protected void Page_Load(object sender, EventArgs e) #region callback functions //This function is required to handle the callback

Ngày tải lên: 14/08/2014, 10:22

... other disciplines, including computer science An organized collection of design patterns that relate to a particular field is called a pattern language In the object oriented world, design patterns ... subjects in the field of security, code reviews and agile methodologies for testing magazines including TestingExperience and AgileRecord He has given lectures on Python Programming at Indian Institute ... programmer Design Pattern Classifications  Creational Patterns - They describe how best an object can be created A simple example of such design pattern is a singleton class where only a single instance

Ngày tải lên: 12/09/2017, 01:25

... willexecute properly without any issue but in Java instead of synchronizing whole method wecan synchronize only the block of code which is affected while creating instance to escapethe extra overhead as below. Trang 14‘instance’ (since it is at half initialized ... 11* Cloning: If we try to make instance by cloning it, the generated hash code of cloned copy doesn’t match with the actual object so it also violates the Singleton principle. Trang 12following code as it will work only in Java 8 and later versions ... * The classes defining the object structure rarely change, but you often want to define newoperations over the structure Changing the object structure classes requires redefining theinterface to all visitors, which is potentially costly If the object structure classes changeoften, then it’s probably better to define the operations in those classes

Ngày tải lên: 04/03/2019, 10:03

... We hope these videos will give you an even better idea of the practicalimplications of each of the application design patterns covered inthis book Trang 14Application Architecture Application architecture is a branch of software design concernedwith the structure of an application ... 20of binding — all observables are also observers, and establishing abinding connection in one direction also establishes a connection inthe reverse direction None of the bindings provided by RxCocoa (used in the MVVM-C chapter) or CwlViews (used in the MAVB ... View objects typically form a single view hierarchy, in which all objects are connected in a tree structure with the screen at the trunk,windows within the screen, and increasingly smaller views at the branches and leaves

Ngày tải lên: 17/05/2021, 13:20

... XÁC THỰC có thể chồng chéo các tính năng xác thực đã được cung cấp.Mục đích của hệ thống thông tin là cung cấp các tài nguyên đa dạng cho người dùng hoặc các quá trình Để xác định quyền truy cập, ... thường yêu cầu xác thực, nhưng có thể cần xác thực bổ sung khi truy cập vào các tài nguyên nhạy cảm Đặc biệt trong các hệ thống phân tán, việc xác minh quyền truy cập vào các đối tượng được phân ... Composite Tổ chức các đối tượng theo cấu trúc phân cấp dạng cây.Tất cả các đối tượng trong cấu trúc được thao tác theo một cách thuần nhất như nhau.Tạo ra mối quan hệ thứ bậc bao gộp giữa các

Ngày tải lên: 21/10/2021, 10:11

... to help explain the basics of database access in .NET and the concept of dataset serialization. Database programming is centered on two key strings: the connection string and structured query ... new OleDbConnection(szDSN); Table 2.6 Connection strings for common databases. Database type Connection string Microsoft Access Provider=Microsoft.Jet.OLEDB.4.0; Data Source=< location of ... machine actively refused it.” As usual, the following assemblies are added: C# using using using using using System.Threading; System.Net; System.Net.Sockets; System.Text; System.IO; VB.NET

Ngày tải lên: 12/08/2014, 21:20

... Writing Windows C# Programs 47 Objects in C# 47 Managed Languages and Garbage Collection 48 Classes and Namespaces in C# 48 Building a C# Application 49 The Simplest Window Program in C# ... classes. Thus, the second major precept suggested by Design Patterns is Favor object composition over inheritance. C# Design Patterns Each of the 23 patterns in Design Patterns is discussed, at least ... system. Characters and strings in C# are always 16 bits wide: to allow for representation of characters in non-Latin languages. It uses a character coding system called Unicode, in which thousands...

Ngày tải lên: 18/10/2013, 17:15

... in the object definition can be done without touching the entire Business Access Layers Let me explain you step-wise process of creatioin of 4-Tier architecture application. In this application, ... definition can be done without touching the entire Business Access Layers Let me explain you step-wise process of creatioin of 4-Tier architecture application. In this application, I am going to ... public int Update(Person person) { SqlConnection conn = new SqlConnection(connStr); conn.Open(); SqlCommand dCmd = new SqlCommand("UpdateData", conn); dCmd.CommandType = CommandType.StoredProcedure; ...

Ngày tải lên: 17/10/2013, 14:15

... WINDOWS PrintController prtc prtcName 53W WINDOWS PrintDocument prtd prtdName 54W WINDOWS PrinterSettings prts prtsName 55W WINDOWS Process pcs pcsName 56W WINDOWS Rectangle rec recName 57W WINDOWS ... application, and data architectures. Chapter 6: Design Structure In this chapter we start to apply the concepts that were discussed in the design policy by using structural design. Architectures are mapped ... domain: a car manufacturing plant that makes Model T cars. Chapter 1: Code Policy This chapter notes that successful code is written through code management and not by chance. It introduces code...

Ngày tải lên: 14/02/2014, 10:20

... when the object is accessed. c) A static constructor can have public as a accessibility modifiers 74. class A { public static int X = B.Y + 1; } class B { public static int Y = A.X ... explicitly or implicitly. b) Static constructors can have accessibility modifiers. e) Static constructors are called when the class is loaded. c) Static constructors cannot be called ... error. c) Incompatible type for ’=’ can’t convert SubClass to SuperClass. b) No constructor matching SuperClass() found in class SuperClass d) Wrong number of arguments in constructor....

Ngày tải lên: 21/08/2012, 15:55