MCTS Exam 70-516: Accessing Data with Microsoft .NET Framework 4
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C# Programming
Course 419 C# Programming G419/CN/E.1/609/D.1 © LEARNING TREE INTERNATIONAL, INC. All rights reserved. All trademarked product and company names are the property of their respective trademark holders. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, or translated into any language, without the prior written permission of the publisher. Copying software used in this course is prohibited without the express permission of Learning Tree International, Inc. Making unauthorized copies of such software violates federal copyright law, which includes both civil and criminal penalties. Introduction and Overview Course Objectives In this course, we will discuss the syntax and semantics of C# as • An object-oriented language ◦ Using encapsulation, inheritance, interfaces, realization, polymorphism, associations, and aggregates • A component-oriented language focusing on reuse via the .NET Framework Library, including ◦ Desktop graphical and web-based user interfaces ◦ Enabling cross-language operation ◦ Performing I/O using serial streams and serialization ◦ Interfacing to legacy COM components • A data-oriented language ◦ Using LINQ and the Entity Framework COM = component object model I/O = input/output LINQ = Language Integrated Query © Learning Tree International, Inc. All rights reserved. Not to be reproduced without prior written consent. Intro-2 Course Contents Introduction and Overview Chapter 1 Overview and Development Environment Chapter 2 From Your Language to C# Chapter 3 User Interface Development Chapter 4 Defining User-Written Data Types Chapter 5 The .NET Framework Chapter 6 Interfaces and Polymorphism Chapter 7 Writing .NET Components Chapter 8 Accessing Databases Chapter 9 Other C# Features Chapter 10 Course Summary Next Steps © Learning Tree International, Inc. -
1. What Is .NET Framework?
1. What is .NET Framework? The .NET Framework is the foundation on which you can design, develop, and deploy applications. t is the core of the .NET infrastructure. t e!ists as a layer "etween the .NET applications and the underlying operating system. The .NET Framework encapsulates much of the "asic functionality, such as de"ugging and security services, which was earlier "uilt into various programming languages. #. What does .NET Framework consists of? The .NET Framework consists of We" forms, Windows forms, and console applications that pertain to the presentation layer of an application. We" forms are used in We"$"ased applications, whereas Windows Forms are used in Windows$"ased applications for providing an interactive user interface. n addition, you can create character$"ased console applications that can "e e!ecuted from the command line. %esides these three components, the .NET Framework consists of two other components, the .NET Framework %ase &lasses and the &ommon Language (untime )&'(). +. Write a note on, a. -rogramming methodologies The .isual /tudio .NET programming methodology allows for mixed$ language programming. This is esta"lished through a &ommon Type /ystem )&T/) that is de0ned for all the languages that .NET Framework supports. 1ll these languages compile into an intermediate language "efore they compile in native code. Therefore, the .NET developer has the independence to code one module of an application in one language and the other module of the same application in another language. ". -latform technologies The .NET Framework includes platform technologies like 1DO.NET, 1/-.NET, and .%.NET. 1DO.NET allows .NET applications to communicate with a data"ase for retrieving, accessing, and updating data. -
Interface Evolution Via Virtual Extension Methods Brian Goetz Fourth Draft, June 2011
Interface evolution via virtual extension methods Brian Goetz Fourth draft, June 2011 1. Problem statement Once published, it is impossible to add methods to an interface without breaking existing implementations. (Specifically, adding a method to an interface is not a source- compatible change.) The longer the time since a library has been published, the more likely it is that this restriction will cause grief for its maintainers. The addition of closures to the Java language in JDK 7 place additional stress on the aging Collection interfaces; one of the most significant benefits of closures is that it enables the development of more powerful libraries. It would be disappointing to add a language feature that enables better libraries while at the same time not extending the core libraries to take advantage of that feature1. V1 of the Lambda Strawman proposed C#-style static extension methods as a means of creating the illusion of adding methods to existing classes and interfaces, but they have significant limitations – for example, they cannot be overridden by classes that implement the interface being extended, so implementations are stuck with the “one size fits all” implementation provided as an extension2, and they are not reflectively discoverable. 2. Virtual extension methods3 In this document, we outline a mechanism for adding new methods to existing interfaces, which we call virtual extension methods. Existing interfaces can be augmented without compromising backward compatibility4 by adding extension methods to the interface, whose declaration would contain instructions for finding the default implementation in the event that implementers do not provide a method body. -
Identitymodel Documentation
IdentityModel Documentation Dominick Baier and Brock Allen May 11, 2021 IdentityModel 1 IdentityModel 3 2 IdentityModel.AspNetCore 5 3 IdentityModel.AspNetCore.OAuth2Introspection7 4 IdentityModel.OidcClient 9 5 oidc-client.js 11 5.1 Overview................................................. 11 5.2 Discovery Endpoint........................................... 12 5.3 Token Endpoint.............................................. 14 5.4 Token Introspection Endpoint...................................... 17 5.5 Token Revocation Endpoint....................................... 17 5.6 UserInfo Endpoint............................................ 18 5.7 Dynamic Client Registration....................................... 18 5.8 Device Authorization Endpoint..................................... 19 5.9 Protocol and Claim Type Constants................................... 19 5.10 Creating Request URLs (e.g. for Authorize and EndSession endpoints)................ 20 5.11 Fluent API for the X.509 Certificate Store................................ 22 5.12 Base64 URL Encoding.......................................... 22 5.13 Epoch Time Conversion......................................... 22 5.14 Time-Constant String Comparison.................................... 22 5.15 Overview................................................. 23 5.16 Worker Applications........................................... 23 5.17 Web Applications............................................ 25 5.18 Extensibility............................................... 27 5.19 Overview................................................ -
Dot Net Programming CLASS: TYBBA(CA) V SEM (2013 PATTERN)
DNYANSAGAR ARTS AND COMMERCE COLLEGE, BALEWADI, PUNE – 45 Subject: 503 : Dot Net Programming CLASS: TYBBA(CA) V SEM (2013 PATTERN) Unit 1 :Introduction to .Net Framework Introduction to .NET Framework .NET is a software framework which is designed and developed by Microsoft. The first version of the .Net framework was 1.0 which came in the year 2002. In easy words, it is a virtual machine for compiling and executing programs written in different languages like C#, VB.Net etc. It is used to develop Form-based applications, Web-based applications, and Web services. There is a variety of programming languages available on the .Net platform, VB.Net and C# being the most common ones. It is used to build applications for Windows, phone, web, etc. It provides a lot of functionalities and also supports industry standards. .NET Framework supports more than 60 programming languages in which 11 programming languages are designed and developed by Microsoft. The remaining Non-Microsoft Languages which are supported by .NET Framework but not designed and developed by Microsoft. Common Language Runtime(CLR): CLR is the basic and Virtual Machine component of the .NET Framework. It is the run-time environment in the .NET Framework that runs the codes and helps in making the development process easier by providing the various services such as remoting, thread management, type-safety, memory management, robustness, etc.. Basically, it is responsible for managing the execution of .NET programs regardless of any .NET programming language. It also helps in the management of code, as code that targets the runtime is known as the Managed Code and code doesn’t target to runtime is known as Unmanaged code. -
Appendix a and Appendix B
This PDF contains 2 Appendices: Appendix A and Appendix B. Appendix A Answers to the Test Your Knowledge Questions This appendix has the answers to the questions in the Test Your Knowledge section at the end of each chapter. Chapter 1 – Hello, C#! Welcome, .NET! 1. Why can a programmer use different languages, for example, C# and F#, to write applications that run on .NET? Answer: Multiple languages are supported on .NET because each one has a compiler that translates the source code into intermediate language (IL) code. This IL code is then compiled to native CPU instructions at runtime by the CLR. 2. What do you type at the prompt to create a console app? Answer: You enter dotnet new console. 3. What do you type at the prompt to build and execute C# source code? Answer: In a folder with a ProjectName.csproj file, you enter dotnet run. 4. What is the Visual Studio Code keyboard shortcut to view Terminal? Answer: Ctrl + ` (back tick). Answers to the Test Your Knowledge Questions 5. Is Visual Studio 2019 better than Visual Studio Code? Answer: No. Each is optimized for different tasks. Visual Studio 2019 is large, heavy- weight, and can create applications with graphical user interfaces, for example, Windows Forms, WPF, UWP, and Xamarin.Forms mobile apps, but it is only available on Windows. Visual Studio Code is smaller, lighter-weight, code-focused, supports many more languages, and is available cross-platform. In 2021, with the release of .NET 6 and .NET Multi-platform App User Interface (MAUI), Visual Studio Code will get an extension that enables building user interfaces for desktop and mobile apps. -
Interview Questions ASP.NET
Interview Questions ASP.NET 1. Describe the role of inetinfo.exe, aspnet_isapi.dll andaspnet_wp.exe in the page loading process. inetinfo.exe is theMicrosoft IIS server running, handling ASP.NET requests among other things.When an ASP.NET request is received (usually a file with .aspx extension),the ISAPI filter aspnet_isapi.dll takes care of it by passing the request tothe actual worker process aspnet_wp.exe. 2. What’s the difference between Response.Write() andResponse.Output.Write()? The latter one allows you to write formattedoutput. 3. What methods are fired during the page load? Init() - when the pageis instantiated, Load() - when the page is loaded into server memory,PreRender() - the brief moment before the page is displayed to the user asHTML, Unload() - when page finishes loading. 4. Where does the Web page belong in the .NET Framework class hierarchy? System.Web.UI.Page 5. Where do you store the information about the user’s locale? System.Web.UI.Page.Culture 6. What’s the difference between Codebehind="MyCode.aspx.cs" andSrc="MyCode.aspx.cs"? CodeBehind is relevant to Visual Studio.NET only. 7. What’s a bubbled event? When you have a complex control, like DataGrid, writing an event processing routine for each object (cell, button, row, etc.) is quite tedious. The controls can bubble up their eventhandlers, allowing the main DataGrid event handler to take care of its constituents. 8. Suppose you want a certain ASP.NET function executed on MouseOver overa certain button. Where do you add an event handler? It’s the Attributesproperty, the Add function inside that property. -
Nested Class Modularity in Squeak/Smalltalk
Springer, Nested Class Modularity in Squeak/Smalltalk Nested Class Modularity in Squeak/Smalltalk Modularität mit geschachtelten Klassen in Squeak/Smalltalk by Matthias Springer A thesis submitted to the Hasso Plattner Institute at the University of Potsdam, Germany in partial fulfillment of the requirements for the degree of Master of Science in ITSystems Engineering Supervisor Prof. Dr. Robert Hirschfeld Software Architecture Group Hasso Plattner Institute University of Potsdam, Germany August 17, 2015 Abstract We present the concept, the implementation, and an evaluation of Matriona, a module system for and written in Squeak/Smalltalk. Matriona is inspired by Newspeak and based on class nesting: classes are members of other classes, similarly to class instance variables. Top-level classes (modules) are globals and nested classes can be accessed using message sends to the corresponding enclosing class. Class nesting effec- tively establishes a global and hierarchical namespace, and allows for modular decomposition, resulting in better understandability, if applied properly. Classes can be parameterized, allowing for external configuration of classes, a form of dependency management. Furthermore, parameterized classes go hand in hand with mixin modularity. Mixins are a form of inter-class code reuse and based on single inheritance. We show how Matriona can be used to solve the problem of duplicate classes in different modules, to provide a versioning and dependency management mech- anism, and to improve understandability through hierarchical decomposition. v Zusammenfassung Diese Arbeit beschreibt das Konzept, die Implementierung und die Evaluierung von Matriona, einem Modulsystem für und entwickelt in Squeak/Smalltalk. Ma- triona ist an Newspeak angelehnt und basiert auf geschachtelten Klassen: Klassen, die, wie zum Beispiel auch klassenseitige Instanzvariablen, zu anderen Klassen gehören. -
Programming with Windows Forms
A P P E N D I X A ■ ■ ■ Programming with Windows Forms Since the release of the .NET platform (circa 2001), the base class libraries have included a particular API named Windows Forms, represented primarily by the System.Windows.Forms.dll assembly. The Windows Forms toolkit provides the types necessary to build desktop graphical user interfaces (GUIs), create custom controls, manage resources (e.g., string tables and icons), and perform other desktop- centric programming tasks. In addition, a separate API named GDI+ (represented by the System.Drawing.dll assembly) provides additional types that allow programmers to generate 2D graphics, interact with networked printers, and manipulate image data. The Windows Forms (and GDI+) APIs remain alive and well within the .NET 4.0 platform, and they will exist within the base class library for quite some time (arguably forever). However, Microsoft has shipped a brand new GUI toolkit called Windows Presentation Foundation (WPF) since the release of .NET 3.0. As you saw in Chapters 27-31, WPF provides a massive amount of horsepower that you can use to build bleeding-edge user interfaces, and it has become the preferred desktop API for today’s .NET graphical user interfaces. The point of this appendix, however, is to provide a tour of the traditional Windows Forms API. One reason it is helpful to understand the original programming model: you can find many existing Windows Forms applications out there that will need to be maintained for some time to come. Also, many desktop GUIs simply might not require the horsepower offered by WPF. -
Web Technologies-Ii
$ Edited by: Sarabjit Kumar WEB TECHNOLOGIES-II Edited By Sarabjit Kumar Printed by EXCEL BOOKS PRIVATE LIMITED A-45, Naraina, Phase-I, New Delhi-110028 for Lovely Professional University Phagwara SYLLABUS Web Technologies-II S. No. Topics 1. Making Sense of .NET & Anatomy of an ASP.NET Page: The Microsoft .NET Vision, ASP in NET, Introduction to C#, A Simple Web Page, Adding a Web Control, Introduction to In-Line Script, The Page Class. 2. Server Controls: Postback, Data Binding, Web Server Controls. 3. Server Controls: HTML Server Controls, Validation Controls. 4. Database Access: Error Handling, Database Access Using ADO.NET, Connection, Command, DataAdapter, and DataSet, DataReader, Connection Pooling. 5. Creating More Advanced ASP.NET Pages: Communicating with the Browser, Web.Config. 6. Creating More Advanced ASP.NET Pages: Page Sub-classing, User Controls, More Advanced Data Binding. 7. Applying What We’ve Learned So Far: The Database Model, Creating a Basic Object Model, Creating the User Interface. 8. Web Services: XML Web Services, Uses for Web Services, Web Services in Visual Studio .NET, Creating Web Services, Expanding Web Application with Web Services. 9. Security and Membership: IIS Security, ASP.NET Authentication. Adding E-Commerce Essentials: XML Tools, Freight Calculations, Email. 10. Debugging and Optimization: Debugging in an ASP.NET Application, Optimization, Optimizing Using Caching, Optimizing via Performance Profiling. CONTENT Unit 1: Making Sense of .NET and Anatomy of an ASP.Net Page 1 Kumar Vishal, Lovely -
Appendixes APPENDIX A
PART 8 Appendixes APPENDIX A COM and .NET Interoperability The goal of this book was to provide you with a solid foundation in the C# language and the core services provided by the .NET platform. I suspect that when you contrast the object model provided by .NET to that of Microsoft’s previous component architecture (COM), you’ll no doubt be con- vinced that these are two entirely unique systems. Regardless of the fact that COM is now considered to be a legacy framework, you may have existing COM-based systems that you would like to inte- grate into your new .NET applications. Thankfully, the .NET platform provides various types, tools, and namespaces that make the process of COM and .NET interoperability quite straightforward. This appendix begins by examin- ing the process of .NET to COM interoperability and the related Runtime Callable Wrapper (RCW). The latter part of this appendix examines the opposite situation: a COM type communicating with a .NET type using a COM Callable Wrapper (CCW). ■Note A full examination of the .NET interoperability layer would require a book unto itself. If you require more details than presented in this appendix, check out my book COM and .NET Interoperability (Apress, 2002). The Scope of .NET Interoperability Recall that when you build assemblies using a .NET-aware compiler, you are creating managed code that can be hosted by the common language runtime (CLR). Managed code offers a number of ben- efits such as automatic memory management, a unified type system (the CTS), self-describing assemblies, and so forth. As you have also seen, .NET assemblies have a particular internal compo- sition. -
Project Files
APPENDIX A Project Files This Appendix explains which files are created for each project type in Visual Studio .NET 2003 and their various descriptions. First, you'll see the project types and the files created by default with those project types. Then, in the second section, you'll see these various file types explained. Project Types and Their Associated Files Table A-1 presents the project types and their associated files. For an explanation of the file types themselves, please refer to the next section. TableA-1. Project Types Serial References Added Files Created Number Project Type by Default by Wizard 1 Wmdows Application System.dll Assembly Information File: A project for creating an System.Data.dll Assemblyinfo.cs or application with a Wmdows System.Drawing.dll Assemblyinfo.vb user interface. System.Windows.Forms.dll Source Code File: (vb orcs) System.XML.dll Resource File: resx Project me: csproj or vbproj Visual Studio Solution: Sln ICON File: I co (not created for VB) Visual Studio Project User Options: Csproj. user Solution User Options: . suo 2 Class Library System.dll Source Code File: -(vb orcs) A project for creating System.Data.dll Assembly Information File: classes to use in System.XML.dll Assemblyinfo. cs or other applications. Assemblyinfo.vb By default, on creation Project File: csproj or vbproj of a Class Library, a Visual Studio Solution: Sln class is also created Visual Studio Project User for writing code. Options: csproj. user or vbproj . user Solution User Options: . suo Continued 491 492 APPENDIX A- PROJECT FILES Table A-I. Project Types (continued) Serial References Added Files Created Number Project Type by Default by Wizard 3 Windows Control library System.dl Source Code File: (vb orcs) A project for creating System.Data.dll Assembly Information File: controls to use in System.Drawing.dll Assemblylnfo.cs or Windows applications.