oops concepts in vb net with examples

... ee.Message.ToString(); } finally { person = null; pBAL = null; } } In the above method, I am doing following things mainly: 1. Instantiating BAL object 2. Instantiating BO object 3. Settinng ... code inside it. - Hide Code using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using ... Architecture in ASP .NET with C# I am using 3-Tier architecture in my different projects, but adding a 4th tier is a novelty for me. After reading this article, I can see the benefits to add a Business...

Ngày tải lên: 17/10/2013, 14:15

... xiv www.it-ebooks.info Cardinal Splines Cardinal splines allow the creation of smooth lines joining a given set of points, as shown in Figure 1-4. Figure 1-4. Creating a smooth curve that joins points with ... the System.Windows.Forms namespace, which contains classes for creat- ing Windows-based applications using the features of the Windows operating system. Inside this namespace, you use the PaintEventArgs class, ... testing every single pixel of the images. In Figure 1-7, for example, if the box surrounding the arrow touches the box surrounding the monster, it’s a hit. Using bounding boxes on the sample in...

Ngày tải lên: 24/04/2014, 14:39

Ngày tải lên: 16/08/2014, 09:44

... test one thing in a single test. Testing more than one thing can lead to confusion and problems maintaining the test. Having two mocks in a test is the same as testing several things. If you ... dependencies or maintaining the constructors. Some of the more popular containers in the .NET world are “Castle Windsor”, Microsoft Unity and Spring .NET. There are many up and coming containers implementations ... about RhinoMocks as an appendix at the end of the book written by Oren Eini, the creator of RhinoMocks. 5.3.1 Introducing RhinoMocks into your tests The only thing you’ll need to do (assuming...

Ngày tải lên: 29/03/2014, 02:20

... Security Info Setting the IPrincipal Setting the IPrincipal Windows Authentication Windows Authentication Impersonation token is wrapped in Impersonation token is wrapped in WindowsPrincipal WindowsPrincipal Anonymous ... application pool identity Available using Win32 APIs Available using Win32 APIs ASP .NET 2.0 Security Info ASP .NET 2.0 Security Info Setting the IPrincipal Setting the IPrincipal Forms Authentication Forms ... Securing ASP w/ ASP .NET Securing ASP w/ ASP .NET Wildcard mapping Wildcard mapping IIS 6.0 introduces wildcard mapping IIS 6.0 introduces wildcard mapping Can easily map content...

Ngày tải lên: 08/07/2013, 01:27

Ngày tải lên: 08/10/2013, 21:20

... relates to ASP .NET and Web programming. If you've taken an introductory VB. NET programming course, built a couple of VB. NET projects, or even read through a VB. NET- specific programming book, ... performing a long series of remote calls within a loop (and you should avoid that with any remote technology). Thin-Client Applications (WebForms) VB. NET works in concert with ASP .NET to ... all programming. VB. NET can make decisions based on known criteria. For example, depending on whether a user is logged in as an administrator, a supervisor, or a line worker, VB. NET can select...

Ngày tải lên: 22/10/2013, 15:15

... major Office applications. However, VBA is not the programming language for VB .NET. Indeed, until VB .NET is incorporated into a release of Microsoft Office for .NET, the two languages will differ ... 2.4.4 Arrays in VB .NET 65 2.5 Object Variables and Their Binding 67 2.5.1 Late Binding Versus Early Binding 68 2.6 The Collection Object 69 2.7 Parameters and Arguments 70 2.7.1 Passing Arguments ... for Windows applications, VB .NET and Visual Studio .NET aim at providing a graphical interface that is suitable for developing web applications and for taking full advantage of the Internet...

Ngày tải lên: 09/12/2013, 17:15

... applications using ASP .NET and VB. NET with this hands-on reference. Table of Contents Mastering ASP .NET with VB. NET Introduction Part I - Basic Web Programming Chapter 1 - Behind the ... Debugging ASP .NET and Error-Handling Chapter 10 - File and Event Log Access with ASP .NET Chapter 11 - Sending and Receiving Messages with ASP .NET Part III - Accessing Data with ASP .NET ... time in this book trying to explain how ASP .NET applications make it so easy. In some ways, ASP .NET and VB. NET are like classic VB they make it easy to build moderately sized, highly inefficient...

Ngày tải lên: 11/12/2013, 03:15

... thì có thể vừa 1 dòng in e.Graphics.MeasureString(StringToPrint, PrintFont, _ kichthuoc, chuoidinhdang, sokytu, sodong) chuoiin = StringToPrint.Substring(0, sokytu) &apos ;In chu ỗi trên trang ... Brushes.Black, vungin, chuoidinhdang) 'N ếu vẫn còn chuỗi để in If sokytu < StringToPrint.Length Then 'Lo ại bỏ chuỗi đã in xong StringToPrint = StringToPrint.Substring(sokytu) e.HasMorePages ... Private PrintPageSetting As New PageSettings() Private StringToPrint As String Private PrintFont As New Font("Arial", 10) Các biến này dùng khi in trang, biến PrintPageSetting để thiết...

Ngày tải lên: 22/12/2013, 20:17

... customer in the list is displayed in the text boxes. Comments As you can see, adding and deleting a record does not take much more than editing and updating a record using ADO .NET. Using the ... String 39. 40. If mblnAdd Then 41. mdrCustIndiv = mdsCustIndiv.Tables("Customers").NewRow 42. End If 43. 44. ' Start the editing in the datarow. 45. mdrCustIndiv.BeginEdit() ... ActivateEditing(True) 32. 33. End Sub 34. Replace the SaveRecord routine with the following code in the form that you created for this How-To. The first change is to add the lines of code...

Ngày tải lên: 21/01/2014, 12:20

... bundled into one marketing term. The .NET Framework includes languages such as C# and VB 2005, an engine for hosting programmable web pages and web services (ASP .NET) , a model for interacting with ... In Chapter 13, you begin exploring the world of data by considering ADO .NET Microsoft’s new technology for interacting with relational databases. Chapters 14 and 15 explain how to use data binding ... 518 Simple Data Binding with Properties . . . . . . . . . . . . . . . . . . . . . . . . . 521 Problems with Single-Value Data Binding. . . . . . . . . . . . . . . . . . . . . 522 Using Code Instead of...

Ngày tải lên: 24/01/2014, 08:20

... not see Internet Information Services within the Administrative Tools, IIS is not installed and you cannot create a virtual directory. After opening Internet Information Services, find your computer’s ... introduction to the use of OOP concepts within VB .NET. Introduction to OOP Concepts The core idea within OOP is the concept of an object. An object within OOP is something that models a real world entity. ... such as Internet Explorer. With VS2005 you have a choice of either installing Internet Information Server (IIS), which is a full blown, industrial strength web server, or using the built in “personal”...

Ngày tải lên: 14/03/2014, 23:20

... a string by using the methods in the String type: Dim MyString As String = "This is a test string " MyString = MyString.Trim() ' = "This is a test string" MyString = ... the string methods in succession in a single (rather ugly) line: MyString = MyString.Trim().SubString(0, 4).ToUpper().Replace("IS", "AT") Or, to make life more interesting, ... several lines in VB. MyValue = MyValue1 + MyValue2 + _ MyValue3 For most of .NET history, this was the only option in VB code. However, VB 2010 introduced a new feature called implicit line continuation....

Ngày tải lên: 15/03/2014, 20:20

... consecutive lines. Listing 1-1a: C# Code for the Terminal Setup Program using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; namespace ... Programming in C# and VB .NET (Apress, 2002). He works for the Security and Safety Solutions division of Ingersoll-Rand, developing and integrating security software. Nick lives with his family in ... code listings. Listing 1-3a: C# Code for the DataBound Project using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; namespace...

Ngày tải lên: 17/04/2014, 09:16

... 62 3.4.2 Writing a simple TCP/IP server 65 3.5 Debugging network code 73 3.6 Socket-level networking in .NET 75 3.7 Conclusion 86 4 HTTP: Communicating with Web Servers 87 4.1 Introduction ... purchaseOrderID int ) insert into company (name,address) values ( 'Wiley E coyote','sandy desert') 3.6 Socket-level networking in .NET 77 Chapter 3 while (bytesReceived!=0); } } VB. NET Private ... technologies. These include the main activities that we all carry out in our daily lives, everything from browsing the Web, sending e-mail, and maybe uploading files with FTP. Knowing how to implement...

Ngày tải lên: 17/04/2014, 09:17

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Ngày tải lên: 12/08/2014, 21:20