Other Property Information in VB.NET

Create PDF-417 2d barcode in VB.NET Other Property Information

Other Property Information
PDF-417 2d Barcode Creator In VB.NET
Using Barcode drawer for VS .NET Control to generate, create PDF 417 image in .NET applications.
www.OnBarcode.com
Recognizing PDF 417 In VB.NET
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
The IDataSourceFieldSchema interface defines other properties as well. Some of these properties have little meaning for a business object. For instance, there s no way to determine meaningful values for Scale and Precision based on a business object s property, so these just return -1: Public ReadOnly Property Scale() As Integer _ Implements System.Web.UI.Design.IDataSourceFieldSchema.Scale Get Return -1 End Get End Property Other properties can be determined based on information from the PropertyDescriptor object passed into the ObjectFieldInfo constructor. That PropertyDescriptor object provides information about the specific business object property. The property s name, for instance, can be directly retrieved: Public ReadOnly Property Name() As String _ Implements System.Web.UI.Design.IDataSourceFieldSchema.Name Get Return mField.Name End Get End Property
GTIN - 13 Creation In VB.NET
Using Barcode printer for .NET framework Control to generate, create UPC - 13 image in Visual Studio .NET applications.
www.OnBarcode.com
Printing 2D In Visual Basic .NET
Using Barcode drawer for Visual Studio .NET Control to generate, create Matrix 2D Barcode image in .NET framework applications.
www.OnBarcode.com
Getting the Property s Data Type
Print PDF 417 In Visual Basic .NET
Using Barcode generator for .NET framework Control to generate, create PDF 417 image in Visual Studio .NET applications.
www.OnBarcode.com
Code 3 Of 9 Creation In VB.NET
Using Barcode generation for VS .NET Control to generate, create Code 39 Full ASCII image in .NET framework applications.
www.OnBarcode.com
The DataType property is a bit complex. It must deal with the possibility that the business object s property was declared with the Nullable(Of T) generic type. Fortunately, the Utilities. GetPropertyType() method discussed earlier in the chapter deals with that case, so it is called to ensure that the correct type is returned:
Drawing Linear In Visual Basic .NET
Using Barcode encoder for Visual Studio .NET Control to generate, create Linear image in VS .NET applications.
www.OnBarcode.com
USPS PLANET Barcode Printer In VB.NET
Using Barcode generation for .NET framework Control to generate, create Planet image in Visual Studio .NET applications.
www.OnBarcode.com
CHAPTER 5 s COMPLETING THE FRAMEWORK
Painting PDF 417 In .NET Framework
Using Barcode creation for ASP.NET Control to generate, create PDF-417 2d barcode image in ASP.NET applications.
www.OnBarcode.com
Making PDF 417 In Java
Using Barcode encoder for BIRT Control to generate, create PDF-417 2d barcode image in Eclipse BIRT applications.
www.OnBarcode.com
Public ReadOnly Property DataType() As System.Type _ Implements System.Web.UI.Design.IDataSourceFieldSchema.DataType Get Return Utilities.GetPropertyType(mField.PropertyType) End Get End Property The ObjectSchema, ObjectViewSchema, and ObjectFieldInfo objects combine to provide ASP .NET with schema information about the business object when requested through the CslaDesignerDataSourceView object s Schema property. Together with all the other classes related to CslaDataSource, the end result is a fully functional data source control that understands CSLA .NET style business objects. UI developers can use this control to leverage the data binding support of ASP.NET Web Forms when working with rich business objects.
Drawing Code 3/9 In None
Using Barcode generation for Online Control to generate, create Code39 image in Online applications.
www.OnBarcode.com
Code128 Scanner In Java
Using Barcode decoder for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
Conclusion
Code-128 Printer In Visual Studio .NET
Using Barcode drawer for ASP.NET Control to generate, create Code128 image in ASP.NET applications.
www.OnBarcode.com
Printing Code-39 In Java
Using Barcode drawer for Java Control to generate, create USS Code 39 image in Java applications.
www.OnBarcode.com
This chapter concludes creation of the CSLA .NET framework. Over the past three chapters, you have learned how to support a wide variety of functionality to support the development of business objects. This chapter combined a wide range of capabilities, including the following: Additional business base classes Custom authentication Collection sorting Date handling Common business rules Data access Reporting Windows data binding Web data binding Combined with the support for editable and read-only business objects from 3, and the data access and mobile object support from 4, these capabilities make it relatively easy to build a powerful object-oriented business layer for an application. The remainder of the book will focus on how to use this framework to create business objects, as well as a variety of UIs for those objects, including Windows Forms, Web Forms, and Web Services.
Code 39 Extended Generator In .NET
Using Barcode drawer for Reporting Service Control to generate, create USS Code 39 image in Reporting Service applications.
www.OnBarcode.com
Painting Code 128 Code Set B In Objective-C
Using Barcode generation for iPad Control to generate, create Code 128 image in iPad applications.
www.OnBarcode.com
CHAPTER
Recognizing QR Code 2d Barcode In C#
Using Barcode decoder for VS .NET Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
Drawing QR-Code In None
Using Barcode generation for Office Word Control to generate, create QR image in Word applications.
www.OnBarcode.com
Object-Oriented Application Design
Creating Data Matrix 2d Barcode In Java
Using Barcode creator for Android Control to generate, create Data Matrix 2d barcode image in Android applications.
www.OnBarcode.com
Data Matrix Decoder In VB.NET
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
hapters 1 and 2 discussed the concepts behind distributed, object-oriented systems, and the .NET technologies that make them practical to implement with reasonable effort. Then, s 3 through 5 covered the design and implementation of CSLA .NET, a framework upon which you can build distributed, object-oriented applications; thereby avoiding the complexities of the underlying technologies while creating each business class or user interface. 7 will discuss the basic structure of business objects based on CSLA .NET. 8 will put that knowledge to use to implement a set of sample business objects for an application to track projects and resources assigned to projects. 9 will walk through the implementation of a Windows Forms UI, and in 10, a Web Forms UI will be implemented based on these objects. 11 will discuss the creation of a Web Services interface so the business objects can be used by other applications through the standard SOAP protocol. This chapter will focus on the object-oriented application design process, using a sample scenario and application that will be implemented through the rest of the book. The design process in this chapter will result in a design for the business objects, and for an underlying database. Obviously, the challenge faced in designing and building a sample application in a book like this is that the application must be small enough to fit into the space available, and yet be complex enough to illustrate the key features I want to cover. To start with, here s a list of the key features that I want to focus on: Creation of a business object Implementation of business validation rules Implementation of business authorization rules Transactional and nontransactional data access Parent-child relationships between objects Many-to-many relationships between objects Use of name/value lists Use of custom CSLA .NET authentication In this chapter, I ll focus on the design of the application by using some example user scenarios, which are generally referred to as use cases. Based on those use cases, I ll develop a list of potential business objects and relationships. This information will be refined to develop a class design for the application. Based on the scenarios and object model, a relational database will be designed to store the data. As I mentioned in 2, object-oriented design and relational design aren t the same process, and you ll see in this case how they result in two different models. To resolve these models, the business objects will include object-relational mapping (ORM) when they are implemented in
Copyright © OnBarcode.com . All rights reserved.