c# create and print barcode VA LIDATIN G XML DOCUMEN TS in Visual C#

Paint Code 3/9 in Visual C# VA LIDATIN G XML DOCUMEN TS

CHAPTER 5 VA LIDATIN G XML DOCUMEN TS
Make Code 39 Full ASCII In C#
Using Barcode creator for Visual Studio .NET Control to generate, create Code 3 of 9 image in VS .NET applications.
www.OnBarcode.com
Code-39 Recognizer In C#
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
As you can see, the resultant schema defines a root element called <employees>. The <employees> element can have zero or more occurrences of the <employee> element. The <employee> element is defined as a complex type and contains four subelements: <firstname>, <lastname>, <homephone>, and <notes>. The schema also states that the elements must occur in the same sequence (as indicated by the <sequence> tag). The employeeid attribute is also defined. You can customize the generated schema to suit your needs.
Creating Denso QR Bar Code In C#
Using Barcode creator for .NET framework Control to generate, create QR Code image in .NET applications.
www.OnBarcode.com
Encoding Barcode In C#.NET
Using Barcode creation for .NET Control to generate, create Barcode image in Visual Studio .NET applications.
www.OnBarcode.com
Note You can also invoke the xsd.exe tool at a standard command prompt. However, you need to specify the
UPC-A Supplement 5 Encoder In C#.NET
Using Barcode generator for .NET Control to generate, create GTIN - 12 image in .NET framework applications.
www.OnBarcode.com
Print 1D In C#.NET
Using Barcode creator for Visual Studio .NET Control to generate, create Linear 1D Barcode image in .NET framework applications.
www.OnBarcode.com
complete path of the xsd.exe tool while invoking it. Alternatively, you can first navigate to the installation folder of .NET where the tool is located and then invoke it. You can even add it to the PATH variable.
Code 128C Printer In Visual C#
Using Barcode creator for .NET Control to generate, create Code 128 Code Set C image in .NET applications.
www.OnBarcode.com
Postnet Creator In Visual C#
Using Barcode creation for Visual Studio .NET Control to generate, create USPS POSTal Numeric Encoding Technique Barcode image in .NET framework applications.
www.OnBarcode.com
Creating the Schema from an Assembly You might be wondering why we d need to create a schema from an assembly. This facility, however, comes in handy during XML serialization, during which you often serialize your classes on the wire by using XML format. Thus the XSD schema extracted from the assembly represents the structure of this serialized XML data.
USS Code 39 Creation In None
Using Barcode generator for Online Control to generate, create USS Code 39 image in Online applications.
www.OnBarcode.com
Create USS Code 39 In None
Using Barcode drawer for Microsoft Excel Control to generate, create Code-39 image in Excel applications.
www.OnBarcode.com
Note You will learn more about XML serialization in 8.
Recognizing Barcode In Java
Using Barcode decoder for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
Read Code 39 Extended In C#.NET
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
To see how the xsd.exe tool can generate a schema from an assembly, we will create a class library project. The class library will have a single class called Employee. The source code of the Employee class is shown in Listing 5-6. Listing 5-6. The Employee Class namespace ClassLibrary1 { public class Employee { private int intEmployeeID; private string strFirstName; private string strLastName; private string strHomePhone; private string strNotes; public int EmployeeID { get { return intEmployeeID; }
Scanning Code 3/9 In VB.NET
Using Barcode decoder for .NET framework Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
QR Code Creation In Objective-C
Using Barcode creation for iPad Control to generate, create QR Code image in iPad applications.
www.OnBarcode.com
CH AP T ER 5 VA LI D AT IN G X ML D OC UMEN TS
Generate PDF-417 2d Barcode In Java
Using Barcode maker for Android Control to generate, create PDF 417 image in Android applications.
www.OnBarcode.com
EAN / UCC - 13 Generator In Java
Using Barcode creator for Java Control to generate, create EAN-13 image in Java applications.
www.OnBarcode.com
set { intEmployeeID = value; } } public string FirstName { get { return strFirstName; } set { strFirstName = value; } } public string LastName { get { return strLastName; } set { strLastName = value; } } public string HomePhone { get { return strHomePhone; } set { strHomePhone = value; } } public string Notes { get { return strNotes; }
Encode UPC Symbol In Java
Using Barcode generation for Java Control to generate, create UPCA image in Java applications.
www.OnBarcode.com
Barcode Creator In Visual Studio .NET
Using Barcode creation for .NET framework Control to generate, create Barcode image in .NET framework applications.
www.OnBarcode.com
CHAPTER 5 VA LIDATIN G XML DOCUMEN TS
Code 128B Generation In Java
Using Barcode creator for Java Control to generate, create Code 128 Code Set A image in Java applications.
www.OnBarcode.com
QR Code JIS X 0510 Creator In VS .NET
Using Barcode encoder for Reporting Service Control to generate, create QR-Code image in Reporting Service applications.
www.OnBarcode.com
set { strNotes = value; } } } } The class declares five member variables to store the employee ID, first name, last name, home phone, and notes, respectively. The class also contains five public properties EmployeeID, FirstName, LastName, HomePhone, and Notes that read and write values to the respective private variables. After you create the class, make sure to compile it so that its assembly will be called ClassLibrary1.dll. Now invoke the xsd.exe tool as shown here: xsd.exe "C:\Bipin\Pro XML\ClassLibrary1\bin\Debug\classlibrary1.dll" /outputdir:"C:\Bipin\Pro XML" The first parameter to xsd.exe specifies the path and filename of the assembly, whereas the /outputdir switch specifies the target folder where the schema should be created. Listing 5-7 shows the schema that is based on our Employee class. Listing 5-7. Schema Generated for the Employees Class < xml version="1.0" encoding="utf-8" > <xs:schema elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema"> <xs:element name="Employee" nillable="true" <xs:complexType name="Employee"> <xs:sequence> <xs:element minOccurs="1" maxOccurs="1" <xs:element minOccurs="0" maxOccurs="1" <xs:element minOccurs="0" maxOccurs="1" <xs:element minOccurs="0" maxOccurs="1" <xs:element minOccurs="0" maxOccurs="1" </xs:sequence> </xs:complexType> </xs:schema>
type="Employee" />
name="EmployeeID" type="xs:int" /> name="FirstName" type="xs:string" /> name="LastName" type="xs:string" /> name="HomePhone" type="xs:string" /> name="Notes" type="xs:string" />
As you can see in Listing 5-7, the schema defines an element named <Employee> that is of complex type Employee. The complex type Employee contains five subelements: <EmployeeID>, <FirstName>, <LastName>, <HomePhone>, and <Notes>. As you must have guessed, the names of these elements are extracted from the names of the class properties. These elements must occur in sequence, as indicated by the <sequence> tag. As in the previous case, you can customize this schema to suit your needs.
CH AP T ER 5 VA LI D AT IN G X ML D OC UMEN TS
Note When you use the preceding command, the tool generates a schema for all the classes in the
assembly. You can specify only certain classes by using the /type switch.
Creating Schemas by Using the Schema Object Model (SOM)
Up until now, we have created schemas by using a variety of techniques, all of which were designtime techniques. That means we ourselves created the schemas by using a text editor, Visual Studio, or the xsd.exe tool. However, there is more to the show than this. The .NET Framework also allows you to create schemas programmatically. You can load existing schemas or create a new one from the ground up. You can then manipulate the schema by adding or removing various parts such as elements, attributes, simple types, and complex types. After you manipulate the schema as per your requirements, you can then compile it. Compiling a schema ensures that there are no errors in the schema structure. To perform schema manipulation, the .NET Framework provides a set of classes called the Schema Object Model, or SOM for short. The SOM classes reside in the System.Xml.Schema namespace. The SOM is for schemas what DOM is for XML documents: the SOM classes represent various parts of a schema. For example, to represent a simple type, the SOM provides a class called XmlSchemaSimpleType, and to represent an element, the SOM provides a class called XmlSchemaElement. There are many other classes that represent attributes, facets, groups, complex types, and so on. In the following section, you will learn about some of the core SOM classes. Note that the SOM is very extensive and I will not be discussing every available class here.
Copyright © OnBarcode.com . All rights reserved.