code 39 vb.net Custom Serialization in Visual Basic .NET

Drawing Code 128 in Visual Basic .NET Custom Serialization

Custom Serialization
Encode Code-128 In VB.NET
Using Barcode generator for .NET Control to generate, create Code 128 Code Set C image in VS .NET applications.
www.OnBarcode.com
Recognize Code 128 In Visual Basic .NET
Using Barcode decoder for .NET framework Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
By implementing the System.Runtime.Serialization.ISerializable interface, a developer can manually control which fields a class serializes. This is the functional equivalent of java.io.Externalizable, allowing the programmer to take responsibility for the serialization process. The ISerializable interface contains a single method, GetObjectData, which is called when the object is written to a formatter. Classes that implement the interface must also provide a constructor that accepts the same arguments as the GetObjectData method. Note that types that implement ISerializable must still be annotated with the Serializable attribute. Here is SimpleClass, modified to implement the interface and the constructor:
Bar Code Maker In Visual Basic .NET
Using Barcode creator for Visual Studio .NET Control to generate, create barcode image in VS .NET applications.
www.OnBarcode.com
Barcode Recognizer In Visual Basic .NET
Using Barcode reader for Visual Studio .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
[Serializable] class SimpleClass : ISerializable { private int o_int; private string o_string; public SimpleClass() { } protected SimpleClass(SerializationInfo p_info, StreamingContext p_context) { o_int = p_info.GetInt32("int"); o_string = p_info.GetString("string");
Code 128 Generation In Visual C#
Using Barcode encoder for .NET framework Control to generate, create Code 128B image in VS .NET applications.
www.OnBarcode.com
Code 128 Creator In .NET Framework
Using Barcode generator for ASP.NET Control to generate, create Code-128 image in ASP.NET applications.
www.OnBarcode.com
10. Streams, Files, and I/O public int SimpleInt { get { return o_int; } set { o_int = value; } } public String SimpleString { get { return o_string; } set { o_string = value; } } public virtual void GetObjectData(SerializationInfo p_info, StreamingContext p_context) { p_info.AddValue("int", o_int); p_info.AddValue("string", o_string); } }
Code 128 Code Set A Creator In VS .NET
Using Barcode encoder for .NET Control to generate, create Code 128C image in VS .NET applications.
www.OnBarcode.com
Generate USS Code 39 In VB.NET
Using Barcode generator for VS .NET Control to generate, create Code 39 Extended image in VS .NET applications.
www.OnBarcode.com
The changes appear in boldface, the first being a default constructor, required because we have added the protected form for the ISerializable support. The GetObjectData method takes two arguments, a SerializationInfo and a StreamingContext. The StreamingContext represents the scope of the serialized data. When either a BinaryFormatter or a SoapFormatter is created, it's possible to specify a value from the StreamingContext enumeration, which will be made available as the argument to GetObjectData. The default context state is All, indicating that the data can be transmitted to any other context or application domain. Setting different values for this scope allows the programmer to selectively serialize data based on where it will be used for example, omitting fields when the data will cross to another process but ensuring that all fields are serialized when the object is persisted to a local file. The SerializationInfo type is used to serialize and restore fields. In the example GetObjectData method, we use the AddValue method to store an integer and a string. Overloaded forms of this method accept all primitive data types and all objects, which will in turn be serialized. Each value added with AddValue is stored as a key/value pair, and the programmer is able to specify any string as the key. These keys are then used in the special constructor to retrieve the values and restore the object state.
PDF 417 Generation In VB.NET
Using Barcode encoder for VS .NET Control to generate, create PDF-417 2d barcode image in VS .NET applications.
www.OnBarcode.com
Printing Data Matrix ECC200 In VB.NET
Using Barcode printer for .NET Control to generate, create Data Matrix ECC200 image in .NET applications.
www.OnBarcode.com
Important
UPC A Creation In Visual Basic .NET
Using Barcode creator for .NET framework Control to generate, create UCC - 12 image in .NET applications.
www.OnBarcode.com
Painting EAN-8 Supplement 2 Add-On In Visual Basic .NET
Using Barcode printer for VS .NET Control to generate, create EAN8 image in VS .NET applications.
www.OnBarcode.com
Classes that are derived from types that implement ISerializable must implement the GetObjectData and the special constructor and must ensure that the base versions of these members are invoked.
Denso QR Bar Code Maker In Visual C#.NET
Using Barcode maker for VS .NET Control to generate, create QR Code image in .NET framework applications.
www.OnBarcode.com
Paint UPCA In None
Using Barcode printer for Microsoft Word Control to generate, create UPCA image in Microsoft Word applications.
www.OnBarcode.com
10. Streams, Files, and I/O
Create DataMatrix In Java
Using Barcode drawer for Android Control to generate, create ECC200 image in Android applications.
www.OnBarcode.com
UPCA Printer In None
Using Barcode generation for Online Control to generate, create UPC Symbol image in Online applications.
www.OnBarcode.com
Summary
Printing Bar Code In None
Using Barcode printer for Software Control to generate, create barcode image in Software applications.
www.OnBarcode.com
EAN13 Encoder In Java
Using Barcode creator for Android Control to generate, create EAN13 image in Android applications.
www.OnBarcode.com
The model of using streams for I/O is well understood, and the .NET implementation doesn't differ much from the Java approach. Although the C# examples may look different, the underlying mechanisms are the same, and the Java programmer has little to adjust to. In other areas, the differences are more apparent, and this is especially clear with object serialization. The deep integration of attributes in .NET is evident and is far removed from the Java approach of interface implementation. Overall, the Java programmer should adapt to the .NET I/O classes quickly and find the majority of functionality available, albeit in a slightly different manner.
Make PDF417 In None
Using Barcode creator for Excel Control to generate, create PDF-417 2d barcode image in Microsoft Excel applications.
www.OnBarcode.com
ANSI/AIM Code 128 Printer In C#.NET
Using Barcode generator for .NET framework Control to generate, create Code-128 image in VS .NET applications.
www.OnBarcode.com
11. XML Processing
11. XML Processing
There are many third-party Java tools for the direct manipulation of XML. In addition, many new Java APIs are currently in early release as part of the Java Community Process. However, Java version 1.4 includes only basic XML processing features, providing support for the Document Object Model (DOM), Simple API for XML (SAX), and Extensible Stylesheet Language Transformations (XSLT) standards, detailed in Table 11-1.
Copyright © OnBarcode.com . All rights reserved.