qr code generator api c# Methods De ned by GC in C#

Printing QR-Code in C# Methods De ned by GC

TABLE 21-15 Methods De ned by GC
Creating QR Code 2d Barcode In C#
Using Barcode maker for Visual Studio .NET Control to generate, create Quick Response Code image in VS .NET applications.
QR Code Reader In Visual C#
Using Barcode scanner for VS .NET Control to read, scan read, scan image in .NET applications.
21:
Bar Code Maker In C#
Using Barcode generation for VS .NET Control to generate, create bar code image in .NET framework applications.
Bar Code Recognizer In C#.NET
Using Barcode reader for .NET Control to read, scan read, scan image in .NET applications.
Exploring the System Namespace
Painting QR Code In .NET
Using Barcode creator for ASP.NET Control to generate, create QR Code JIS X 0510 image in ASP.NET applications.
Encoding QR Code In .NET
Using Barcode generator for .NET Control to generate, create QR Code JIS X 0510 image in Visual Studio .NET applications.
Object
Encode QR Code JIS X 0510 In VB.NET
Using Barcode creator for Visual Studio .NET Control to generate, create Quick Response Code image in Visual Studio .NET applications.
Generating Data Matrix In C#
Using Barcode maker for Visual Studio .NET Control to generate, create ECC200 image in .NET applications.
Object is the class that underlies the C# object type The members of Object were discussed in 11, but because of its central role in C#, its methods are repeated in Table 21-16 for your convenience Object defines one constructor, which is shown here: public Object( ) It constructs an empty object
Print 2D Barcode In C#
Using Barcode creator for .NET framework Control to generate, create Matrix 2D Barcode image in .NET framework applications.
Painting UCC - 12 In C#
Using Barcode creator for .NET Control to generate, create GTIN - 12 image in .NET applications.
The IComparable and IComparable<T> Interfaces
Barcode Creation In C#
Using Barcode generation for Visual Studio .NET Control to generate, create barcode image in .NET framework applications.
Painting 2/5 Industrial In C#
Using Barcode drawer for VS .NET Control to generate, create 2 of 5 Standard image in .NET framework applications.
Many classes will need to implement either the IComparable or IComparable<T> interface because it enables one object to be compared to another by various methods defined by the NET Framework 18 introduced the IComparable and IComparable<T> interfaces, where they were used to enable two objects of a generic type parameter to be compared They were also mentioned in the discussion of Array, earlier in this chapter However, because of their importance and applicability to many situations, they are formally examined here IComparable is especially easy to implement because it consists of just this one method: int CompareTo(object v) This method compares the invoking object against the value in v It returns greater than zero if the invoking object is greater than v, zero if the two objects are equal, and less than zero if the invoking object is less than v
Decode Bar Code In Visual Basic .NET
Using Barcode Control SDK for .NET Control to generate, create, read, scan barcode image in .NET applications.
Reading Barcode In None
Using Barcode decoder for Software Control to read, scan read, scan image in Software applications.
PART II
Barcode Creator In Objective-C
Using Barcode creation for iPhone Control to generate, create bar code image in iPhone applications.
Create Bar Code In Java
Using Barcode drawer for Java Control to generate, create barcode image in Java applications.
Method public virtual bool Equals(object ob)
Barcode Creation In Java
Using Barcode printer for Java Control to generate, create bar code image in Java applications.
UCC.EAN - 128 Creation In None
Using Barcode printer for Microsoft Word Control to generate, create UCC-128 image in Microsoft Word applications.
Purpose Returns true if the invoking object is the same as the one referred to by object Returns false otherwise Returns true if ob1 is the same as ob2 Returns false otherwise Performs shutdown actions prior to garbage collection In C#, Finalize( ) is accessed through a destructor Returns the hash code associated with the invoking object Obtains the type of an object at runtime Makes a shallow copy of the object This is one in which the members are copied, but objects referred to by members are not Returns true if ob1 and ob2 refer to the same object Returns false otherwise Returns a string that describes the object
Recognize Barcode In C#.NET
Using Barcode Control SDK for VS .NET Control to generate, create, read, scan barcode image in .NET applications.
Barcode Printer In None
Using Barcode creator for Microsoft Excel Control to generate, create bar code image in Excel applications.
public static bool Equals(object ob1, object ob2) protected Finalize( )
public virtual int GetHashCode( ) public Type GetType( ) protected object MemberwiseClone( )
public static bool ReferenceEquals(object ob1, object ob2) public virtual string ToString( )
TABLE 21-16 Methods De ned by Object
Part II:
Exploring the C# Library
The generic version of IComparable is declared like this: public interface IComparable<T> In this version, the type of data being compared is passed as a type argument to T This causes the declaration of CompareTo( ) to be changed, as shown next int CompareTo(T obj) Here, the type of data that CompareTo( ) operates on can be explicitly specified This makes IComparable<T> type-safe For this reason, IComparable<T> is now preferable to IComparable
The IEquatable<T> Interface
IEquatable<T>is implemented by those classes that need to define how two objects should be compared for equality It defines only one method, Equals( ), which is shown here: bool Equals(T obj) The method returns true if obj is equal to the invoking object and false otherwise IEquatable<T> is implemented by several classes and structures in the NET Framework, including the numeric structures, Char, Int32, Boolean, and String
The IConvertible Interface
The IConvertible interface is implemented by all of the value-type structures, string, and DateTime It specifies various type conversions Normally, classes that you create will not need to implement this interface
The ICloneable Interface
By implementing the ICloneable interface, you enable a copy of an object to be made ICloneable defines only one method, Clone( ), which is shown here: object Clone( ) This method makes a copy of the invoking object How you implement Clone( ) determines how the copy is made In general, there are two types of copies: deep and shallow When a deep copy is made, the copy and original are completely independent Thus, if the original object contained a reference to another object O, then a copy of O will also be made In a shallow copy, members are copied, but objects referred to by members are not If an object refers to some other object O, then after a shallow copy, both the copy and the original will refer to the same O, and any changes to O affect both the copy and the original Usually, you will implement Clone( ) so that it performs a deep copy Shallow copies can be made by using MemberwiseClone( ), which is defined by Object Here is an example that illustrates ICloneable It creates a class called Test that contains a reference to an object of a class called X Test uses Clone( ) to create a deep copy
// Demonstrate ICloneable using System; class X {
21:
Copyright © OnBarcode.com . All rights reserved.