NAMESPACES AND CLASSES in VB.NET

Creator PDF-417 2d barcode in VB.NET NAMESPACES AND CLASSES

CHAPTER 7 NAMESPACES AND CLASSES
PDF 417 Drawer In VB.NET
Using Barcode drawer for Visual Studio .NET Control to generate, create PDF 417 image in Visual Studio .NET applications.
www.OnBarcode.com
PDF 417 Decoder In VB.NET
Using Barcode reader for Visual Studio .NET Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
None of the augmenting segments can contain duplicate item declarations. If you declare field int32 X in one segment and then declare it in another segment, the ILAsm compiler will not appreciate that you probably have the same field in mind and will read it as an attempt to define two identical fields in the same class, which is not allowed. The augmenting segments are not explicitly numbered, and the class is augmented according to the sequence of augmenting segments in the source code. This means the sequence of class item declarations will change if you swap augmenting segments, which in turn might affect the class layout. A good strategy for writing an ILAsm program in versions 1.0 and 1.1 was to use forward class declaration, explained in the 1. This strategy allows you to declare all classes of the current module, including nested ones, without any members and attributes, and to define the members and attributes in augmenting segments. This way, the IL assembler gets the full picture of the module s type declaration structure before any type is referenced. By the time locally declared types are referenced, they all are already defined and have corresponding TypeDef metadata records. There is no need for forward class declaration in version 2.0 of ILAsm, though. In v2.0, the IL assembler implicitly declares a class whenever this class is mentioned, as a declaration or as a reference. Of course, the class implicitly declared on a reference is just a dummy a placeholder. It turns from a dummy to real class declaration when the declaration of the class (.class ... { ... }) is encountered in the source code. If all compilands are parsed, and there still are dummies remaining, the compilation fails. This method of class bookkeeping messes up royally the order of class declaration on round-tripping (disassembling and reassembling of a module), because the classes in the round-tripped module are emitted not in the order they were emitted in the original module, but rather in the order they were mentioned in the disassembly. This is a minor issue, because the order of class definitions (TypeDef records) does not really matter, except in the case of nested classes (enclosing class must be declared before the nested class), and this case is handled properly by the IL assembler. If, however, you want to preserve the order of class declarations or you have some considerations to emit the class declarations in some particular order, you can use directive .typelist: .typelist { FirstClass SecondClass ThirdClass ...} The .typelist directive is best placed right on top of the first source file, even before the manifest declarations but after the .mscorlib directive, if present. The reason for such placing is obvious: the IL assembler needs to know right away if you are compiling Mscorlib.dll or something else, and the manifest declarations might have custom attributes, or other class references, that could mix up the intended order of class declaration. Manifest declarations, described in 6, plus forward class declarations (v1.0, v1.1) or the .typelist directive (v2.0), look a lot like a program header, so I would not blame you if you put them in a separate source file. Just don t forget that this file must be first on the list of source files when you assemble your module.
Linear Barcode Drawer In Visual Basic .NET
Using Barcode printer for .NET framework Control to generate, create Linear 1D Barcode image in VS .NET applications.
www.OnBarcode.com
Barcode Generation In Visual Basic .NET
Using Barcode printer for Visual Studio .NET Control to generate, create Barcode image in VS .NET applications.
www.OnBarcode.com
CHAPTER 7 NAMESPACES AND CLASSES
Printing UPC-A In VB.NET
Using Barcode encoder for VS .NET Control to generate, create GTIN - 12 image in Visual Studio .NET applications.
www.OnBarcode.com
Painting EAN / UCC - 13 In VB.NET
Using Barcode generation for VS .NET Control to generate, create GS1-128 image in VS .NET applications.
www.OnBarcode.com
Summary of the Metadata Validity Rules
Data Matrix 2d Barcode Generator In VB.NET
Using Barcode creator for .NET Control to generate, create ECC200 image in Visual Studio .NET applications.
www.OnBarcode.com
2 Of 5 Industrial Printer In Visual Basic .NET
Using Barcode encoder for .NET Control to generate, create 2 of 5 Industrial image in Visual Studio .NET applications.
www.OnBarcode.com
Recall that the type-related metadata tables (except those related to generic types, which will be discussed in 11) include TypeDef, TypeRef, InterfaceImpl, NestedClass, and ClassLayout. The records of these tables contain the following entries: The TypeDef table contains the Flags, Name, Namespace, Extends, FieldList, and MethodList entries. The TypeRef table contains the ResolutionScope, Name, and Namespace entries. The InterfaceImpl table contains the Class and Interface entries. The NestedClass table contains the NestedClass and EnclosingClass entries. The ClassLayout table contains the PackingSize, ClassSize, and Parent entries.
Make PDF-417 2d Barcode In None
Using Barcode encoder for Font Control to generate, create PDF 417 image in Font applications.
www.OnBarcode.com
Draw PDF 417 In Java
Using Barcode maker for Java Control to generate, create PDF417 image in Java applications.
www.OnBarcode.com
PDF-417 2d Barcode Maker In Java
Using Barcode creation for Java Control to generate, create PDF 417 image in Java applications.
www.OnBarcode.com
Barcode Encoder In VS .NET
Using Barcode drawer for Reporting Service Control to generate, create Barcode image in Reporting Service applications.
www.OnBarcode.com
European Article Number 13 Encoder In None
Using Barcode maker for Online Control to generate, create EAN13 image in Online applications.
www.OnBarcode.com
Data Matrix Recognizer In Java
Using Barcode scanner for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
Making GTIN - 13 In None
Using Barcode printer for Software Control to generate, create EAN13 image in Software applications.
www.OnBarcode.com
Creating EAN-13 In None
Using Barcode creator for Microsoft Excel Control to generate, create EAN13 image in Excel applications.
www.OnBarcode.com
GS1 - 13 Maker In Java
Using Barcode drawer for Java Control to generate, create EAN 13 image in Java applications.
www.OnBarcode.com
Barcode Generator In VS .NET
Using Barcode printer for .NET framework Control to generate, create Barcode image in VS .NET applications.
www.OnBarcode.com
Barcode Creator In None
Using Barcode creation for Software Control to generate, create Barcode image in Software applications.
www.OnBarcode.com
GTIN - 12 Generation In None
Using Barcode encoder for Office Excel Control to generate, create Universal Product Code version A image in Microsoft Excel applications.
www.OnBarcode.com
Copyright © OnBarcode.com . All rights reserved.