Appendix A. Features Specific to .NET 2.0 and C 2.0

Appendix A. Features Specific to .NET 2.0 and C# 2.0

In This Appendix

Table A-1 provides a shortcut to reference the types and classes described in this book that are supported only in .NET 2.0 and C# 2.0.

Table A-1. .NET 2.0 and C# 2.0 Features Index

Chapter.Section	Feature	Description
2.2	float type	Now referred to as a single.
2.2	tryParse method	Has been added to return a Boolean value if a string can be successfully converted into the target type: int iParse = Int32.TryParse("100", out result);
3.2	Static class	A class containing only static members can be declared.
3.4	Property access modifier	The get and set accessors can now have modifiers: protected set { name= value; }
">3.7	Anonymous methods	Eliminates the need for a separate event handler for delegates.
3.10	Generics syntax	New syntax that enables collection objects to be made type-safe. An application specifies the type of data a class can hold in a parameter: myStack<T> = new myStack<T>();
4.4	Iterators	An easier way to implement enumeration on a custom class.
4.4	System.Collection. Generic namespace	Holds a generic version of the collection classes. New classes include List<>, Dictionary<>, and Stack<>.
7.1	DataGridView and MenuStrip controls	Some new WinForms controls.
7.6	StatusStrip and ToolStripProgressBar controls	StatusStrip control supersedes StatusBar. ToolStripProgressBar can be displayed on a StatusStrip.
10.2	XmlReaderSettings class	New class used to define the behavior of the XmlReader object. Notably, it allows XML validation to be performed automatically while reading nodes.
10.4	XmlReader.Create method	New method that returns an instance of an XmlReader.
11.1	ProviderFactory class	Used to return connection and command objects from a specified data provider: string pvdr="System.Data.SqlClient"; DBProviderFactory factory; factory = DBProviderFactories.GetFactory(pvdr); DbConnection conn = factory.CreateConnection();
11.4	DataTable.Load() method	Accepts a DataReader object as a parameter and fills a table based on DataReader.
12.3	DataGridView class	WinForms class that supersedes the DataGrid control. Includes a virtual mode that permits the application to dynamically control the contents of the grid
13.2	GZipStream class	Class to perform text compression.
13.3	ParameterizedThreadStart delegate	Permits data to be passed to a thread.
13.4	Semaphore class	A new synchronization class that is used to control the number of threads that can access a resource.
16.1	Partial classes	A code-behind page can now contain a partial class that extends the class in the main Web page.
16.1	PostBackUrl property	Permits a Web page to easily post its content to a Web page other than itself.
16.3	GridView control	ASP.NET's new control that supersedes the DataGrid control.
16.3	AppendDataBoundItems property	Indicates whether data bound to a list control should overwrite existing data in the control.
16.3	DataSource controls	The logic for accessing a data source can now be encapsulated in controls designed to serve as a bridge to a variety of data sources including SQL and XML.
16.4	ValidationGroup property	Allows validation controls to be grouped so that when a page is submitted, only controls whose validators are in a specific group are validated.
16.5	Master pages	Allow a Web page to be created as a template that provides a consistent interface to users. New content pages are created by replacing the placeholders in the template.
17.2	<connectionStrings> section	New section in the web.config file reserved for connection strings.
18.3	Web Service response handled as event	.NET now includes in a Web proxy a delegate and event that fire when a Web Service returns a response. An application can process the results in its custom event handler.