Addison Wesley Essential C Sharp 2 potx

... catch block, is equivalent to specifying a catch block that takes an object data type: for instance, catch(object exception){ }. And since all classes ultimately derive from object, a catch ... eBook ptg Chapter 4: Methods and Parameters194 ADVANCED TOPIC Generic catch It is possible to specify a catch block that takes no parameters, as shown in Listing 4 .22 . Listing 4 .22 : General Ca...

Ngày tải lên: 19/06/2014, 22:20

... list control that displays a collection of objects. Given the collection, a list control could use reflection to iterate over all the proper- ties of an object in the collection, defining a column ... (added in C# 4.0). Named parameters provide a mechanism for setting specific public properties and fields within the attribute constructor call, even though the constructor includes no corr...

Ngày tải lên: 19/06/2014, 22:20

... for a checked block uses the checked keyword, as shown in Listing 2. 22. Listing 2. 22: A Checked Block Example public class Program { public static void Main() { // int.MaxValue equals 21 47483647 ... {1}D", 4.2F, 4.2D); Output 3.6 shows the results of Listing 3.7. OUTPUT 3.6: 4 .2 != 4 .20 00000 625 8488 4 .2 != 4 .20 00000 625 8488 (float)4.2M != 4.2F 4 .20 00000 625 8488...

Ngày tải lên: 19/06/2014, 22:20

... contact to item could use a cast operator as follows: item = (PdaItem)contact; or even when no cast is necessary: contact = (Contact)contact; PdaItem item = contact; contact = (Contact)item; From ... instance). Static constructors are not called explicitly; instead, the runtime calls static constructors automatically upon first access to the class, whether via calling a regular construc...

Ngày tải lên: 19/06/2014, 22:20

... break; case 2: // break; case 3: // break; } ConnectionState connectionState; // switch (connectionState) { case ConnectionState.Connected: // break; case ConnectionState.Connecting: ... Latitude.cs Longitude.cs Arc.cs Microsoft (R) Visual C# 20 10 Compiler version 4.0 .20 506.1 Copyright (C) Microsoft Corporation. All rights reserved. csc.exe /R:Coordinates.dll Pro...

Ngày tải lên: 19/06/2014, 22:20

... // } class Program { static void Main() { // Allowed in C# 4.0 Pair<Contact> contacts = new Pair<Contact>( new Contact("Princess Buttercup"), new Contact("Inigo ... // } Because a base class constraint requires a particular base class, using struct or class with a base class constraint would be pointless, and in fact could allow for conflicting constr...

Ngày tải lên: 19/06/2014, 22:20

... Compiled Result of foreach on Collections System.Collections.Generic.Stack<int> stack = new System.Collections.Generic.Stack<int>(); System.Collections.Generic.Stack<int>.Enumerator ... in both collections to start. Concat() Combines two collections together to form a superset of both collections. Duplicate items are not removed from the resultant collection. Concat()w...

Ngày tải lên: 19/06/2014, 22:20

... 19.4. * Collection classes that implement IProducerConsumerCollection<T>. A common pattern enabled by concurrent collections is support for thread-safe access by producers and consumers. Classes ... Classes Collection Class Description BlockingCollection<T> Provides a blocking collection that enables producer/consumer scenarios in which producers write data into the collectio...

Ngày tải lên: 19/06/2014, 22:20

... processors can under- stand. Figure 21 .1 shows the process. In other words, C# compilation requires two steps: 1. Conversion from C# to CIL by the C# compiler 2. Conversion from CIL to instructions ... execution O Common Language Infrastructure 1 What Is the CLI? Base Class Library Common Language Specification Common Type System Common Intermediate Language 2 CLI Implementations...

Ngày tải lên: 19/06/2014, 22:20

... Modifiers 12 2 .2. 1 Controlling Access to Classes 12 2 .2. 2 Controlling Access to Class Members 12 2.3 Namespaces 14 2. 3.1 Declaring Namespaces 14 2. 3 .2 Importing Namespaces 16 2. 3.3 Controlling ... Namespace, Type, and Simple Names 23 1 A .2. 2 Types 23 1 A .2. 3 Variables 23 2 A .2. 4 Expressions 23 2 A .2. 5 Statements 23 3 A .2. 6 Namespaces 23 5 A .2. 7 Classes 23 5 A...

Ngày tải lên: 20/08/2012, 11:57