c 4 0 language improvements

... List contacts = Contact.SampleData(); var q = from c in contacts where c. State == ”WA” orderby c. LastName, c. FirstName select c; foreach (Contact c in q) Console.WriteLine(” {0} {1}”, c. FirstName, ... QA76.73.L228M 345 201 0 00 6.7’882—dc22 200 9 04 9 5 30 Copyright © 201 0 Pearson Education, Inc All rights reserved Printed in the United States of America This publication is protected by copyright, and ... Introducing LINQ // join calls with contacts data foreach (Contact in contacts) { if (callGroups.ContainsKey(con.Phone)) { List calls = callGroups[con.Phone]; // calculate the total call...

Ngày tải lên: 24/12/2013, 08:16

... 2-2 Escape sequence characters Char Meaning Value \' Single quote 0x 002 7 \" Double quote 0x 002 2 \\ Backslash 0x 00 5C \0 Null 0x 000 0 \a Alert 0x 000 7 \b Backspace 0x 000 8 \f Form feed 0x 00 0C \n New ... rounding errors: decimal notQuiteWholeM = m+m+m+m+m+m; double notQuiteWholeD = d+d+d+d+d+d; // 1 .00 000 000 000 000 000 000 000 000 02M // 0. 99999999999999989 Numeric Types | 27 C# Basics float and double ... line 0x 000 A \r Carriage return 0x 000 D \t Horizontal tab 0x 000 9 \v Vertical tab 0x 000 B The \u (or \x) escape sequence lets you specify any Unicode character via its fourdigit hexadecimal code: char...

Ngày tải lên: 24/01/2014, 18:55

... xi 40 9 41 1 41 2 41 4 41 8 42 3 42 5 42 9 43 0 43 1 43 3 43 4 43 6 44 3 44 4 44 5 44 9 45 1 45 2 45 3 45 5 45 7 Part IV: Advanced C# 21 LINQ Query an Object Collection ... 279 2 80 282 283 285 288 288 291 295 296 297 300 300 301 302 3 04 308 313 3 14 317 319 323 327 329 3 30 3 30 331 335 337 339 341 344 344 344 345 346 347 348 x C# 4. 0 How-To Draw Flicker-Free ... 201 202 202 203 2 04 2 04 208 209 213 2 14 2 14 216 2 20 222 229 231 233 237 238 2 40 245 246 247 248 2 50 258 259 261 262 266 268 2 70 271 273 2 74 Contents ix Part III: User Interaction 15 Delegates,...

Ngày tải lên: 25/01/2014, 18:20

... 38 48 58 68 78 88 98 10 19 29 39 49 59 69 79 89 99 20 30 40 50 60 70 80 90 20 30 40 50 60 70 80 90 This for loop makes use of the modulus operator described later in this chapter The value of ... Isolated Storage 43 8 43 9 44 8 45 4 45 8 47 4 47 6 48 4 Chapter 22 Programming NET and COM Importing ActiveX Controls Importing COM Components Exporting NET Components P/Invoke ... The char type represents a Unicode character char literals can be simple, Unicode, or escape characters enclosed by single quote marks For example, A is a simple character while \u0 04 1 is a Unicode...

Ngày tải lên: 05/03/2014, 21:20

... 40 0 Lazy Initialization 40 0 Summary 40 3 10 Exception Handling 40 5 Multiple Exception Types 40 5 Catching Exceptions 40 7 General Catch Block 40 9 Guidelines for Exception Handling 41 1 Defining Custom ... 43 8 Constraints 43 9 Interface Constraints 44 2 Base Class Constraints 44 4 struct/class Constraints 44 5 Multiple Constraints 44 6 Constructor Constraints 44 6 Constraint Inheritance 44 7 www.it-ebooks.info ... the C# Compiler and the CLI Platform 865 B Full Source Code Listings 869 C Concurrent Classes from System Collections Concurrent 895 D C# 2 .0 Topics 899 E C# 3 .0 Topics 903 F C# 4. 0 Topics 905 ...

Ngày tải lên: 08/03/2014, 19:20

... ISBN 978 -0- 672-3 306 3-6 (pbk : alk paper) C# (Computer program language) I Title QA76.73 .C1 54W38 201 0 00 5.13’3—dc22 201 000 2735 Printed in the United States of America First Printing March 201 0 Trademarks ... initialization code In these cases, you usually factored out the common code into a common function that each constructor called / /C+ + example class MyCppClass { public: MyCppClass() { Init(); } MyCppClass(int ... specific base class constructor Solution: Similar to calling other constructors from the constructor of a class, you can call specific constructors of a base class If you not specify a constructor,...

Ngày tải lên: 15/03/2014, 02:20

... Alert 0x 000 7 \b Backspace 0x 000 8 \f Form feed 0x 00 0C \n New line 0x 000 A \r Carriage return 0x 000 D \t Horizontal tab 0x 000 9 \v Vertical tab 0x 000 B The \u (or \x) escape sequence lets you specify ... Result ~ Complement ~0xfU 0xfffffff0U & And 0xf0 & 0x33 0x 30 | Or 0xf0 | 0x33 0xf3 ^ Exclusive Or 0xff 00 ^ 0x0ff0 0xf0f0 Shift right 0x 20 >> 0x 10 Numeric Types | ... example: char newLine = '\n'; char backSlash = '\\'; The escape sequence characters are: Char Meaning Value \' Single quote 0x 002 7 \" Double quote 0x 002 2 \\ Backslash 0x 00 5C \0 Null 0x 000 0 \a Alert 0x 000 7...

Ngày tải lên: 24/04/2014, 14:53

... WCF Project WCF Contracts WCF Test Client and Host Hosting a WCF Service x | Table of Contents www.it-ebooks.info 47 3 47 4 47 7 47 9 48 0 48 1 48 1 48 2 48 3 48 6 Writing a WCF Client Bidirectional Communication ... Adapting Stream: CryptoStream In Memory Alone: The MemoryStream Representing Binary As Text with Base 64 Encoding Summary 42 4 42 5 42 5 42 8 42 9 43 0 43 1 43 6 43 6 43 9 44 3 44 4 44 4 44 7 12 XML ... Whitespace Checking Character Types Encoding Characters Why Encodings Matter Encoding and Decoding Why Represent Strings As Byte Sequences? Summary 3 40 341 341 343 344 346 347 348 349 353 355 357 360...

Ngày tải lên: 24/04/2014, 15:52

... 2-2 Escape sequence characters Char Meaning Value \' Single quote 0x 002 7 \" Double quote 0x 002 2 \\ Backslash 0x 00 5C \0 Null 0x 000 0 \a Alert 0x 000 7 \b Backspace 0x 000 8 \f Form feed 0x 00 0C \n New ... rounding errors: decimal notQuiteWholeM = m+m+m+m+m+m; double notQuiteWholeD = d+d+d+d+d+d; // 1 .00 000 000 000 000 000 000 000 000 02M // 0. 99999999999999989 Numeric Types | 27 C# Basics float and double ... line 0x 000 A \r Carriage return 0x 000 D \t Horizontal tab 0x 000 9 \v Vertical tab 0x 000 B The \u (or \x) escape sequence lets you specify any Unicode character via its fourdigit hexadecimal code: char...

Ngày tải lên: 12/07/2014, 21:20

... Result ~ Complement ~0xfU 0xfffffff0U & And 0xf0 & 0x33 0x 30 | Or 0xf0 | 0x33 0xf3 ^ Exclusive Or 0xff 00 ^ 0x0ff0 0xf0f0 Shift right 0x 20 >> 0x 10 Numeric Types | ... char backSlash = '\\'; The escape sequence characters are: Char Meaning Value \' Single quote 0x 002 7 \" Double quote 0x 002 2 \\ Backslash 0x 00 5C \0 Null 0x 000 0 \a Alert 0x 000 7 \b Backspace 0x 000 8 ... Backspace 0x 000 8 \f Form feed 0x 00 0C \n New line 0x 000 A \r Carriage return 0x 000 D \t Horizontal tab 0x 000 9 \v Vertical tab 0x 000 B The \u (or \x) escape sequence lets you specify any Unicode character...

Ngày tải lên: 12/07/2014, 21:20

... Typically, you define a name for each bit, and you can also name some common combinations: [Flags] enum Toppings { None = 0x 00, // Special zero value ChocolateSauce = 0x01, ToffeeSauce = 0x02, ChocolateSprinkles ... Plane("BA0 04 9 ") { Direction = DirectionOfApproach.Approaching, SpeedInMilesPerHour = 1 50 }; Console.WriteLine( "Your plane has identifier {0} ," + " and is traveling at {1 :0. 00} mph [{2 :0. 00} kph]", ... the whole class We could add the constructor in Example 3 -43 to our Plane class to illustrate this Example 3 -43 Static constructor static Plane() { Console.WriteLine("Plane static constructor");...

Ngày tải lên: 06/08/2014, 09:20

... AddProcess(Action action) { AddProcess(action, null); } public void AddProcess(Action action, Check quickCheck) { processes.Add( new ActionCheckPair { Action = action, QuickCheck = quickCheck ... public void Process(Document doc) { // First time, the quick check foreach( ActionCheckPair process in processes) { if (process.QuickCheck != null && !process.QuickCheck(doc)) 158 | Chapter 5: Composability ... static DocumentProcessor Configure() { DocumentProcessor rc = new DocumentProcessor(); rc.AddProcess(DocumentProcesses.TranslateIntoFrench); rc.AddProcess(DocumentProcesses.Spellcheck); rc.AddProcess(DocumentProcesses.Repaginate);...

Ngày tải lên: 06/08/2014, 09:20

... 1, 0, 1, { 1, 0, 1, { 1, 0, 1, { 1, 0, 0, { 1, 1, 1, }; new int[,] 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, ... 1, 0, 0, 0, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1 1 1 1 1 }, }, }, ... lists Stopwatch sw = new Stopwatch(); sw.Start(); int itemCount = 500 000 ; List items = new List(itemCount); for (int i = 0; i < itemCount; ++i) { items.Add(new CanChange { Number...

Ngày tải lên: 06/08/2014, 09:20

... double value = 12. 345 6; Console.WriteLine(value.ToString( "00 .######")); value = 1.2 345 6; Console.WriteLine(value.ToString( "00 .00 000 0")); Console.WriteLine(value.ToString("## .00 000 0")); We see the ... time formats: 24/ 12/ 200 1 13: 14 24/ 12/ 200 1 13: 14: 15 24 December 200 1 13: 14 24 December 200 1 13: 14: 15 Another common format is the “round trip” shown in Example 10- 36 As for the numeric types, this ... character (0x09), backspace (0x09), bell (0x07), and delete (0x7F) The rest are called the printable characters, and include space (0x 20) , which is not a control character, but a “blank” printable character;...

Ngày tải lên: 06/08/2014, 09:20

... Key= "00 2 40 00 0 04 8 00 000 9 40 00 000 0 602 000 000 2 40 00 0525 341 3 100 04 0 00 001 000 100 A5FE 848 98F 190EA 642 3A7D7FFB1AE778 141 753A6F8F8235CBC63A 9C5 D 04 1 4 3C7 E0A2BE1FC61FA6EBB52E7FA9B 48 D22BAF 402 7763A12 04 6 DB4A94FA35 04 8 35ED9F29CD031 600 D511593 906 6AABE59A4E61E932AEF ... Admin 4. 0. 303 19.1 Copyright (c) Microsoft Corporation All rights reserved Record #1 [Assembly]

Ngày tải lên: 06/08/2014, 09:20

... creates the proxy: ChatCallback callbackObject = new ChatCallback(); InstanceContext clientContext = new InstanceContext(callbackObject); ChatServiceClient chatProxy = new ChatServiceClient(clientContext); ... public void Disconnect() { IChatClient clientCallback = OperationContext.Current.GetCallbackChannel(); DisconnectClient(clientCallback); } Once again, we get hold of the callback interface, ... [System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4. 0. 0 .0" )] [System.ServiceModel.ServiceContractAttribute( ConfigurationName="ChatService.IChatService"] public interface IChatService { } [System.ServiceModel.OperationContractAttribute(...

Ngày tải lên: 06/08/2014, 09:20

... different approach than transactions Optimistic Concurrency Optimistic concurrency describes an approach to concurrency where instead of enforcing isolation, which is how transactions usually ... might need to control database-specific aspects of the transaction that an implicit transaction cannot reach Object Context | 579 These transaction models are not specific to the EF You can use the ... txScope = new TransactionScope()) { var customersWithOrders = from cust in dbContext.Customers where cust.SalesOrderHeaders.Count > select cust; foreach (var customer in customersWithOrders) { Console.WriteLine("Customer...

Ngày tải lên: 06/08/2014, 09:20

... Ineffectual cancellation private CancellationTokenSource cancelSource; void OnButtonClick(object sender, RoutedEventArgs e) { cancelSource = new CancellationTokenSource(); } TaskScheduler uiScheduler ... static, which you can use to create objects The methods are as follows: CreateComInstanceFrom Creates instances of COM objects CreateInstanceFrom Creates a reference to an object from a particular ... the class to record its code-maintenance history: [BugFixAttribute(121,"Jesse Liberty", "01 /03 /08 ")] [BugFixAttribute( 107 ,"Jesse Liberty", "01 / 04 / 08 ", Comment="Fixed off by one errors")] public class...

Ngày tải lên: 06/08/2014, 09:20

... Content="Buttons" FontSize=" 30" />

Ngày tải lên: 06/08/2014, 09:20