c net framework 4 0 features

... Object đg chọn - SelectedIndex: Lấy giá trị chỉ m c ứng với ptử đg chọn. C c biến c : - MouseClick: xảy ra khi người dùng click chuột lên điều khiển. Chương 4: Điều khiển đ c biệt Chương này chúng ... Runtime Quản lý code th c thi c a chương trình, quản lý tiến trình, quản lý bộ nhớ, cung c p dịch vụ biên dịch, tích hợp và t c vụ truy c p từ xa. FCL: Framework Class Library Appli FCLCLR Operatio n ... form. C c bư c: - gọi điều khiển tooltip ra - Điều chỉnh c c thu c tính c a đối tượng tooltip - Chọn đối tượng (điều khiển_ control) c n giải thích. Ví dụ c n giải thích cho textbox, chọn textbox...

... code: IdProduct: 46 -Price: 100 0 IdProduct:27-Price: 200 0 IdProduct: 14 -Price: 500  IdProduct:11-Price:3 50  IdProduct: 46 -Price: 100 0 This result might seem unexpected because the rst and the last rows appear to be identical. ... relationships publicclassCustomer{ publicstringName; publicstringCity; publicOrder[]Orders; } publicstructOrder{ publicintQuantity; publicProductProduct; publicCustomerCustomer; } publicclassProduct{ publicintIdProduct; publicdecimalPrice; publicstringProductName; publicOrder[]Orders; } Let’s ...  customers=NewCustomer(){ NewCustomerWith{.Name="Paolo",.City="Brescia", .Country=Countries.Italy,.Orders=NewOrder(){ NewOrderWith{.IdOrder=1,.Quantity=3,.IdProduct=1, .Shipped=False,.Month="January"}, NewOrderWith{.IdOrder=2,.Quantity=5,.IdProduct=2, .Shipped=True,.Month="May"}}}, NewCustomerWith{.Name="Marco",.City="Torino", .Country=Countries.Italy,.Orders=NewOrder(){ NewOrderWith{.IdOrder=3,.Quantity= 10, .IdProduct=1, .Shipped=False,.Month="July"}, NewOrderWith{.IdOrder= 4, .Quantity= 20, .IdProduct=3, .Shipped=True,.Month="December"}}}, NewCustomerWith{.Name="James",.City="Dallas", .Country=Countries.USA,.Orders=NewOrder(){ NewOrderWith{.IdOrder=5,.Quantity= 20, .IdProduct=3, .Shipped=True,.Month="December"}}}, NewCustomerWith{.Name="Frank",.City="Seattle", .Country=Countries.USA,.Orders=NewOrder(){ NewOrderWith{.IdOrder=6,.Quantity= 20, .IdProduct=5, .Shipped=False,.Month="July"}}}}  products=NewProduct(){ NewProductWith{.IdProduct=1,.Price= 10} , NewProductWith{.IdProduct=2,.Price= 20} , NewProductWith{.IdProduct=3,.Price= 30} , NewProductWith{.IdProduct= 4, .Price= 40 }, NewProductWith{.IdProduct=5,.Price= 50} , NewProductWith{.IdProduct=6,.Price= 60} } www.it-ebooks.info ...

... Glance Introduction xiii CHAPTER 1 ADO .NET Disconnected Classes 1 CHAPTER 2 ADO .NET Connected Classes 63 CHAPTER 3 Introducing LINQ 143 CHAPTER 4 LINQ to SQL 237 CHAPTER 5 LINQ to XML 295 CHAPTER ... RejectChanges method rolls DataTable content back to what it was since its creation or before the last time AcceptChanges has been called. Note that both AcceptChanges and RejectChanges typically ... the Microsoft Download Center at http://technet.microsoft.com/en-us/evalcenter/cc 442 495. ■ SQL Server 200 8 Developer Edition is recommended because some labs and sample code use this edition...

... configure controls and create the user inter- face. Controls are graphical components that provide reproducible functionality that can be used to create a consistent user interface experience ... the opacity value can range from 0% to 100 %, indicating the degree of opacity. An opacity of 100 % indicates a form that is completely opaque (solid and visible), and a value of 0% indicates ... 300 aForm.Height = 200 ' Set the Size property to a new instance of the Size structure aForm.Size = New Size( 300 , 200 ) // C# // Set the Width and Height separately aForm.Width = 300 ;...

... the Web.cong le: Sample of Visual Basic .NET Code <ServiceContract([Namespace] := "")> _ Public Class PersonService End Class Sample of C# Code [ServiceContract(Namespace = "")] ... a Concurrent Multiuser Environment 203 Planning for Multiuser Conicts 203 Understanding Deadlock Conicts 205 Designing Concurrency for Web Services 206 Using Cross-Tier Distributed Transactions ... 1 84 Abstracting from the Service Layer 185 Objective Summary 187 Objective Review 187 Objective 3.3: Design Data Caching 189 Understanding Caching 189 Using MemoryCache 1 90 Caching Web Services...

... AdventureWorks 200 8Entities object. /// </summary> public AdventureWorks 200 8Entities(EntityConnection connection) : base(connection, "AdventureWorks 200 8Entities") { this.ContextOptions.LazyLoadingEnabled ... association (FK object) for each relationship. OK, now on to the CSDL. The CSDL Section The CSDL (Conceptual Schema Definition Language), as the name suggests, is simply a conceptual schema. In other ... AdventureWorks 200 8Entities(string connectionString) : base(connectionString, "AdventureWorks 200 8Entities") { this.ContextOptions.LazyLoadingEnabled = true; OnContextCreated(); }...

... the EntityConnection class and the EntityCommand class. EntityConnection Unlike other connection classes, the EntityConnection class is what provides a connection to an EDM, not directly to ... EntityConnection class has several constructors, one of which accepts a string such as the one we used in the recent example, which is the name of the compiled EDM. using (EntityConnection conn ... System.Data.Objects and System.Data.Objects.DataClasses namespaces. The ObjectContext resides through these namespaces. This class encapsulates an ObjectStateManager object that tracks objects during CUD...

... ',@12 =45 . 20, @13=5,@ 14= N'S ',@15=N'M ',@16=N'M ',@17=1,@18=129,@19=' 200 9 -09 -07  12 :07 :26. 04 3 948 2',@ 20= &apos ;00 000 000 -00 00- 000 0 -00 00- 000 000 000 000 ',@21=' 200 9 -09 -07  ... datetime2(7)', @0= N'Inverted Kayaba',@1=N'IKAYA-R 209 ', @2=1,@3=1, @4= N'Red',@5=2 50, @6=2 50, @7=2 500 .00 00, @8=3 900 .00 00, @9=N&apos ; 40 M',@ 10= N'CM ',@11=N'LB ... 12 :07 :26. 04 3 948 2',@ 20= &apos ;00 000 000 -00 00- 000 0 -00 00- 000 000 000 000 ',@21=' 200 9 -09 -07  12 :07 :26. 04 3 948 2' The relationship defined in the EDM between ProductModel and Product is accomplished via the new foreign key support in EF 4. 0 and the associated...

... PublicKeyToken=89 845 dcd 808 0cc91" #> <#@ assembly name="Microsoft.SqlServer.ConnectionInfo, Version= 10. 0 .0. 0, Culture=neutral, PublicKeyToken=89 845 dcd 808 0cc91" #> <#@ ... Version= 10. 0 .0. 0, Culture=neutral, PublicKeyToken=89 845 dcd 808 0cc91" #> <#@ assembly name="Microsoft.SqlServer.Management.Sdk.Sfc, Version= 10. 0 .0. 0, Culture=neutral, PublicKeyToken=89 845 dcd 808 0cc91" ... CHAPTER 8 ■ T4 CODE GENERATION 135 public void DoCounter() { Process[] procs = Process.GetProcesses(); foreach (Process proc in procs) System.Console.WriteLine(proc.ProcessName);...

... Project creation screen—nothing new here. Pick the project type, enter the project name and click OK. Figure 9-1. Project creation Once the project has been created, add a new ADO .NET ... of the complex type property name along with an underscore character (“_”) and the name of the corresponding complex type scalar property name. Date Created: 11/28/ 200 9 12 :05 : 34 Generated ... validation class. To do so, add a new class to the project, call it IValidator.cs, and click OK. In the class, add the following code: using System; using System.Collections.Generic; using...

... in a disconnected mode, CHAPTER 10 ■ CODE-ONLY DEVELOPMENT 1 74 using Microsoft.Data.Objects; using CodeOnlyData; namespace CodeOnlyUI { class ContactConfiguration : EntityConfiguration<Contact> ... project is the data project that will contain the POCO classes that will mimic the EDM. Figure 10- 1. Create class library project Once the project has been created, delete the Class1.cs class ... classes: ã Contact.cs ã Employee.cs We are ready to add code. The Contact and Employee classes are our POCO classes and are essentially called POCO entities. Let’s work with the Contact class...

... DeleteContact ã InsertContact ã UpdateContact Keep the pluralization and FK checkboxes checked as shown in Figure 12-2, and click Finish. We’ll use the stored procedures later in the chapter ... [global::System.Data.Services.Common.EntitySetAttribute("Contacts")] [global::System.Data.Services.Common.DataServiceKeyAttribute("ContactID")] public partial class Contact : global::System.ComponentModel.INotifyPropertyChanged ... won’t select the Use Original Value checkboxes, but you recall from Chapter 6 that this provides us a way to check concurrency in our application code. Figure 12-7 shows the mapping. CHAPTER...

... you call SaveChanges. We can efficiently and elegantly handle these exceptions by using try/catch blocks supplied by the .NET Framework. Try/Catch Blocks Try/Catch blocks can be the cure ... creates three connection constructors. The following code shows the three constructors for the Chapter 12 project. public partial class EF40Entities : ObjectContext { #region Constructors ... that is used to indicate an anomalous exception. try { EF40Entities context = new EF40Entities (); var query = from con in context.Contacts select con; } catch (Exception ex) { throw;...

... tiền tệ- CurrencyID Chú thích- Description 9. CertificateTyp - Thông tin c c loại chứng chỉ ID c a loại chứng chỉ - CertificateTypeID Tên loại chứng chỉ- TypeName Chú thích- Description 10. ProfessionalTitle ... kỷ luật c a c ng ty. C c ch c năng người quản lý muốn th c hiên: Nếu chọn Thêm mới:Ch c năng “Thêm mới” đư c th c hiện. Nếu chọn lưu lại: Ch c năng “ Chỉnh sửa” đư c th c hiện. Nếu chọn ch c năng ... c c ứng dụng .Net Microsoft định nghĩa c c dịch vụ khối hợp nhất .Net sau đây: Authentication: Khi sử dụng c c công nghệ Authentication (chứng th c) c ng như Pasport(hộ chiếu) c a Microsoft c c...