linq to sql examples in c video

... 4. Gắn nối c c câu truy vấn LINQ to SQL vào c c control LINQ to SQL C c câu truy vấn LINQ trả về kết quả mà nó sẽ implement interrface IEnumerable – đây c ng là interface mà c c control ASP.NET ... kh c nhau. LINQ to SQL Tutorial 3 M c l c Bài 1: Sử dụng LINQ to SQL 6 1. LINQ to SQL là gì? 6 2. Mô hình hóa CSDL dùng LINQ to SQL: 6 3. Tìm hiểu lớp DataContext 7 4. C c ví dụ LINQ ... hình hóa CSDL dùng LINQ to SQL: Visual Studio “Orcas” đã tích hợp thêm một trình thiết kế LINQ to SQL như một c ng c dễ dàng cho vi c mô hình hóa một c ch tr c quan c c CSDL dùng LINQ to SQL. ...

Ngày tải lên: 12/01/2013, 16:18

... context.SubmitChanges(ConflictMode.ContinueOnConflict); } catch (ChangeConflictException) { foreach (var conflict in context.ChangeConflicts) { conflict.Resolve(RefreshMode.KeepCurrentValues); foreach (var ... Hirsch St. Bnei Brak 51202 Israel LINQ to Relational Data • LINQ to DataSet – Leveraging the existing investment • LINQ to SQL – Designer-generated mapping – Custom mapping, ORM facilities • LINQ ... operator – The LINQ to SQL query provider translates it to a WHERE on the discriminator column / /LINQ: var cars = from car in context.GetTable<Vehicle>() .OfType<Car>() select car; / /SQL: ...

Ngày tải lên: 12/01/2013, 16:18

Ngày tải lên: 06/08/2013, 17:30

Ngày tải lên: 06/08/2013, 17:33

... queries that interact with data sourced from SQL Server, either directly (LINQ to Entities) or indirectly (LINQ to DataSet). LINQ to SQL, also included as a native LINQ provider within the .NET ... exists. C# decimal pending = context.AgedInvoices(whichCustomer, 90); Visual Basic Dim pending As Decimal = context.AgedInvoices(whichCustomer, 90) Dwonloaded from: iDATA.ws Chapter 20 Using LINQ to SQL 343 Summary This ... iDATA.ws Chapter 20 Using LINQ to SQL 335 C# using (SalesOrderLink context = new SalesOrderLink(connectionString)) { var results = from cu in context.Customers orderby cu.FullName select new { CustomerID...

Ngày tải lên: 03/10/2013, 00:20

... Writing Windows C# Programs 47 Objects in C# 47 Managed Languages and Garbage Collection 48 Classes and Namespaces in C# 48 Building a C# Application 49 The Simplest Window Program in C# ... equal to Table 2-5: Comparison Operators in C# Combining Conditions When you need to combine two or more conditions in a single if or other logical statement, you use the symbols for the logical ... operators, to give hints to the compiler to allow it to produce more efficient code, and to reduce typing when terminals were very slow. Today, modern compilers produce identical code for both forms...

Ngày tải lên: 18/10/2013, 17:15

... . 151 10.2ConstructorsandDestructors 156 10.2.1TheDefaultConstructor 156 10.2.2TheCopyConstructor 156 10.2.3 A Specialised Constructor 157 10.2.4Destructor 157 10.3AccessingPrivateClassMembers ... from the landing gear and may have caused the retrorockets to cut out too early. J. Pitt-Francis, J. Whiteley, Guide to Scienti c Computing in C+ +, Undergraduate Topics in Computer Science, DOI 10.1007/978-1-4471-2736-9_2, ... inheritance,for instance, is so powerful when we come to explain it in Chap. 7. 1.1.2 Why You Should Write Scienti c Programs in C+ + Since you have selected a book with the words C+ +” and “Scienti c Computing” in...

Ngày tải lên: 19/03/2014, 14:12

... subdirs in the project le located in the parent directory, which would cause a Makefile to be produced in the parent directory and in each subdirectory.  e s e c o n d l i n e i n c l u d ... main block On most platforms, you can compile and run this program using the ubiquitous GNU C compiler, gcc . e command to compile a C+ + program is g++ , which is a program that calls gcc ... accesses its data directly , but the variable px accesses the same data indirectly. is is why the word indirection is often used to characterize the process of accessing data through a pointer....

Ngày tải lên: 24/03/2014, 01:21