Apress pro LINQ Language Integrated Query in C# 2008 phần 7 pptx
Apress pro LINQ Language Integrated Query in C# 2008 phần 7 pptx
... do?
The LINQ to DataSet operators allow a developer to perform LINQ queries on a DataSet, and
since a DataSet can be obtained using normal ADO.NET SQL queries, LINQ to DataSet allows LINQ
queries ...
query on data in a database using ADO.NET to obtain a DataSet, then turn right around and query
that data again using LINQ to DataSet, all within several lines of code. In re...
Apress pro LINQ Language Integrated Query in C# 2008 phần 1 docx
... Service-Oriented
Architecture, 3e
Beginning ASP.NET 3.5
Data Access, 2e
Beginning
C# 2008 Databases
Beginning C# 2008
Pro LINQ: Language
Integrated Query
in C# 2008
www .apress. com
SOURCE CODE ONLINE
Companion eBook
... print for content only—size & color not accurate spine = 1. 176 " 624 page count
Books for professionals By professionals
®
Pro LINQ: Lan...
Apress pro LINQ Language Integrated Query in C# 2008 phần 2 ppsx
... into the entity classes at key
points in time.
Finally, query expressions provide that warm fuzzy feeling when first seeing a LINQ query that
makes you want to get on board with LINQ. Nothing ... name);
}
Listing 2-18 is the equivalent query using the query expression syntax:
Rattz _78 9-3C02.fm Page 37 Tuesday, October 16, 20 07 2:19 PM
44
CHAPTER 2
■ C# 3.0 LANGUAGE EN...
Apress pro LINQ Language Integrated Query in C# 2008 phần 3 pdf
... example.
Reprinted Here for Convenience Is Listing 1-3
using System;
using System .Linq;
using System.Data .Linq;
using nwind;
Northwind db = new Northwind(@"Data Source=.\SQLEXPRESS;Initial Catalog=Northwind");
var ... number 2.
Listing 4-48. Returning a Sequence of Ten Integers All With the Value Two
IEnumerable<int> ints = Enumerable.Repeat(2, 10);
foreach(int i in ints...
Apress pro LINQ Language Integrated Query in C# 2008 phần 4 ppt
... resulting value is treated as
string content.
Rattz _78 9-3C 07. fm Page 2 07 Tuesday, October 23, 20 07 4: 37 PM
194
CHAPTER 7
■ THE LINQ TO XML API
Each of these problem domains has been a stumbling ... xmlns:linqdev="http://www.linqdev.com">
<linqdev:BookParticipant />
</linqdev:BookParticipants>
Rattz _78 9-3C 07. fm Page 199 Tuesday, October 23, 20 07...
Apress pro LINQ Language Integrated Query in C# 2008 phần 5 ppt
... Tuesday, October 23, 20 07 4: 37 PM
252
CHAPTER 7
■ THE LINQ TO XML API
XProcessingInstruction.Target on XProcessingInstruction Objects and
XProcessingInstruction.Data on XProcessingInstruction Objects
To ... value of a processing instruction, simply modify the Target and Data properties of the
XProcessingInstruction object. Listing 7- 72 is an example.
Listing 7- 72. Updating a Pr...
Apress pro LINQ Language Integrated Query in C# 2008 phần 6 ppt
... XElement("Book", " ;Pro LINQ: Language Integrated Query in C# 2008& quot;)),
new XElement("BookParticipant",
new XElement("Name", "John Q. Public"))};
Rattz _78 9-3.book ... make it interesting, I will query on the type attribute, and I will try
this one in query expression syntax, as shown in Listing 9-3.
Listing 9-3. Obtai...
Apress pro LINQ Language Integrated Query in C# 2008 phần 8 pps
... DataContext.
Listing 14-1 contains an example of inserting a record into the database.
Listing 14-1. Inserting a Record by Inserting an Entity Object into Table<T>
// 1. Create the DataContext.
Northwind ... SQL, thrown in to boot.
■Tip LINQ to SQL is an entry-level ORM tool that permits powerful SQL queries.
In addition to providing LINQ query capabilities, as long as your q...
Apress pro LINQ Language Integrated Query in C# 2008 phần 9 ppt
... to the query for the respective column. Listing 14-16 contains an example programmati-
cally building a query for such an interface.
Listing 14-16. Programmatically Building a Query
Northwind db ... Build: 3.5.2 070 6.1
Rattz _78 9-3C14.fm Page 442 Tuesday, October 16, 20 07 1: 27 PM
CHAPTER 15 ■ LINQ TO SQL ENTITY CLASSES
461
Notice that in the raising of the PropertyChanged even...
Apress pro LINQ Language Integrated Query in C# 2008 phần 10 ppsx
... it in Listing 16 -7.
Listing 16 -7. The First [Your]DataContext Constructor Prototype Connecting to a Database
Northwind db = new Northwind(@"Data Source=.\SQLEXPRESS;Initial Catalog=Northwind");
IQueryable<Customer> ... mapping file to perform
a LINQ to SQL query without using any attributes.
Listing 16-9. The Third DataContext Constructor Prototype Connecting to a Da...
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