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8 Articles match "LINQ"
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Related DevelopMentor Courses
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Essential LINQ with the Entity Framework
including extension methods and lambda expressions Use LINQ to filter, sort, and group in-memory collections of objects Create LINQ to SQL queries to execute SQL Server stored procedures and perform updates in real-world database applications Write LINQ to XML queries to search XML documents and save them to the file system Build a rich conceptual entity model using the EF and to visually map it to a database schema Use LINQ to Entities to write strongly typed queries against the Entity Data Model Detect and resolve concurrency conflicts with both LINQ to SQL and LINQ to Entities Execute business
DevelopMentor Courses
- Friday, June 12, 2009
Essential LINQ with the Entity Framework 4.0
including extension methods and lambda expressions Use LINQ to filter, sort, and group in-memory collections of objects Create LINQ to Entities queries to execute stored procedures and perform updates in real-world database applications Write LINQ to XML queries to search XML documents and save them to the file system Build a rich conceptual entity model using the EF and to visually map it to a database schema Learn how to implement Repository and Unit of Work design patterns with EF 4.0 Employ Test-Driven Development methodologies with the Entity Framework Detect and resolve
DevelopMentor Courses
- Monday, October 12, 2009
Mastering .NET 3.5 featuring LINQ, WPF, WCF & WF
Use LINQ to filter, sort, and group in-memory collections of objects Create LINQ to SQL queries to execute SQL Server stored procedures and perform updates Write LINQ to XML queries to search XML documents and save them to disk Build rich client applications with XAML and WPF that run standalone or in a browser Use WPF data binding and XAML to separate your code and UI elements Build service-oriented WCF services, as well as REST-based services and RSS / ATOM feeds Manage concurrency and state with WCF and handle exceptions appropriately Design robust workflow-oriented programs with Windows Workflow
DevelopMentor Courses
- Friday, June 12, 2009
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56 Articles match "LINQ"
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The Latest from DevelopMentor
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EF4 compared to NHibernate
Last week while teaching my new LINQ and Entity Framework course I got a question asking me to compare EF4 with NHibernate . EF supports LINQ out of the box (NH doesn’t have it yet)
Ayende mentions that NH will add LINQ with version 3.0, Not having worked extensively with NHibernate, I wasn’t in a position to address the question. Then yesterday I received an email containing a link to a blog post by Oren Eini (aka Ayende Rahien) doing just such a comparison.
Tony and Zuzana's World
- Wednesday, January 13, 2010
ELINQ with EF 4.0 Course Update
I’ve been working feverishly the last couple of months to update my DevelopMentor course: Essential LINQ with Entity Framework 4.0 . LINQ to Objects 3. LINQ to XML
LINQ to SQL 5. Here is a breakdown of the course content:
Day 1:
1.
Tony and Zuzana's World
- Tuesday, December 29, 2009
Faking Enums in Entity Framework 4.0
I’ve had a great deal of experience using enums with LINQ to SQL (via Plinqo ), and it’s nice to know how to do it in EF, while waiting for the feature to come out-of-the-box in a future version.
I ran across a great post from Alex James on how to fake enums in EF4. http://blogs.msdn.com/alexj/archive/2009/06/05/tip-23-how-to-fake-enums-in-ef-4.aspx
Tony and Zuzana's World
- Sunday, December 20, 2009
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Processing Text Files with LINQ
Pretty boring stuff, so my mind started to wander and I started thinking about the loops I was writing and how I could replace them with LINQ.
With all of this information, we might write code like the following (without using any LINQ):
The first thing we need is a way to convert the lines in a text file into an IEnumerable<T> –without that, LINQ won’t be possible. I was recently writing some code to stream through a large text file, processing the lines it found that matched a regular expression. To demonstrate what I came up with, I thought I’d
Jason Diamond
- Sunday, September 7, 2008
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LINQ to SQL SubmitChanges()
Tags: LIN The DataContext.SubmitChanges() method will update the database in the following order:
- Perform all inserts
- Perform all updates
- Perform all deletes
Running Running SQL Profiler while running the
The Blomsma Code
- Sunday, November 30, 2008
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Dynamic Sorting with LINQ
I’ve been working with ASP.NET MVC and LINQ recently and was working on a controller action that “returned” a collection of objects (wrapped in a JsonResult ). Thanks to the way LINQ defers the actual execution of queries as late as possible, it’s possible to write code like the following to “dynamically” sort (using the Person.Contact table from the AdventureWorks database as an example):
Ever spend too much time working on a clever solution to a problem only to discover that your original approach was perfectly fine to begin with?
The action
Jason Diamond
- Monday, September 1, 2008
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Topological Sort Extension Method
NET C# LINQ Programmin I recently needed to sort a list of nodes by their dependencies. After a bit of Googling, I discovered this is called a topological sort .
Here’s the generic extension method I managed to come up with:
public static class TopologicalSorter
{ 123;
public static IEnumerable
Jason Diamond
- Sunday, June 7, 2009
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LINQ to SQL is dead
It would appear that LINQ to SQL is running on a dead end track.
At PDC the announcement was made that no more investments in LINQ to SQL are made
and and the Entity Framework will absorb any features that LINQ to SQL has and that are
worth Is LINQ to SQL Dead?
At worth preserving.
The
The Blomsma Code
- Saturday, November 1, 2008
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Using Rx (Linq to Events) with WPF
driven programming through LINQ. A recent series of blog entries at http://themechanicalbride.blogspot.com/ introduced
the the Rx framework (System.Reactive.dll) which is an assembly used in the Silverlight
toolkit toolkit for UI testing purposes.
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LINQ to SQL to remain alive a little longer? LINQ to SQL changes in .NET 4.0
I guess the success for LINQ to SQL makes it hard for Entity Framework to absorb the
full LINQ
to LINQ to SQL class designer
Now Code generation (SQL Metal + LINQ to SQL class designer)
Stored Tags: full feature set in a single (v2) release. The team has been working on a bunch of
fixes
The Blomsma Code
- Tuesday, June 2, 2009
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