Showing posts with label LINQ to SQL. Show all posts
Showing posts with label LINQ to SQL. Show all posts

Monday, February 10, 2014

Northwind N-Tier Blueprint Application Using WPF/WCF/LINQ to SQL


Northwind N-Tier Blueprint is a Windows client application that can be used to manage the customers and their details of a fictitious company called Northwind Traders. This application is developed as a blueprint to showcase an enterprise standard architecture using the .NET 3.5 technologies like WPF, WCF, and LINQ to SQL. This can be used as a reference for building reliable applications with a service oriented and distributed architecture.


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This article is related to

C#,.NET,Architect,Intermediate,VS2012,.Net,Articles,Computer Tutorials,WPF,WCF,LINQ to SQL

Thursday, May 9, 2013

LINQ to SQL : CRUD operations and Stored procedures


The fundamentals operations that a storage system provides are the CRUD ones. CRUD stands for CREATE, READ, UPDATE, DELETE and corresponds to the SQL statements INSERT, SELECT, UPDATE and DELETE respectively. This post will show you how to query CRUD operations with LINQ to SQL and how to call a stored procedure defined in your SQL Server, as well. In a previous post we have seen how to create your entity model for your LINQ to SQL engine, in other words how to map your entity classes to your database tables. It is really important to know how to create and map your own entities but in most cases you might want to rely on particular tools which help you accomplish this task. Be aware that writing mapping information by hand can be time consuming and error-prone. In this post, we will use the SqlMetal.exe tool to generate the Northwind database entities. Then, we 'll use these entities in our project to query CRUD operations. Let's start.


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</ span>C#,.NET,Architect,Intermediate,VS2010,.Net,Articles,Computer Tutorials, LINQ to SQL, Store Procedures, LINQ, LINQ to SQL Storeprocedures

LINQ to SQL : Data Modeling – Inheritance – Relationships


LINQ to SQL is a LINQ implementation which can be used to query relational Microsoft SQL Server database, in an object oriented way. You can create an object model (classes) that maps your relational database tables, then query against this model using LINQ to SQL queries, which are eventually converted to the respective SQL native queries in a database level by the LINQ to SQL engine. If you are new to LINQ you can read the LINQ Basics post or the LINQ To Objects one, to get an idea. Before start writing LINQ to SQL queries, you need to define your entity model and map it to a relational database. Hence, the first thing I am gonna show you is how to create and configure your Entities in LINQ to SQL. Let's start. Read more of this post


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</ span>C#,.NET,Architect,Intermediate,VS2010,.Net,Articles,Computer Tutorials,LINQ,LINQ to SQL,Data Modeling,LINQ Relationships,LINQ to SQL Inheritance

Sunday, February 17, 2013

What is the difference between “LINQ to Entities”, “LINQ to SQL” and “LINQ to Dataset”


Here we will see what is the difference between "LINQ to Entities", "LINQ to SQL" and "LINQ to Dataset"?

All of them are LINQ - Language Integrated Query - so they all share a lot of commonality. All these "dialects" basically allow you to do a query-style select of data, from various sources.


Linq-to-SQL is Microsoft's first attempt at an ORM - Object-Relational Mapper. It supports SQL Server only. It's a mapping technology to map SQL Server database tables to .NET objects.

Linq-to-Entities is the same idea, but using Entity Framework in the background, as the ORM - again from Microsoft, but supporting multiple database backends

Linq-to-DataSets is LINQ, but using is against the "old-style" ADO.NET 2.0 DataSets - in the times before ORM's from Microsoft, all you could do with ADO.NET was returning DataSets, DataTables etc., and Linq-to-DataSets queries those data stores for data. So in this case, you'd return a DataTable or DataSets (System.Data namespace) from a database backend, and then query those using the LINQ syntax


I guess you came to this post by searching similar kind of issues in any of the search engine and hope that this resolved your problem. If you find this tips useful, just drop a line below and share the link to others and who knows they might find it useful too.

Stay tuned to my blogtwitter or facebook to read more articles, tutorials, news, tips & tricks on various technology fields. Also Subscribe to our Newsletter with your Email ID to keep you updated on latest posts. We will send newsletter to your registered email address. We will not share your email address to anybody as we respect privacy.


This article is related to
C#,.NET,Architect,Intermediate,VS2010,.Net,Articles,Computer Tutorials,LINQ to SQL,LINQ to Entities,LINQ to Datasets,ORM,,LINQ

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