Using LINQ with ASP.NET (Part 1)
page 1 of 12
Published: 14 May 2006
Unedited - Community Contributed
Abstract
In the first part of the series, Scott demonstrates the usage of LINQ with ASP.NET 2.0 with the help of code samples.
by Scott Guthrie
Feedback
Average Rating: 
Views (Total / Last 10 Days): 101124/ 170

Introduction

Republished With Permission - Original Article

One of the new things I’m super excited about right now is the LINQ family of technologies that are starting to come out (LINQ, DLINQ, XLINQ and others soon).

LINQ will be fully integrated with the next release of Visual Studio (code-name: Orcas) and it will include some very cool framework and tool support (including full intellisense and designer support).  Last week the LINQ team released the May CTP drop of LINQ that you can download from here.  What is cool about this CTP is that it works with VS 2005, and allows you to start learning more about it immediately.  It incorporates a bunch of customer feedback (for example: support for stored procedures in DLINQ), and also includes a built-in ASP.NET Web-Site Project to enable you to leverage it with ASP.NET apps (note: you can also use LINQ with the new VS 2005 Web Application Project option as well).

I’m going to put together a few blog postings over the next few weeks that show off ways to use LINQ/DLINQ/XLINQ within ASP.NET projects.  This first walkthrough below will help you get started and introduce some of the important LINQ concepts.  You can follow-along by downloading the May CTP LINQ preview above and typing in the code below (I list all of it below), or you can download and run the complete .zip file of my samples here (note: you still need to install the LINQ May CTP drop for the .zip file of samples to work). 

Note: LINQ, DLINQ and XLINQ will be fully supported in both C# and VB.  I am using C# for the example belows.


View Entire Article

User Comments

Title: linq   
Name: rohit
Date: 2012-10-11 5:04:12 AM
Comment:
thanks a lot,but need more explanation
Title: uk   
Name: hjkhjk
Date: 2012-07-30 2:22:48 AM
Comment:
hjkhjkhjkhjk
Title: Linq   
Name: hanston
Date: 2012-06-04 2:02:15 PM
Comment:
thanks a lot....but the images aren't shown.......
Title: Language Integrated Query   
Name: Daniel Kamroon
Date: 2012-03-14 7:22:12 AM
Comment:
Thank you very much. This has become my best material on LINQ topic. You made it very simple and understandable, thanks for sharing with us. Some other good articles on LINQ I was found over internet during searching this topic which also explained very well about LINQ, URL links of those posts are....
http://msdn.microsoft.com/en-us/library/bb907622.aspx
http://mindstick.com/Articles/9ca8fabd-49ef-4e4d-855b-74fc523d9138/?LINQ%20%28Language%20Integrated%20Query%29
http://www.codeproject.com/Articles/188935/LINQ-Demo-with-ASP-NET-Web-Application

Lastly, I would like to say thanks to everyone for your precious post.
Title: Sql Linq -simple query   
Name: Manish Vala
Date: 2011-02-12 4:23:52 AM
Comment:
protected void Page_Load(object sender, EventArgs e)
{
//DateTime d = DateTime.Now;

string[] Name = {" Manish"," Sunil", "Rohan", "Ashok", "Mahendra" };

GridView1.DataSource = from name in Name where name.Length > 5 orderby name select name.ToUpper();
GridView1.DataBind();}
Title: SQL LINQ-A query   
Name: Subhashini Janakiraman
Date: 2010-12-16 2:48:23 AM
Comment:
In the statement below which you have used,I want to know what Northwind refers to.Is it a dataset or a class?.Please reply me so.
Northwind db=new Northwind();
Title: thanks alot   
Name: avrail
Date: 2010-09-26 1:38:46 AM
Comment:
thanks a lot for this article
Title: Using LINQ with ASP.NET   
Name: S.Kumar
Date: 2010-04-08 3:52:48 PM
Comment:
Really a nice article, gave me a nice overview about LINQ
Title: er   
Name: sdf
Date: 2009-11-14 5:46:55 AM
Comment:
protected void Page_Load(object sender, EventArgs e)
{
string[] cities = { "London", "Amsterdam", "San Francisco", "Las Vegas",
"Boston", "Raleigh", "Chicago", "Charlestown",
"Helsinki", "Nice", "Dublin" };

GridView1.DataSource = from city in cities
where city.Length > 4
orderby city
select city.ToUpper();

GridView1.DataBind();
}
Title: nice   
Name: vice
Date: 2009-11-14 5:45:23 AM
Comment:
GridView1.DataSource = from city in cities
where city.Length > 4
orderby city
select city.ToUpper();
Title: jeyakumar   
Name: jayakumar
Date: 2009-11-14 5:40:46 AM
Comment:
it looking like me
Title: ok   
Name: kumar
Date: 2009-11-14 5:37:29 AM
Comment:
nice but not understand
Title: Topics   
Name: Dhanya
Date: 2009-10-19 6:09:06 AM
Comment:
I am not understand this topics..
Title: Trying To Get a Handle On This LINQ Stuff   
Name: Vibha Kant Pandey
Date: 2009-04-21 3:05:18 AM
Comment:
This article really enabled me to understand the concept of linq. the only problem i faced with this article is that i was not redirected to the correct place to download Linq May ctp
Title: About LINQs in ASP.NET   
Name: SitaRamReddy.Vempada
Date: 2009-04-01 5:47:16 AM
Comment:
This article help me a lot in LINQ concept, I thank to all who are in this unit

Thanks & Regards,
srvempada
Title: Using LINQ with ASP.NET (Part 1)   
Name: joseph jelasker
Date: 2009-03-28 1:52:20 AM
Comment:
This article really enabled me to understand the concept of linq. the only problem i faced with this article is that i was not redirected to the correct place to download Linq May ctp


Thanks a lot
Title: LINQ in 2005 and 2008   
Name: Manigandan
Date: 2008-12-16 6:38:07 AM
Comment:
1.We are having this LINQ concept in VS2005 itself...
What is extra facility added in VS2008.

2.If i want to install LINQ separately in VS2005, What is the software that i have to install?
Title: Good one   
Name: Shailendra
Date: 2008-12-09 2:24:22 AM
Comment:
Thanks for all, its very easy to know about linq from these articles.

thanks once again
Title: Trying To Get a Handle On This LINQ Stuff   
Name: D Wiley
Date: 2008-11-21 9:21:36 AM
Comment:
This is on of the best walkthroughs I have seen on the subject.
Title: Leraning LINQ   
Name: Manjeev kumar singh
Date: 2008-10-03 4:00:41 AM
Comment:
This one is most useful article LINQ on web. its really good start for how is beginner in LINQ....
Really thanks
Title: Using Richer Collections   
Name: Nithya K
Date: 2008-09-18 6:58:04 AM
Comment:
Now i got .Its my mistake.
It is very useful
Title: Using Richer Collections   
Name: Nithya K
Date: 2008-09-18 6:00:18 AM
Comment:
i got an error while executing
Title: Using Richer Collections   
Name: Nithya K
Date: 2008-09-18 5:53:19 AM
Comment:
\
\S
\
\
Title: Leraning LINQ   
Name: vanitha
Date: 2008-09-16 1:31:46 AM
Comment:
Very useful in learning the basic concepts of LINQ.
Title: Using LINQ with ASP.NET   
Name: Durai karthik M
Date: 2008-03-15 7:20:50 AM
Comment:
Very clear to understand the LINQ concept . Keep up the good work
Title: -   
Name: martin
Date: 2008-01-21 4:41:46 AM
Comment:
The images aren't shown... you need to remake the picture HTML






Community Advice: ASP | SQL | XML | Regular Expressions | Windows


©Copyright 1998-2017 ASPAlliance.com  |  Page Processed at 2017-11-22 12:15:10 AM  AspAlliance Recent Articles RSS Feed
About ASPAlliance | Newsgroups | Advertise | Authors | Email Lists | Feedback | Link To Us | Privacy | Search