|
|
|
|
|
Home
»
LINQ
»
Executing Stored Procedure using LINQ
|
|
|
|
Author Rank :
|
|
|
Page Views :
|
2382
|
|
Downloads :
|
21
|
|
Rating :
|
Rate it
|
|
Level :
|
Beginner
|
|
|
|
|
Download
Files:
|
|
|
|
|
|
|
|
|
|
|
|
In this article I will show you how to execute stored procedure using LINQ.
From MSDN:
LINQ
is a set of extensions to the .NET Framework that encompass
language-integrated query, set, and transform operations. It extends C#
and Visual Basic with native language syntax for queries and provides
class libraries to take advantage of these capabilities.
The sample database I am using for this article has the following table
Open Visual Studio and create a windows application. Here I have named the application LINQaaplinVB.
For
any database application, the first step is to create connection with
the database. Open "Server Explorer" from the View menu and create a
connection. The steps for creating the connection is shown below:
1. Right click "Data Connections" and select "Add Connection".
2. In
connection wizard supply the exact values as you supplied during SQL
Server installation process. Select the database you want to use for the
application.
You can also test the connection from this wizard. If everthing is OK, move to the next step.
Now we are done with the connection and let's move to our application.
Add
"LINQ to SQL Classes" template by right clicking the project and then
select "Add New Item". Name your template. The name of my template is
Employee.dbml.
Now you are provided with Object Relational Designer (O/R Desinger) for this template file.
My store procedure will look like this:
ALTER PROCEDURE [dbo].[getempname]
@date1 DateTime,
@date2 DateTime
AS
BEGIN
SET NOCOUNT ON;
SELECT empname, empdesg, empdept, empadd, empphone
from emp_master
where emp_master.empjoin between @date1 and @date2
END
Next
step is to add the stored procedure to the designer. For this expand
the connection you created earlier and select the stored procedure from
the list. Drag the stored procedure "getempname" to the designer.
Don't forget to save the project.
One
thing to note here that, when we added stored procedure to the O/R
designer we are provided with DataContext object for our project. The
name of the object will be same as your tamplate file you created
earlier.
Now we can use the DataContext object and try to extact records from our database table.
In my application, I added a listbox for showing the names of the employees.
In
this example, I am showing how to get the employee details who joined
in the year 2003. For this I have added a DataGridView.
The code is as follows:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim db As New EmployeeDataContext
DataGridView1.DataSource = db.getempname(#1/1/2003#, #12/31/2003#).ToList()
End Sub
The result of the above code is as follows:
Conclusion:
Here in this article we have seen how to execute stored procedure using LINQ. In later articles we will see more of LINQ.
|
|
Comment Request!
Thank you for reading this post. Please post your feedback, question, or comments about this post
Here.
|
|
|
|
|
Login
to add your contents and source code to this article
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
C# Consulting is founded in 2002 by the founders of C# Corner. Unlike a traditional
consulting company, our consultants are well-known experts in .NET and many of them
are MVPs, authors, and trainers. We specialize in Microsoft .NET development and
utilize Agile Development and Extreme Programming practices to provide fast pace
quick turnaround results. Our software development model is a mix of Agile Development,
traditional SDLC, and Waterfall models.
|
|
Click here to learn more about C# Consulting. |
|
|
|
|
|
|
|
Introducing MaxV - one click. infinite control. Hyper-V Hosting from MaximumASP.
Finally – a virtual platform that delivers next-generation Windows Server 2008 Hyper-V virtualization technology from a managed hosting partner you can truly depend on. Visit www.maximumasp.com/max for a FREE 30 day trial. Hurry offer ends soon.
Climb aboard the MaxV platform and take advantage of High Availability, Intelligent Monitoring, Recurrent Backups, and Scalability – with no hassle or hidden fees.
As a managed hosting partner focused solely on Microsoft technologies since 2000, MaximumASP is uniquely qualified to provide the superior support that our business is built on. Unparalleled expertise with Microsoft technologies lead to working directly with Microsoft as first to offer IIS 7 and SQL 2008 betas in a hosted environment; partnering in the Go Live Program for Hyper-V; and product co-launches built on WS 2008 with Hyper-V technology.
|
Dynamic PDF
ceTE software specializes in components for dynamic PDF generation and manipulation. The DynamicPDF™ product line allows you to dynamically generate PDF documents, merge PDF documents and new content to existing PDF documents from within your applications.
|
Nevron Chart for .NET 2010.1 Now Available
The leading .NET charting control now features PDF, Flash and Silverlight export, visualization of large datasets and more. Deliver true charting functionality to your BI, Scorecard, Presentation or Scientific apps. Download evaluation now.
|
ASP.NET 4 Hosting
Get 2 Months Free of ASP.NET Hosting for Only $4.95/month! Receive FREE MS SQL and MySQL Databases Including ASP.NET 4/3.5, MVC 3.0, Silverlight 4, Windows 2008/IIS 7.0 Plus FREE IIS 7 Modules. Host UNLIMITED ASP.NET Web Sites – Click Here!
|
|
|
|
|
|
|
|
|
|
|
|
|