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2009
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Visual Studio 2010 new Intellisense enhancements
In this post I am going to demonstrate through (screenshots mostly) some very handy, useful new features regarding Intellisense that ship with VS 2010. Through these features we can be more productive.
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Nullable data types in Visual Basic 9.0
I know we are in Visual Studio 2010 and VB 10.0 version of the language-compiler.Most people I know (in my country anyway) work still with VS 2008 and .Net 3.5 SP1 version.
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How to use extension methods with C# 3.0
In this post I would like to talk about a new feature in C# 3.0 that is called extension methods.
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ASP.NET 4.0 and ClientID Mode
In this post I will be talking about a new enhancement in ASP.NET 4.0.It is now possible to set the name of your controls ClientID attribute, thanks to the ClientIDMode property. Developers requested a better way of setting names of the web server controls and with the new version of ASP.NET 4.0, this is now a reality.
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Stored procedures with Linq to Sql in an ASP.Net application
First we need to create the 3 stored procedures that will insert,update and delete records from the Authors table
This is not a post on how to create stored procedures, so i am just going to paste here the complete stored procs.
DeleteAuthor
USE [pubs]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE [dbo].[DeleteAuthor]
@AuthorID nvarchar(20)
AS
BEGIN
DELETE FROM authors
WHERE au_id = @AuthorID
END
GO
UpdateAuthor
USE [pubs]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE [dbo].[UpdateAuthor]
@authorID varchar(11),
@lname nvarchar(50),
@fname nvarchar(50),
@phone char(12),
@address nvarchar(40),
@city nvarchar(40),
@state char(2),
@zip char(5),
@contract bit
AS
BEGIN
UPDATE authors
SET
au_lname=@lname,
au_fname=@fname,
phone=@phone,
address=@address,
city=@city,
state=@state,
zip=@zip,
contract=@contract
WHERE au_id = @authorID
END
GO
InsertAuthor
USE [pubs]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE [dbo].[InsertAuthor]
@id varchar(11),
@lName nvarchar(50),
@fname nvarchar(50),
@phone char(12),
@address nvarchar(40),
@city nvarchar(40),
@state char(2),
@zip char(5),
@contract bit
AS
BEGIN
INSERT INTO pubs.dbo.authors(
au_id,
au_lname,
au_fname,
phone,
address,
city,
state,
zip,
contract)
VALUES (
@id,
@lname,
@fname,
@phone,
@address,
@city,
@state,
@zip,
@contract)
END
GO
1) Launch Visual Studio 2008
2) Create an ASP.net web application. Use C# a your language of development
3) Name your project – solution as you want.
4) Open the Server Explorer and connect to the Pubs database.
5) Add a new item in your project, a Linq to SQL classes, a .dbml file. name it authors.dbml
6) Drag and drop from the Server explorer window the authors table into the designer area (on the .dbml file)
7) Right-Click on the designer area and show the “Show methods Pane”
8) Drag and drop the stored procedures from the Server explorer to the designer area
9) Select the author entity from the deisgner area and select the Properties window. In theDefault methods we need to assign the correct stored procs and not to leave the default option which is “use Runtime”. So please assign the different methods to their respective stored procs. Have a look at the picture below
10) We will use these stored procs that are methods now as far as LINQ is concerned to update,insert and delete records from the database.
11) Add a button in the Default.aspx file. Name it “Update”.Double click on this button. In the event handling routine type: -
Five common mistakes in the web.config file
In this post I wοuld like to talk about mistakes in web.config file in ASP.Net applications.
I would like to mention the five of the most common mistakes developers make when they manipulate the web.config file. -
How to build a simple ASP.Net application with C# and Entity Framework
In this post I will show you a step by step example on how to build an ASP.NET application with C# and Entity Framework. First let’s try to define what EF is and why it is going to help us to create easily data-centric applications.Entity Framework is an object-relational mapping (ORM) framework for the .NET Framework.EF addresses the problem of Object-relational impedance mismatch. I will not be talking about that mismatch because it is well documented in many sites on the Internet. Through that framework we can program against a conceptual application model instead of programming directly against a relational schema-model. By doing so we can decrease the amount of code we do write to access a data storage and thus decrease maintenance time.
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Viewstate management in ASP.Net 4.0
In ASP.NET 4.0 we have some very interesting new enhancements and new features.
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About Me
My name is Nikolaos Kantzelis, I am 34 years old and I come from Greece. I am based in Athens.I work as a freelance web and application's developer focusing on .Net Technologies.I also work as a Microsoft Certified Trainer and I usually train software engineers on ASP.NET,WCF,WPF and SQL Server.I am also an ASP.Net MVP.
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How to create,use and manipulate a web user control
User controls are reusable controls that can be defined once and used whenever we need them, in any of the .aspx pages of our application. We do have skins,themes and css to give a standard look to our website. User controls help to achieve that as well because since we define them once and use many times, thus making sure we do not have same controls on pages looking differently. When we make changes to a user control all these changes will be reflected to all instances of the control.
