High Cohesion, Loose Coupling

We are living in a time where businesses and the people running them often change their mind. I won’t be gong into details of why is that so, let’s just say it is a given, and let’s say they are right. It gives them the competitive edge when they are flexible. It is on us to provide that. We are witnessing a high demand for a maintainable software, software that can change easily over time, and where the most of the effort measured in time and people’s work on projects happens after the initial release…long after the initial release if you’re happy. Needless to say, if we want to software to succeed in the long run, we must set our own mindset towards a way, that will provide the businesses their much needed value in that long run.

I know the following is a bold statement, but, you cannot say this enough so that it doesn’t become true.

There is no silver bullet in software development.

The only thing that separates the good software from the bad one is the value of the software for the business at that particular point in time. In order to prolong the value of the software for a long period of time you have to make it respond easier to change.

How you achieve that is a completely different matter. It borderlines with art and being able to predict the future. But, the good thing is that there are a few guidelines that you can follow that can help you out.

Here, I try to put some light on two of those: cohesion and coupling….Read on…

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High Cohesion, Loose Coupling

It’s a Ninja Thing, You Wouldn’t Understand

It is a fast and dynamic world we are living in these days and as some of you may have noticed, I have a new job as of recently. I decided to become a consultant, and I could not think of a better place to pursue my career forward than tretton37. It seems that we are a perfect match. I have had more than a warm welcome since I started and everyone seems so nice. I already feel at home here. I decided to devote this article to tretton37. So, if you want to find out more, read on…

ABOUT TRETTON37

tretton37We are a knowledge-based company that helps our clients achieve their goals by delivering customized & well-crafted software solutions, utilizing primarily .NET platform with help of agile and lean development methods.

Continue reading “It’s a Ninja Thing, You Wouldn’t Understand”

It’s a Ninja Thing, You Wouldn’t Understand

Value and Reference

Whatever you do in the .NET framework deals either with value or reference types, yet, there seems to be a great deal of confusion in many discussions with fellow developers and on online forums and QA sites about where the actual variables reside. It is so basic yet a cause of so many misconceptions. For example one of them is that value types reside on the stack and that the reference objects reside on the heap. We will try to break up some of those misunderstandings by carefully examining and explaining what really happens(with the current implementation of the .NET runtime, which at the time of writing is .NET 4.5.1)

Before we dig deeper into this issue I just want to say that this is by no means a comprehensive guide to how types are handled in the .NET framework. It would take a whole book on that. I’m simply trying to create a nice picture and get a few things clear as a general concept by working the foundations and trying to create a picture of what is one possibility of what happens behind the scenes down at the deepest level.

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Value and Reference

Filtering duplicates out of an IEnumerable

Problem: Filtering out(removing duplicates) from an IEnumerable

One possible solution with using linq would be to group by key and take the first element of each group. Here’s an example:

enumerable.GroupBy(x => x.key).Select(g => g.First())
Filtering duplicates out of an IEnumerable

Providing a File for Download trough a Save As Dialog in ASP.NET

The question of providing a file trough a SaveAs dialog in a web browser appears very often in the forums and QA websites like Stackoverflow.

The default action of the web browser when a file is provided is to open it.
It automatically determines the file type and opens it inside the browser. An example would be a link to a .pdf, an excel or image file etc. When you click on it it opens the file in another tab or another page.

You have two options to achieve this depending whether you are using an already existing file or you are dynamically generating it(or getting it from a database or such).

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Providing a File for Download trough a Save As Dialog in ASP.NET

Using a .NET assembly in SQL Server 2008

Many times you fnd yourself in a situation where you have to do something that seems too complex to implement in TSQL or you just want to use some feature from the .NET framework, or you already have something implemented in an assembly and you want to use it in your stored procedure or function. While TSQL is very powerfull and there are lots of things you can accomplish the answer to the above is to just use a .NET assembly in your TSQL code.

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Using a .NET assembly in SQL Server 2008

Custom Membership User

Hello again.

In the first part of these mini series we discussed how you can create a custom membership provider and a custom role provider.
Many times you will find yourself in a situation where you need to store and retrieve more data for a specific user than it is available in the  MembershipUser class, which is the default for a MembershipProvider.
While there is a way to acomplish this by using profiles and the ProfileProvider class here I will show you how to accomplish this by creating a custom membership user.

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Custom Membership User