LOGIC Library

This site is the Logic involvement in sharing expertise and skills acquired in daily work. The goal is to create a solid knowledge base and share best practices in software development and systems management.

More info about us can be found on logicsistemi.it.

ASP.NET MVC 4 tutorial for web developers - part 4

The Visual Studio template creates some standard views with instructions to start with personalization. In this post we will analyze the controller for the default URL and the view associated with it.

An object with the same key already exists in the ObjectStateManager

When working with Entity Framework, we could encounter the following error: An object with the same key already exists in the ObjectStateManager. The ObjectStateManager cannot track multiple objects with the same key. In this article, we understand what it exactly means and how to solve it.

ASP.NET MVC 4 tutorial for web developers - part 3

We have a working example of a .Net MVC 4 application and it's now time to take a look at how this paradigm, in the Microsoft version, works.

After a fast description of the MVC paradigm we'll analyze how it is implemented in the test application.

ASP.NET MVC 4 tutorial for web developers - part 2

In this post we'll set up all the tools required to start developing an ASP.NET MVC Project. Base libraries such as .Net Framework and ASP.NET MVC 4 Framework are free, others can be found in a free version or in a more powerful commercial version. What it is sure is that you have to own a Microsoft Windows Operating System.

ASP.NET MVC 4 tutorial for web developers - part 1

With this post I start a long tutorial dedicated to PHP and VBScript ASP software developers who want to understand the Microsoft ASP.NET MVC framework approach and create in a short period of time their first web application.

Joomla! 2.5 form validation - part 3

It's time to complete our validation example by managing the required attributes server side and by adding custom validation rules server and client side.

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