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.

There was an error processing the request

While running and ASP.NET MVC application on a production server, we could encounter the following error: There was an error processing the request. In this article, we understand what it means and how to have more information about the error.

ASP.NET IP address in-depth analysis using the RFC3912 - WHOIS protocol

Sometimes it can rise the need of having to thoroughly analyze the IP addresses of visitors to our site in order to change the behavior of the same depending on the information that reveals us the address.

jQuery UI Datepicker calendar in ASP.NET MVC

jQuery UI Datepicker is a widget that allows you to select a date from a popup or inline calendar (as the official page says). In this article, we look at how to use it in an ASP.NET MVC page view, focusing to localization issues, too.

A potentially dangerous Request.Form value was detected from the client

In ASP.NET, we could encounter the following error: A potentially dangerous Request.Form value was detected from the client. In this article, we understand what it exactly means and how to solve 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.

List to DropDownList - ASP.NET MVC - C#

In a previous article, we looked at how to fill a DropDownList with the values contained in a Dictionary. Let's see how to do a similar task with a List.

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