XSoftscript 

A simple and efficient implementation of a Circular Buffer (also known as a Ring Buffer) for .NET. This data structure is ideal for managing fixed-size data collections, such as logs, streaming data,... More information

You can use it to communicate with the Database

The purpose of this code is to provide a utility for serializing objects of different types to XML and saving them to files with the extensions ".xml" or ".txt". It utilizes the "DataContractSerializer" class... More information