Introduction
This blog post is the first of a series of shorter posts that will cover a number of brief LINQ topics.
This post will cover the Enumerable.Rangemethod. This is a ‘for free’ (part of the .Net Framework) method that I have found very useful. There have been a number of circumstances where I have used this method. This method offers a simple data source vital to addressing a number of classes of problems. With the use of this simple data source, some problems become trivial, rather than extremely complex with ‘vanilla’ LINQ.
There are a couple of subsequent posts, I will write, which build on the use of the Enumerable.Range method.
The Enumerable Range Method
This is quite a simple method. The MSDN documentation (see: Enumerable.Range) describes the method as follows.
“Generates a sequence of integral numbers within a specified range.”
This statement is almost dismissive of the many ways that this method provides a very flexible data source.
Some Examples Using Enumerable.Range
The following are a couple of simple examples of the use of the Enumerable.Range.
private void Simple_Range_Demos() { // A Simple Range Example var Test1 = from seq in Enumerable.Range(0, 10) select seq; Test1.ToOutput(); // Build a year calendar using Range DateTime Jan1 = new DateTime(2012, 1, 1); int Days = 0; if (DateTime.IsLeapYear(2012)) Days = 366; else Days = 365; var YearCalendar = from seq in Enumerable.Range(0, Days) select Jan1.AddDays(seq); return; }
Conclusions
These presented examples may seem trite and overly simple. In forthcoming post I will build upon the use of the Enumerable.Range to achieve some interesting, and useful LINQ techniques.