Getenumerator c yield return example: >> http://bit.ly/2eVzkik << (download)

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21 Jul 2014 MoveNext() is a method that is called over and over and every time it has to move to the next item. This means you can't implement it by simply
There are two types of yield statements - yield return (for returning the next item) and yield break (to Here's an example, this time implementing IEnumerable :
The following example has a yield return statement that's inside a for loop. Each iteration of the foreach statement body in Process
30 Jul 2011 For example, if your foreach loop iterates over just the first 5 items of 1 Likewise you will want to use yield with IEnumerable<T> return values in .. GetEnumerator() { foreach ( T c in elements ) yield return c; } new public T
13 Jan 2010 Inside a method that returns IEnumerable<T> , yield return has to return T , not an IEnumerable<T> . See this question for more details and a sample implementation - but GetEnumerator(); try { while (true) { if (enumerator.
How to: Create an Iterator Block for a Generic List (C# Programming Guide) is to implement the GetEnumerator method on the IEnumerable interface, for example: IEnumerator GetEnumerator() { for (int i = 0; i < 10; i++) { yield return i; } }.
Getting Too Cute with C# Yield Return . A method that returns an IEnumerable and does so using yield return isn't Consider the code example above. . is a custom iterator that wraps itself around the GetEnumerator() method of the source
Our first sample will just yield the numbers 0 to 9 in sequence. .. GetEnumerator() deals with initializing the new iterator, and then returns it ready for action.
1 Aug 2013 A new IEnumerator class is created, which contains your original code, albeit rewritten so that it executes as you'd expect. The GetEnumerator() method contains brand-new generated code that simply instantiates the IEnumerator defined above and returns it.
8 Dec 2011 footprint and better performance. The yield return statement is one of the more mysterious, yet very useful constructs in C#. With yield return it is possible to return an IEnumerable<T> without creating a collection of any sort (no array, no list, no anything): . GetEnumerator() { return this.IEnumerable<int>.

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August 2017