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    <p>Many of the other answers recommend using <code>continue</code>, which may very well help you do what you need to do. However, in the interests of showing manually moving the enumerator, first you must <em>have</em> the enumerator, and that means writing your loop as a <code>while</code>.</p> <pre><code>using (var enumerator = times.GetEnumerator()) { DateTime time; while (enumerator.MoveNext()) { time = enumerator.Current; // pre-condition code while (condition) { if (enumerator.MoveNext()) { time = enumerator.Current; // condition code } else { condition = false; } } // post-condition code } } </code></pre> <p>From your comments:</p> <blockquote> <p>How can the foreach loop advance it if it doesn't implement the IEnumerator interface?</p> </blockquote> <p>In your loop, <code>time</code> is a <code>DateTime</code>. It is not the object that needs to implement an interface or pattern to work in the loop. <code>times</code> is a sequence of <code>DateTime</code> values, it is the one that must implement the enumerable pattern. This is generally fulfilled by implementing the <code>IEnumerable&lt;T&gt;</code> and <code>IEnumerable</code> interfaces, which simply require <code>T GetEnumerator()</code> and <code>object GetEnumerator()</code> methods. The methods return an object implementing <code>IEnumerator&lt;T&gt;</code> and <code>IEnumerator</code>, which define a <code>bool MoveNext()</code> method and a <code>T</code> or <code>object Current</code> property. But <code>time</code> cannot be cast to <code>IEnumerator</code>, because it is no such thing, and neither is the <code>times</code> sequence.</p>
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    1. USAnthony Pegram
    1. USAnthony Pegram
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    1. COThank for the excellent explanation! This answers my question as to how to manually increment the enumerator and it explains why my casting didn't work. I assumed that time WAS the enumerator, but time is actually just the variable that holds the value of the enumerators Current property (correct me if im wrong). This also explains why custom classes which never inheritted from IEnumerator work inside IEnumerable containers.
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    2. COwatch out for the non-terminating while (condition) at the end of the iteration
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    3. CO@David, yes, good point.
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