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    <p><em>It sounds like you need to get canonicalized date sorting even though your date is represented as a string, yes?</em> Well, you can use LINQ's <code>OrderBy</code> operator, but you will have to parse the string into a date to achieve correct results:</p> <pre><code>items = items.OrderBy(item =&gt; DateTime.Parse(item.subLevelItem.DeliveryTime)) .ToList(); </code></pre> <p><strong>Update:</strong></p> <p>I've added this in for completeness - a real example of how I use ParseExact with Invariant culture:</p> <pre><code>var returnMessagesSorted = returnMessages.OrderBy((item =&gt; DateTime.ParseExact(item.EnvelopeInfo.DeliveryTime, ISDSFunctions.GetSolutionDateTimeFormat(), CultureInfo.InvariantCulture))); return returnMessagesSorted.ToList(); </code></pre> <p>You can always implement a separate IComparer class, it's not fun, but it works well:</p> <pre><code>public class TopLevelItemComparer : IComparer&lt;topLevelItem&gt; { public int Compare( topLevelItem x, topLevelItem y ) { return DateTime.Parse(x.subLevelItem.DeliveryTime).CompareTo( DateTime.Parse(y.subLevelItem.DeliveryTime) ); } } items.Sort( new TopLevelItemComparer() ); </code></pre> <p>Be aware that most <code>Sort()</code> methods in the .NET framework accept an <code>IComparer</code> or <code>IComparer&lt;T&gt;</code> which allows you to redefine the comparison semantics for any type. Normally, you just use <code>Comparer&lt;T&gt;.Default</code> - or use an overload that essentially supplies this for you.</p>
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    1. COsounds good, I guess adding a format string (with parseExact) and invariant culture to the mix couldn't hurt?
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    2. CO@JL: The more specific you can make your code the better. Letting Parse() attempt to auto-detect your date format isn't a great idea when you can avoid it. The exception is when you are writing internationalized code and you want to use the thread's current culture settings.
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