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POSystem.Linq.Expressions.Expression for .OrderBy function
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  1. POSystem.Linq.Expressions.Expression for .OrderBy function
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    copied!<p>I have a line section of my code that is repetitive.</p> <p>You will see the lambda expression below repeat 4 times</p> <pre><code>x =&gt; x.GetValue&lt;string&gt;("City")).ThenByDescending(x =&gt; HelperFunctions.strToTZDateTime(x.GetValue&lt;string&gt;("EventStartStr"), x.GetValue&lt;string[]&gt;("EventTimeZone")[0].ToString()) </code></pre> <p>The code example :</p> <pre><code>//SORT DATA switch (SortDetails) { case ("Date"): default: if (SortOrder == "ASC") { _allEvents = _allEvents.OrderBy(x =&gt; HelperFunctions.strToTZDateTime(x.GetValue&lt;string&gt;("EventStartStr"), x.GetValue&lt;string[]&gt;("EventTimeZone")[0].ToString())); } else { _allEvents = _allEvents.OrderByDescending(x =&gt; HelperFunctions.strToTZDateTime(x.GetValue&lt;string&gt;("EventStartStr"), x.GetValue&lt;string[]&gt;("EventTimeZone")[0].ToString())); } break; case ("Location"): if (SortOrder == "ASC") { _allEvents = _allEvents.OrderBy(x =&gt; x.GetValue&lt;string&gt;("Country")).ThenBy(x =&gt; x.GetValue&lt;string&gt;("ProvinceState")).ThenBy(x =&gt; x.GetValue&lt;string&gt;("City")).ThenBy(x =&gt; HelperFunctions.strToTZDateTime(x.GetValue&lt;string&gt;("EventStartStr"), x.GetValue&lt;string[]&gt;("EventTimeZone")[0].ToString())); } else { _allEvents = _allEvents.OrderByDescending(x =&gt; x.GetValue&lt;string&gt;("Country")).ThenByDescending(x =&gt; x.GetValue&lt;string&gt;("ProvinceState")).ThenByDescending(x =&gt; x.GetValue&lt;string&gt;("City")).ThenByDescending(x =&gt; HelperFunctions.strToTZDateTime(x.GetValue&lt;string&gt;("EventStartStr"), x.GetValue&lt;string[]&gt;("EventTimeZone")[0].ToString())); } break; } </code></pre> <p>I would like to take the first line and make it into something I can just plop into the OrderBy's.</p> <p>Something like : </p> <pre><code>System.Linq.Expressions.Expression&lt;Func&lt;DynamicContent, DateTime&gt;&gt; sortLambda = x =&gt; HelperFunctions.strToTZDateTime(x.GetValue&lt;string&gt;("EventStartStr"), x.GetValue&lt;string[]&gt;("EventTimeZone")[0].ToString()); </code></pre> <p>into :</p> <pre><code>allEvents = _allEvents.OrderBy(sortLambda); </code></pre> <p>Unfortunately that didn't seem to work well.</p>
 

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