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Posted By

JanVanRyswyck on 07/27/09

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Last Edited at 07/27/09 02:47pm

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ReflectionHelper

/ Published in: C#
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  1. public static class ReflectionHelper
  2.     {
  3.         private sealed class AssemblyMarker {}
  4.  
  5.         public static PropertyInfo GetProperty<T>(Expression<Func<T, Object>> expression)
  6.         {
  7.             Check.Argument(expression, "expression").IsNotNull();
  8.  
  9.             MemberExpression memberExpression;
  10.             if(ExpressionType.Convert == expression.Body.NodeType)
  11.             {
  12.                 var body = (UnaryExpression)expression.Body;
  13.                 memberExpression = body.Operand as MemberExpression;
  14.             }
  15.             else
  16.             {
  17.                 memberExpression = expression.Body as MemberExpression;
  18.             }
  19.  
  20.             if(null == memberExpression)
  21.             {
  22.                 var message = ResourceLoader<AssemblyMarker>.GetString("InvalidMemberExpression");
  23.                 throw new InvalidOperationException(message);
  24.             }
  25.  
  26.             return memberExpression.Member as PropertyInfo;   
  27.         }
  28.     }

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