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Posted By

jmcd on 02/12/10


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Expression Linq


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khouser


Dynamicaly Creating Expression Accessing a Property

 / Published in: C#
 

Creating the equivalent of (ParentType x) => x.SomeProperty when the property is unknown until runtime

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  1. var parameterExpression = Expression.Parameter(typeof(ParentType), "x");
  2. var memberExpression = Expression.Property(parameterExpression, propertyName);
  3. var result = (Expression<Func<ParentType, PropertyType>>)Expression.Lambda(memberExpression, parameterExpression);

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