Christoph De Baene (de p0l) - Reflection and Generics

Sunday, October 14, 2007

On my current project I had the need to iterate through the properties of an object with reflection and to check if one of the properties is a generic List type, e.g. IList<int>, IList<Customer>, etc. To check through reflection on a generic type, you need to use the GetGenericTypeDefinition method.

Copy Code

foreach (PropertyInfo propertyInfo in entity.GetType().GetProperties())
{
   if (propertyInfo.PropertyType.IsGenericType &&
       typeof(List<>).IsAssignableFrom(propertyInfo.PropertyType.GetGenericTypeDefinition()))
   {
      IEnumerable enumerable = propertyInfo.GetValue(entity, null) as IEnumerable;
      IEnumerator enumerator = enumerable.GetEnumerator();

      while (enumerator.MoveNext())
      {
         // do something
      }
   }
}

Sunday, October 14, 2007 10:49:11 PM (Romance Standard Time, UTC+01:00)

Comments [1] -

Wednesday, October 17, 2007 7:24:19 PM (Romance Standard Time, UTC+01:00)

Hi Delarou,

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At the moment, we have a need for extra .net/sql server/ classic asp + vb6 skills.

We came across you via some user group listing.

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Thanks and best regards,

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8 Av. du GEAI
1170 Watermael-Boitsfort
Belgium

Tel/Fax: +32 2 742 0587
GSM: +32 486 423 697
http://www.superfandango.com
michael.finlan@superfandango.com

Michael Finlan

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