MemberInfo.GetAttribute

Mit folgenden Extension-Methoden können Attribute eines Members abgerufen werden.

public static A GetAttribute<A>(this MemberInfo memberInfo, Boolean inherit)
  where A : Attribute
{
  object[] attributes;
  if ((attributes = memberInfo.GetCustomAttributes(typeof(A), inherit)).Length > 0)
    return (A) attributes[0];

  return default(A);
}

public static A[] GetAttributes<A>(this MemberInfo memberInfo, Boolean inherit)
  where A : Attribute
{
  object[] attributes;
  if ((attributes = memberInfo.GetCustomAttributes(typeof(A), inherit)).Length > 0)
    return (from a in attributes select (A) a).ToArray();

  return null;
}

So wird die GetAttribute-Methode verwendet…

class Class1
{
  [System.Xml.Serialization.XmlElement("property1")]
  public string Property1 { get; set; }
}

...

using System.Reflection;
using System.Xml.Serialization;

...

PropertyInfo p = typeof(Class1).GetProperty("Property1");
XmlElementAttribute a = p.GetAttribute<XmlElementAttribute>(false);

...