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POHow do I get all System.Attributes from overridden member?
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2012-02-08T18:44:55.240
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I am trying to find the DataMember attribute on properties of a class. I can find the attribute if it is on a property defined directly in the class. However if the property is defined in a base class and overridden, the attribute is not found. I have found several links stating you have to use System.Attribute to get this information. Below is a direct quote from <a href="http://msdn.microsoft.com/en-us/library/b6xa75x5%28v=vs.95%29.aspx" rel="nofollow">Microsoft</a>. <blockquote> Calling ICustomAttributeProvider.GetCustomAttributes on PropertyInfo or EventInfo when the inherit parameter of GetCustomAttributes is true does not walk the type hierarchy. Use System.Attribute to inherit custom attributes. </blockquote> This seems to fix the problem completely when using the full framework. This seems to fix the problem for ONLY "non-system" attributes in Silverlight (tested on Silverlight 3.0, 4.0, 5.0). My sample code below shows that DataMemberAttribute is not returned while another custom defined Attribute is returned. Is this a bug or am I missing something? <pre><code>public class CustomAttribute : Attribute { } public class Animal { [DataMember(), CustomAttribute()] public virtual decimal Weight { get; set; } } public class Dog : Animal { public override decimal Weight { get; set; } } public partial class MainPage : UserControl { public MainPage() { InitializeComponent(); var animalAttributes = Attribute.GetCustomAttributes(typeof(Animal).GetProperties()[0], true); var dogAttributes = Attribute.GetCustomAttributes(typeof(Dog).GetProperties()[0], true); //animalAttributes contains 2 entries (DataMember, CustomAttribute) //dogAttributes contains only 1 entry (CustomAttribute) } } </code></pre>
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<silverlight><reflection>
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How do I get all System.Attributes from overridden member?
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