ComponentAttribute
public class ComponentAttribute : DictionaryBehaviorAttribute, IDictionaryKeyBuilder, IDictionaryBehavior, IDictionaryPropertyGetter, IDictionaryPropertySetter
Identifies a property should be represented as a nested component.
using System;
namespace Castle.Components.DictionaryAdapter
{
[AttributeUsage(AttributeTargets.Property, AllowMultiple = false, Inherited = true)]
public class ComponentAttribute : DictionaryBehaviorAttribute, IDictionaryKeyBuilder, IDictionaryBehavior, IDictionaryPropertyGetter, IDictionaryPropertySetter
{
public bool NoPrefix {
get {
return Prefix == "";
}
set {
if (value)
Prefix = "";
}
}
public string Prefix { get; set; }
string IDictionaryKeyBuilder.GetKey(IDictionaryAdapter dictionaryAdapter, string key, PropertyDescriptor property)
{
return Prefix ?? (key + "_");
}
object IDictionaryPropertyGetter.GetPropertyValue(IDictionaryAdapter dictionaryAdapter, string key, object storedValue, PropertyDescriptor property, bool ifExists)
{
if (storedValue == null) {
object obj = dictionaryAdapter.This.ExtendedProperties[property.PropertyName];
if (obj == null) {
PropertyDescriptor propertyDescriptor = new PropertyDescriptor(property.Property, null);
propertyDescriptor.AddBehavior(new KeyPrefixAttribute(key));
obj = dictionaryAdapter.This.Factory.GetAdapter(property.Property.PropertyType, dictionaryAdapter.This.Dictionary, propertyDescriptor);
dictionaryAdapter.This.ExtendedProperties[property.PropertyName] = obj;
}
return obj;
}
return storedValue;
}
public bool SetPropertyValue(IDictionaryAdapter dictionaryAdapter, string key, ref object value, PropertyDescriptor property)
{
dictionaryAdapter.This.ExtendedProperties.Remove(property.PropertyName);
return false;
}
}
}