///<summary>
/// Figure out the concrete type to create given the type attribute on the given
/// xml reader. If not present, throws an exception.
///</summary>
///
///<returns>
///true if the unrecognized element was deserialized successfully; otherwise, false. The default is false.
///</returns>
///
///<param name="reader">An input stream that reads XML from the configuration file. </param>
///<param name="elementName">The name of the unrecognized element. </param>
///<exception cref="T:System.ArgumentException">elementName starts with the reserved prefix "config" or "lock".</exception>
///<exception cref="T:System.Configuration.ConfigurationErrorsException">The element specified in elementName is the <clear> element.</exception>
protected override bool OnDeserializeUnrecognizedElement(
string elementName, XmlReader reader)
{
if (elementName == base.AddElementName)
{
string typeName = reader.GetAttribute("extensionType");
if (!string.IsNullOrEmpty(typeName))
{
Type elementType = Type.GetType(typeName);
UnityContainerTypeConfigurationElement element =
(UnityContainerTypeConfigurationElement)
Activator.CreateInstance(elementType);
element.DeserializeElement(reader);
BaseAdd(element);
return(true);
}
}
return(base.OnDeserializeUnrecognizedElement(elementName, reader));
}
///<summary>
///Gets the element key for a specified configuration element when overridden in a derived class.
///</summary>
///
///<returns>
///An <see cref="T:System.Object"></see> that acts as the key for the specified <see cref="T:System.Configuration.ConfigurationElement"></see>.
///</returns>
///
///<param name="element">The <see cref="T:System.Configuration.ConfigurationElement"></see> to return the key for. </param>
protected override object GetElementKey(ConfigurationElement element)
{
UnityContainerTypeConfigurationElement configElement = (UnityContainerTypeConfigurationElement)(element);
return(configElement.ExtensionType);
}