/// <summary>
/// Gets the attribute from the item
/// </summary>
/// <typeparam name="T">Attribute type</typeparam>
/// <param name="Provider">Attribute provider</param>
/// <param name="Inherit">
/// When true, it looks up the heirarchy chain for the inherited custom attributes
/// </param>
/// <returns>Attribute specified if it exists</returns>
public static T Attribute <T>(this ICustomAttributeProvider Provider, bool Inherit = true) where T : Attribute
{
Contract.Requires <ArgumentNullException>(Provider != null, "Provider");
if (Provider.IsDefined(typeof(T), Inherit))
{
var Attributes = Provider.Attributes <T>(Inherit);
if (Attributes.Length > 0)
{
return(Attributes[0]);
}
}
return(default(T));
}
/// <summary>
/// Gets the first <see href="Attribute"/> of type <typeparamref name="T"/> associated with the <paramref name="provider"/>.
/// </summary>
/// <returns>The first attribute found on the source element.</returns>
public static T Attribute <T>(this ICustomAttributeProvider provider) where T : Attribute
{
return(provider.Attributes <T>().FirstOrDefault());
}
/// <summary>
/// Gets the first <see href="Attribute"/> of type <paramref name="attributeType"/> associated with the <paramref name="provider"/>.
/// </summary>
/// <returns>The first attribute found on the source element.</returns>
public static Attribute Attribute(this ICustomAttributeProvider provider, Type attributeType)
{
return(provider.Attributes(attributeType).FirstOrDefault());
}
/// <summary>
/// Determines whether the <paramref name="provider"/> element has an associated <see href="Attribute"/>
/// of any of the types given in <paramref name="attributeTypes"/>.
/// </summary>
/// <param name="provider"></param>
/// <param name="attributeTypes">The list of attribute types to look for. If this list is <c>null</c> or
/// empty an <see href="ArgumentException"/> will be thrown.</param>
/// <returns>True if the source element has at least one of the specified attribute types, false otherwise.</returns>
public static bool HasAnyAttribute(this ICustomAttributeProvider provider, params Type[] attributeTypes)
{
return(provider.Attributes(attributeTypes).Count() > 0);
}
/// <summary>
/// Gets the attribute from the item
/// </summary>
/// <typeparam name="T">Attribute type</typeparam>
/// <param name="Provider">Attribute provider</param>
/// <param name="Inherit">When true, it looks up the heirarchy chain for the inherited custom attributes</param>
/// <returns>Attribute specified if it exists</returns>
public static T Attribute <T>(this ICustomAttributeProvider Provider, bool Inherit = true) where T : Attribute
{
return(Provider.IsDefined(typeof(T), Inherit) ? Provider.Attributes <T>(Inherit)[0] : default(T));
}
public static T Attribute <T>(this ICustomAttributeProvider provider, bool inherit = true) where T : Attribute
{
return(provider.Attributes <T>(inherit).SingleOrDefault());
}
public static bool HasAttribute <T>(this ICustomAttributeProvider provider, bool inherit = true) where T : Attribute
{
return(provider.Attributes <T>(inherit).Any());
}
