PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties(Attribute[] attributes)
{
// Rather than passing this function on to the default TypeDescriptor,
// which would return the actual properties of PropertyBag, I construct
// a list here that contains property descriptors for the elements of the
// Properties list in the bag.
ArrayList props = new ArrayList();
foreach (PropertySpec property in properties)
{
ArrayList attrs = new ArrayList();
// If a category, description, editor, or type converter are specified
// in the PropertySpec, create attributes to define that relationship.
if (property.Category != null)
{
attrs.Add(new CategoryAttribute(property.Category));
}
if (property.Description != null)
{
attrs.Add(new DescriptionAttribute(property.Description));
}
if (property.EditorTypeName != null)
{
attrs.Add(new EditorAttribute(property.EditorTypeName, typeof(UITypeEditor)));
}
if (property.ConverterTypeName != null)
{
attrs.Add(new TypeConverterAttribute(property.ConverterTypeName));
}
// Additionally, append the custom attributes associated with the
// PropertySpec, if any.
if (property.Attributes != null)
{
attrs.AddRange(property.Attributes);
}
Attribute[] attrArray = (Attribute[])attrs.ToArray(typeof(Attribute));
// Create a new property descriptor for the property item, and add
// it to the list.
PropertySpecDescriptor pd = new PropertySpecDescriptor(property,
this, property.Name, attrArray);
props.Add(pd);
}
// Convert the list of PropertyDescriptors to a collection that the
// ICustomTypeDescriptor can use, and return it.
PropertyDescriptor[] propArray = (PropertyDescriptor[])props.ToArray(
typeof(PropertyDescriptor));
return(new PropertyDescriptorCollection(propArray));
}