public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object value, Attribute[] attributes) {
PropertyDescriptor[] props = null;
if (value.GetType().IsArray) {
Array valueArray = (Array)value;
int length = valueArray.GetLength(0);
props = new PropertyDescriptor[length];
Type arrayType = value.GetType();
Type elementType = arrayType.GetElementType();
for (int i = 0; i < length; i++) {
props[i] = new ArrayPropertyDescriptor(arrayType, elementType, i);
}
}
return new PropertyDescriptorCollection(props);
}