[ Version ( since = "3.32" ) ]
public void add_attribute_time_ical (string? ns_href, string name, time_t value)
Adds a new attribute with a time_t value in iCalendar format to the current element.
The format is "YYYYMMDDTHHMMSSZ". Use null ns_href, to use the default namespace,
otherwise either previously added namespace with the same href from e_xml_document_add_namespaces is picked, or a new
namespace with generated prefix is added.
| this |
an XmlDocument |
| ns_href |
optional namespace href for the new attribute, or null |
| name |
name of the attribute |
| value |
time_t value of the attribute |