/// <summary>
/// Compares two events to see if the date and place are the same.
/// </summary>
/// <param name="obj">The event instance to compare against.</param>
/// <returns>Relative position in the sort order.</returns>
public int CompareTo(object obj)
{
var eventToCompare = obj as GedcomEvent;
if (eventToCompare == null)
{
return(-1);
}
if (eventToCompare.Date == null && Date == null)
{
return(0);
}
if (eventToCompare.Date == null)
{
return(-1);
}
if (Date == null)
{
return(1);
}
var compare = GedcomDate.CompareByDate(Date, eventToCompare.Date);
if (compare != 0)
{
return(compare);
}
return(string.Compare(eventName, eventToCompare.eventName));
}
/// <summary>
/// Compares two events to see if the date and place are the same.
/// </summary>
/// <param name="eventToCompare">The event instance to compare against.</param>
/// <returns>Relative position in the sort order.</returns>
public int CompareTo(GedcomEvent eventToCompare)
{
if (eventToCompare == null)
{
return(-1);
}
if (eventToCompare.Date == null && Date != null)
{
return(-1);
}
if (Date == null && eventToCompare.Date != null)
{
return(-1);
}
var compare = GedcomDate.CompareByDate(Date, eventToCompare.Date);
if (compare != 0)
{
return(compare);
}
return(string.Compare(eventName, eventToCompare.eventName));
}