/// <summary>
/// This can be used to write a time zone to a PDI data stream
/// </summary>
/// <param name="tw">A <see cref="System.IO.TextWriter"/> derived class to which the time zone is
/// written.</param>
/// <param name="sb">A <see cref="System.Text.StringBuilder"/> used by the properties as a temporary
/// buffer. This can be null if the TextWriter is a <see cref="System.IO.StringWriter"/>.</param>
/// <remarks>This is called by <see cref="CalendarObject.ToString"/> as well as owning objects when they
/// convert themselves to a string or write themselves to a PDI data stream.</remarks>
/// <exception cref="ArgumentException">This is thrown if the TimeZoneId's Value property is null</exception>
public override void WriteToStream(TextWriter tw, StringBuilder sb)
{
PropagateVersion();
tw.Write("BEGIN:VTIMEZONE\r\n");
// The TZID property is required.
if (this.TimeZoneId.Value == null)
{
throw new ArgumentException(LR.GetString("ExTZIDCannotBeNull"));
}
BaseProperty.WriteToStream(timeZoneId, sb, tw);
BaseProperty.WriteToStream(timeZoneUrl, sb, tw);
BaseProperty.WriteToStream(lastMod, sb, tw);
if (rules != null && rules.Count != 0)
{
foreach (ObservanceRule r in rules)
{
r.WriteToStream(tw, sb);
}
}
if (customProps != null && customProps.Count != 0)
{
foreach (CustomProperty c in customProps)
{
BaseProperty.WriteToStream(c, sb, tw);
}
}
tw.Write("END:VTIMEZONE\r\n");
}
/// <summary>
/// This can be used to write a free/busy object to a PDI data stream
/// </summary>
/// <param name="tw">A <see cref="System.IO.TextWriter"/> derived class to which the free/busy object is
/// written.</param>
/// <param name="sb">A <see cref="System.Text.StringBuilder"/> used by the properties as a temporary
/// buffer. This can be null if the TextWriter is a <see cref="System.IO.StringWriter"/>.</param>
/// <remarks>This is called by <see cref="CalendarObject.ToString"/> as well as owning objects when they
/// convert themselves to a string or write themselves to a PDI data stream.</remarks>
public override void WriteToStream(TextWriter tw, StringBuilder sb)
{
// DTSTAMP is always updated and written to reflect when the object was saved to the stream
this.TimeStamp.DateTimeValue = DateTime.Now;
PropagateVersion();
tw.Write("BEGIN:VFREEBUSY\r\n");
// This is a required property for iCalendar 2.0.
BaseProperty.WriteToStream(this.UniqueId, sb, tw);
BaseProperty.WriteToStream(organizer, sb, tw);
if (attendees != null && attendees.Count != 0)
{
foreach (AttendeeProperty a in attendees)
{
BaseProperty.WriteToStream(a, sb, tw);
}
}
BaseProperty.WriteToStream(contact, sb, tw);
BaseProperty.WriteToStream(startDate, sb, tw);
BaseProperty.WriteToStream(endDate, sb, tw);
BaseProperty.WriteToStream(duration, sb, tw);
BaseProperty.WriteToStream(comment, sb, tw);
BaseProperty.WriteToStream(url, sb, tw);
BaseProperty.WriteToStream(timeStamp, sb, tw);
if (reqstats != null && reqstats.Count != 0)
{
foreach (RequestStatusProperty r in reqstats)
{
BaseProperty.WriteToStream(r, sb, tw);
}
}
if (freebusy != null && freebusy.Count != 0)
{
// If there are any, they are sorted in ascending order first
freebusy.Sort(true);
foreach (FreeBusyProperty fb in freebusy)
{
BaseProperty.WriteToStream(fb, sb, tw);
}
}
if (customProps != null && customProps.Count != 0)
{
foreach (CustomProperty c in customProps)
{
BaseProperty.WriteToStream(c, sb, tw);
}
}
tw.Write("END:VFREEBUSY\r\n");
}
/// <summary>
/// This is used to write recurrence properties to a PDI data stream
/// </summary>
/// <param name="tw">A <see cref="System.IO.TextWriter"/> derived class to which the event is written.</param>
/// <param name="sb">A <see cref="System.Text.StringBuilder"/> used by the properties as a temporary
/// buffer. This can be null if the TextWriter is a <see cref="System.IO.StringWriter"/>.</param>
/// <remarks>This is called by <see cref="CalendarObject.ToString"/> as well as owning objects when they
/// convert themselves to a string or write themselves to a PDI data stream.</remarks>
public override void WriteToStream(TextWriter tw, StringBuilder sb)
{
if (rRules != null && rRules.Count != 0)
{
foreach (RRuleProperty r in rRules)
{
BaseProperty.WriteToStream(r, sb, tw);
}
}
if (rDates != null && rDates.Count != 0)
{
foreach (RDateProperty r in rDates)
{
BaseProperty.WriteToStream(r, sb, tw);
}
}
if (exRules != null && exRules.Count != 0)
{
foreach (ExRuleProperty e in exRules)
{
BaseProperty.WriteToStream(e, sb, tw);
}
}
if (exDates != null && exDates.Count != 0)
{
foreach (ExDateProperty e in exDates)
{
BaseProperty.WriteToStream(e, sb, tw);
}
}
if (this.ExcludeStartDateTime)
{
tw.Write("X-EWSOFTWARE-EXCLUDESTART:1\r\n");
}
}
/// <summary>
/// This can be used to write a vNote to a PDI data stream
/// </summary>
/// <param name="tw">A <see cref="System.IO.TextWriter"/> derived class to which the vNote is written.</param>
/// <param name="sb">A <see cref="System.Text.StringBuilder"/> used by the properties as a temporary
/// buffer. This can be null if the TextWriter is a <see cref="System.IO.StringWriter"/>.</param>
/// <remarks>This is called by <see cref="ToString"/> as well as owning objects when they convert
/// themselves to a string or write themselves to a PDI data stream.</remarks>
public void WriteToStream(TextWriter tw, StringBuilder sb)
{
PropagateVersion();
tw.Write("BEGIN:VNOTE\r\n");
tw.Write("VERSION:1.1\r\n");
BaseProperty.WriteToStream(uid, sb, tw);
BaseProperty.WriteToStream(summary, sb, tw);
// The BODY property is required, all others are optional. However, it can be blank so we must force
// it if it is blank.
if (body == null || String.IsNullOrEmpty(body.Value))
{
tw.Write("BODY:\r\n");
}
else
{
BaseProperty.WriteToStream(body, sb, tw);
}
BaseProperty.WriteToStream(categories, sb, tw);
BaseProperty.WriteToStream(classification, sb, tw);
BaseProperty.WriteToStream(dateCreated, sb, tw);
BaseProperty.WriteToStream(lastModified, sb, tw);
if (customProps != null && customProps.Count != 0)
{
foreach (CustomProperty c in customProps)
{
BaseProperty.WriteToStream(c, sb, tw);
}
}
tw.Write("END:VNOTE\r\n");
}
/// <summary>
/// This can be used to write a vCard to a PDI data stream
/// </summary>
/// <param name="tw">A <see cref="System.IO.TextWriter"/> derived class to which the vCard is written.</param>
/// <param name="sb">A <see cref="System.Text.StringBuilder"/> used by the properties as a temporary
/// buffer. This can be null if the TextWriter is a <see cref="System.IO.StringWriter"/>.</param>
/// <remarks>This is called by <see cref="ToString"/> as well as owning objects when they convert
/// themselves to a string or write themselves to a PDI data stream.</remarks>
public void WriteToStream(TextWriter tw, StringBuilder sb)
{
// If Formatted Name is undefined, try to set it based on Name
if (fn == null || fn.Value == "Unknown")
{
this.FormattedName.Value = this.Name.FormattedName;
}
PropagateVersion();
if (groupName != null)
{
tw.Write(groupName);
tw.Write('.');
}
tw.Write("BEGIN:VCARD\r\n");
if (this.Version == SpecificationVersions.vCard21)
{
tw.Write("VERSION:2.1\r\n");
}
else
{
tw.Write("VERSION:3.0\r\n");
}
// Save 3.0 specification properties when needed. We'll group the properties to keep similar ones
// together. It's not necessary, but it makes things easier to find.
if (this.Version == SpecificationVersions.vCard30)
{
if (addProfile)
{
tw.Write("PROFILE:VCARD\r\n");
}
BaseProperty.WriteToStream(prodId, sb, tw);
BaseProperty.WriteToStream(mimeName, sb, tw);
BaseProperty.WriteToStream(mimeSource, sb, tw);
}
// These two are required properties
BaseProperty.WriteToStream(this.FormattedName, sb, tw);
BaseProperty.WriteToStream(this.Name, sb, tw);
if (this.Version == SpecificationVersions.vCard30)
{
BaseProperty.WriteToStream(nickname, sb, tw);
BaseProperty.WriteToStream(sortString, sb, tw);
}
BaseProperty.WriteToStream(bday, sb, tw);
BaseProperty.WriteToStream(org, sb, tw);
BaseProperty.WriteToStream(title, sb, tw);
BaseProperty.WriteToStream(role, sb, tw);
if (this.Version == SpecificationVersions.vCard30)
{
BaseProperty.WriteToStream(classification, sb, tw);
BaseProperty.WriteToStream(categories, sb, tw);
}
if (addrs != null && addrs.Count != 0)
{
foreach (AddressProperty a in addrs)
{
BaseProperty.WriteToStream(a, sb, tw);
}
}
if (labels != null && labels.Count != 0)
{
foreach (LabelProperty l in labels)
{
BaseProperty.WriteToStream(l, sb, tw);
}
}
if (phones != null && phones.Count != 0)
{
foreach (TelephoneProperty t in phones)
{
BaseProperty.WriteToStream(t, sb, tw);
}
}
if (email != null && email.Count != 0)
{
foreach (EMailProperty e in email)
{
BaseProperty.WriteToStream(e, sb, tw);
}
}
if (agents != null && agents.Count != 0)
{
foreach (AgentProperty a in agents)
{
BaseProperty.WriteToStream(a, sb, tw);
}
}
if (notes != null && notes.Count != 0)
{
foreach (NoteProperty n in notes)
{
BaseProperty.WriteToStream(n, sb, tw);
}
}
BaseProperty.WriteToStream(url, sb, tw);
BaseProperty.WriteToStream(tz, sb, tw);
BaseProperty.WriteToStream(geo, sb, tw);
BaseProperty.WriteToStream(mailer, sb, tw);
BaseProperty.WriteToStream(rev, sb, tw);
BaseProperty.WriteToStream(uid, sb, tw);
BaseProperty.WriteToStream(key, sb, tw);
BaseProperty.WriteToStream(photo, sb, tw);
BaseProperty.WriteToStream(logo, sb, tw);
BaseProperty.WriteToStream(sound, sb, tw);
if (customProps != null && customProps.Count != 0)
{
foreach (CustomProperty c in customProps)
{
BaseProperty.WriteToStream(c, sb, tw);
}
}
if (groupName != null)
{
tw.Write(groupName);
tw.Write('.');
}
tw.Write("END:VCARD\r\n");
}
/// <summary>
/// This can be used to write an event to a PDI data stream
/// </summary>
/// <param name="tw">A <see cref="System.IO.TextWriter"/> derived class to which the event is written.</param>
/// <param name="sb">A <see cref="System.Text.StringBuilder"/> used by the properties as a temporary
/// buffer. This can be null if the TextWriter is a <see cref="System.IO.StringWriter"/>.</param>
/// <remarks>This is called by <see cref="CalendarObject.ToString"/> as well as owning objects when they
/// convert themselves to a string or write themselves to a PDI data stream.</remarks>
public override void WriteToStream(TextWriter tw, StringBuilder sb)
{
// DTSTAMP is always updated and written to reflect when the object was saved to the stream
// (iCalendar 2.0 only).
this.TimeStamp.DateTimeValue = DateTime.Now;
PropagateVersion();
tw.Write("BEGIN:VEVENT\r\n");
// This is a required property for iCalendar 2.0 but is optional for vCalendar 1.0
if (this.Version != SpecificationVersions.vCalendar10 || uid != null)
{
BaseProperty.WriteToStream(this.UniqueId, sb, tw);
}
BaseProperty.WriteToStream(startDate, sb, tw);
if (this.Version == SpecificationVersions.iCalendar20)
{
// Duration and end date are mutually exclusive. If there is a duration, end date is ignored.
if (duration != null && duration.DurationValue != PDI.Duration.Zero)
{
BaseProperty.WriteToStream(duration, sb, tw);
}
if (endDate != null && (duration == null || duration.DurationValue == PDI.Duration.Zero))
{
BaseProperty.WriteToStream(endDate, sb, tw);
}
BaseProperty.WriteToStream(organizer, sb, tw);
}
else
{
// vCalendar uses DTEND and doesn't have a DURATION
BaseProperty.WriteToStream(endDate, sb, tw);
BaseProperty.WriteToStream(rNum, sb, tw);
}
BaseProperty.WriteToStream(summary, sb, tw);
BaseProperty.WriteToStream(desc, sb, tw);
BaseProperty.WriteToStream(classification, sb, tw);
BaseProperty.WriteToStream(categories, sb, tw);
BaseProperty.WriteToStream(resources, sb, tw);
BaseProperty.WriteToStream(location, sb, tw);
BaseProperty.WriteToStream(priority, sb, tw);
BaseProperty.WriteToStream(sequence, sb, tw);
BaseProperty.WriteToStream(transp, sb, tw);
BaseProperty.WriteToStream(status, sb, tw);
BaseProperty.WriteToStream(url, sb, tw);
BaseProperty.WriteToStream(dateCreated, sb, tw);
BaseProperty.WriteToStream(lastMod, sb, tw);
if (this.Version == SpecificationVersions.iCalendar20)
{
BaseProperty.WriteToStream(dateStamp, sb, tw);
BaseProperty.WriteToStream(comment, sb, tw);
BaseProperty.WriteToStream(geo, sb, tw);
BaseProperty.WriteToStream(recurId, sb, tw);
if (contacts != null && contacts.Count != 0)
{
foreach (ContactProperty c in contacts)
{
BaseProperty.WriteToStream(c, sb, tw);
}
}
if (reqStats != null && reqStats.Count != 0)
{
foreach (RequestStatusProperty r in reqStats)
{
BaseProperty.WriteToStream(r, sb, tw);
}
}
}
if (attendees != null && attendees.Count != 0)
{
foreach (AttendeeProperty a in attendees)
{
BaseProperty.WriteToStream(a, sb, tw);
}
}
if (relatedTo != null && relatedTo.Count != 0)
{
foreach (RelatedToProperty r in relatedTo)
{
BaseProperty.WriteToStream(r, sb, tw);
}
}
base.WriteToStream(tw, sb);
if (alarms != null && alarms.Count != 0)
{
foreach (VAlarm a in alarms)
{
a.WriteToStream(tw, sb);
}
}
if (attachments != null && attachments.Count != 0)
{
foreach (AttachProperty a in attachments)
{
BaseProperty.WriteToStream(a, sb, tw);
}
}
if (customProps != null && customProps.Count != 0)
{
foreach (CustomProperty c in customProps)
{
BaseProperty.WriteToStream(c, sb, tw);
}
}
tw.Write("END:VEVENT\r\n");
}
/// <summary>
/// This can be used to write a journal to a PDI data stream
/// </summary>
/// <param name="tw">A <see cref="System.IO.TextWriter"/> derived class to which the journal is written.</param>
/// <param name="sb">A <see cref="System.Text.StringBuilder"/> used by the properties as a temporary
/// buffer. This can be null if the TextWriter is a <see cref="System.IO.StringWriter"/>.</param>
/// <remarks>This is called by <see cref="CalendarObject.ToString"/> as well as owning objects when they
/// convert themselves to a string or write themselves to a PDI data stream.</remarks>
public override void WriteToStream(TextWriter tw, StringBuilder sb)
{
// DTSTAMP is always updated and written to reflect when the object was saved to the stream
this.TimeStamp.DateTimeValue = DateTime.Now;
PropagateVersion();
tw.Write("BEGIN:VJOURNAL\r\n");
// This is a required property for iCalendar 2.0
BaseProperty.WriteToStream(this.UniqueId, sb, tw);
BaseProperty.WriteToStream(timeStamp, sb, tw);
BaseProperty.WriteToStream(sequence, sb, tw);
BaseProperty.WriteToStream(startDate, sb, tw);
BaseProperty.WriteToStream(summary, sb, tw);
BaseProperty.WriteToStream(desc, sb, tw);
BaseProperty.WriteToStream(comment, sb, tw);
BaseProperty.WriteToStream(organizer, sb, tw);
BaseProperty.WriteToStream(classification, sb, tw);
BaseProperty.WriteToStream(categories, sb, tw);
BaseProperty.WriteToStream(status, sb, tw);
BaseProperty.WriteToStream(recurId, sb, tw);
BaseProperty.WriteToStream(url, sb, tw);
BaseProperty.WriteToStream(dateCreated, sb, tw);
BaseProperty.WriteToStream(lastMod, sb, tw);
if (contacts != null && contacts.Count != 0)
{
foreach (ContactProperty c in contacts)
{
BaseProperty.WriteToStream(c, sb, tw);
}
}
if (attendees != null && attendees.Count != 0)
{
foreach (AttendeeProperty a in attendees)
{
BaseProperty.WriteToStream(a, sb, tw);
}
}
if (relatedTo != null && relatedTo.Count != 0)
{
foreach (RelatedToProperty r in relatedTo)
{
BaseProperty.WriteToStream(r, sb, tw);
}
}
if (reqStats != null && reqStats.Count != 0)
{
foreach (RequestStatusProperty r in reqStats)
{
BaseProperty.WriteToStream(r, sb, tw);
}
}
base.WriteToStream(tw, sb);
if (attachments != null && attachments.Count != 0)
{
foreach (AttachProperty a in attachments)
{
BaseProperty.WriteToStream(a, sb, tw);
}
}
if (customProps != null && customProps.Count != 0)
{
foreach (CustomProperty c in customProps)
{
BaseProperty.WriteToStream(c, sb, tw);
}
}
tw.Write("END:VJOURNAL\r\n");
}
/// <summary>
/// This can be used to write an alarm to a PDI data stream
/// </summary>
/// <param name="tw">A <see cref="System.IO.TextWriter"/> derived class to which the alarm is written.</param>
/// <param name="sb">A <see cref="System.Text.StringBuilder"/> used by the properties as a temporary
/// buffer. This can be null if the TextWriter is a <see cref="System.IO.StringWriter"/>.</param>
/// <remarks>This is called by <see cref="CalendarObject.ToString"/> as well as owning objects when they
/// convert themselves to a string or write themselves to a PDI data stream.</remarks>
public override void WriteToStream(TextWriter tw, StringBuilder sb)
{
StringBuilder sbVCal = null;
PropagateVersion();
// If vCalendar 1.0, write in alternate format
if (this.Version == SpecificationVersions.vCalendar10)
{
// If using a StringWriter, append directly to it
if (sb == null)
{
sbVCal = ((StringWriter)tw).GetStringBuilder();
}
else
{
sbVCal = sb;
sbVCal.Length = 0;
}
int priorLen = sbVCal.Length;
switch (this.Action.Action)
{
case AlarmAction.Audio:
sbVCal.Append("AALARM");
if (this.Attachments.Count != 0)
{
this.Attachments[0].SerializeParameters(sbVCal);
}
sbVCal.Append(':');
sbVCal.Append(this.Trigger.EncodedValue);
sbVCal.Append(';');
if (duration != null)
{
sbVCal.Append(duration.EncodedValue);
}
sbVCal.Append(';');
if (repeat != null)
{
sbVCal.Append(repeat.EncodedValue);
}
sbVCal.Append(';');
if (this.Attachments.Count != 0)
{
sbVCal.Append(this.Attachments[0].EncodedValue);
}
break;
case AlarmAction.Display:
sbVCal.Append("DALARM");
this.Description.SerializeParameters(sbVCal);
sbVCal.Append(':');
sbVCal.Append(this.Trigger.EncodedValue);
sbVCal.Append(';');
if (duration != null)
{
sbVCal.Append(duration.EncodedValue);
}
sbVCal.Append(';');
if (repeat != null)
{
sbVCal.Append(repeat.EncodedValue);
}
sbVCal.Append(';');
sbVCal.Append(this.Description.EncodedValue);
break;
case AlarmAction.EMail:
sbVCal.Append("MALARM");
this.Description.SerializeParameters(sbVCal);
sbVCal.Append(':');
sbVCal.Append(this.Trigger.EncodedValue);
sbVCal.Append(';');
if (duration != null)
{
sbVCal.Append(duration.EncodedValue);
}
sbVCal.Append(';');
if (repeat != null)
{
sbVCal.Append(repeat.EncodedValue);
}
sbVCal.Append(';');
if (this.Attendees.Count != 0)
{
sbVCal.Append(this.Attendees[0].EncodedValue);
}
sbVCal.Append(';');
sbVCal.Append(this.Description.EncodedValue);
break;
case AlarmAction.Procedure:
sbVCal.Append("PALARM");
if (this.Attachments.Count != 0)
{
this.Attachments[0].SerializeParameters(sbVCal);
}
sbVCal.Append(':');
sbVCal.Append(this.Trigger.EncodedValue);
sbVCal.Append(';');
if (duration != null)
{
sbVCal.Append(duration.EncodedValue);
}
sbVCal.Append(';');
if (repeat != null)
{
sbVCal.Append(repeat.EncodedValue);
}
sbVCal.Append(';');
if (this.Attachments.Count != 0)
{
sbVCal.Append(this.Attachments[0].EncodedValue);
}
break;
default:
break; // Anything else is unknown
}
sbVCal.Append("\r\n");
// Insert line folds?
if (sbVCal.Length - priorLen > 75)
{
int len = 1;
while (priorLen < sbVCal.Length)
{
if (sbVCal[priorLen] == '\r' || sbVCal[priorLen] == '\n')
{
len = 1;
}
else
{
len++;
}
priorLen++;
if (len == 76 && priorLen < sbVCal.Length && sbVCal[priorLen] != '\r' &&
sbVCal[priorLen] != '\n')
{
// Find the first non-whitespace character that isn't '=' (possible quoted-printable)
// and insert the break there.
do
{
len--;
priorLen--;
} while(len > 0 && (Char.IsWhiteSpace(sbVCal[priorLen]) || sbVCal[priorLen] == '='));
if (len > 0)
{
len = 1;
sbVCal.Insert(priorLen + 1, "\r\n ");
priorLen += 3;
}
else // Couldn't find a non-whitespace char, give up
{
priorLen += 75;
}
}
}
}
if (sb != null)
{
tw.Write(sb.ToString());
}
return;
}
tw.Write("BEGIN:VALARM\r\n");
// Action and Trigger are required properties
BaseProperty.WriteToStream(this.Action, sb, tw);
BaseProperty.WriteToStream(this.Trigger, sb, tw);
// These are optional but if one is specified, the other must be as well
if ((repeat != null && repeat.RepeatCount != 0) || (duration != null &&
duration.DurationValue != PDI.Duration.Zero))
{
// Force a repeat if not specified
if (this.Repeat.RepeatCount < 1)
{
this.Repeat.RepeatCount = 1;
}
// Specify a minimum duration if one hasn't been specified
if (this.Duration.DurationValue == PDI.Duration.Zero)
{
this.Duration.DurationValue = new Duration("PT15M");
}
BaseProperty.WriteToStream(this.Repeat, sb, tw);
BaseProperty.WriteToStream(this.Duration, sb, tw);
}
// The remaining properties are saved based on the action type
switch (this.Action.Action)
{
case AlarmAction.Audio:
// Only one attachment is allowed if specified
if (attachments != null && attachments.Count != 0)
{
BaseProperty.WriteToStream(attachments[0], sb, tw);
}
break;
case AlarmAction.Display:
BaseProperty.WriteToStream(desc, sb, tw);
break;
case AlarmAction.Procedure:
BaseProperty.WriteToStream(desc, sb, tw);
// Only one attachment is allowed if specified
if (attachments != null && attachments.Count != 0)
{
BaseProperty.WriteToStream(attachments[0], sb, tw);
}
break;
default: // Email or Other
BaseProperty.WriteToStream(summary, sb, tw);
BaseProperty.WriteToStream(desc, sb, tw);
if (attendees != null && attendees.Count != 0)
{
foreach (AttendeeProperty a in attendees)
{
BaseProperty.WriteToStream(a, sb, tw);
}
}
if (attachments != null && attachments.Count != 0)
{
foreach (AttachProperty a in attachments)
{
BaseProperty.WriteToStream(a, sb, tw);
}
}
break;
}
// Add any custom properties
if (customProps != null && customProps.Count != 0)
{
foreach (CustomProperty c in customProps)
{
BaseProperty.WriteToStream(c, sb, tw);
}
}
tw.Write("END:VALARM\r\n");
}
/// <summary>
/// This can be used to write an observance rule to a PDI data stream
/// </summary>
/// <param name="tw">A <see cref="System.IO.TextWriter"/> derived class to which the observance rule is
/// written.</param>
/// <param name="sb">A <see cref="System.Text.StringBuilder"/> used by the properties as a temporary
/// buffer. This can be null if the TextWriter is a <see cref="System.IO.StringWriter"/>.</param>
/// <remarks>This is called by <see cref="CalendarObject.ToString"/> as well as owning objects when they
/// convert themselves to a string or write themselves to a PDI data stream.</remarks>
public override void WriteToStream(TextWriter tw, StringBuilder sb)
{
PropagateVersion();
if (ruleType == ObservanceRuleType.Standard)
{
tw.Write("BEGIN:STANDARD\r\n");
}
else
{
tw.Write("BEGIN:DAYLIGHT\r\n");
}
if (startDate != null)
{
startDate.TimeZoneId = null; // Never use a time zone ID
startDate.IsFloating = true; // Always floating
BaseProperty.WriteToStream(startDate, sb, tw);
}
BaseProperty.WriteToStream(offsetFrom, sb, tw);
BaseProperty.WriteToStream(offsetTo, sb, tw);
BaseProperty.WriteToStream(comment, sb, tw);
if (rRules != null && rRules.Count != 0)
{
foreach (RRuleProperty r in rRules)
{
BaseProperty.WriteToStream(r, sb, tw);
}
}
if (rDates != null && rDates.Count != 0)
{
foreach (RDateProperty rdt in rDates)
{
rdt.TimeZoneId = null; // Never use a time zone ID
rdt.IsFloating = true; // Always floating
// Periods aren't supported so force them to a date/time
if (rdt.ValueLocation == ValLocValue.Period)
{
rdt.ValueLocation = ValLocValue.DateTime;
}
BaseProperty.WriteToStream(rdt, sb, tw);
}
}
if (tzNames != null && tzNames.Count != 0)
{
foreach (TimeZoneNameProperty tzn in tzNames)
{
BaseProperty.WriteToStream(tzn, sb, tw);
}
}
if (customProps != null && customProps.Count != 0)
{
foreach (CustomProperty c in customProps)
{
BaseProperty.WriteToStream(c, sb, tw);
}
}
if (ruleType == ObservanceRuleType.Standard)
{
tw.Write("END:STANDARD\r\n");
}
else
{
tw.Write("END:DAYLIGHT\r\n");
}
}
