/// <summary>
/// Gets the time from a
/// <see cref="T:System.DateTime"/>
/// object in short Metro format.
/// </summary>
/// <remarks>
/// Metro design guidelines normalize strings to lowercase.
/// </remarks>
/// <param name="dt">Time information.</param>
/// <returns>"10:20p" for 10:20 p.m. when en-US.</returns>
public static string GetSuperShortTime(DateTime dt)
{
if (formatInfo_GetSuperShortTime == null)
{
lock (lock_GetSuperShortTime)
{
StringBuilder result = new StringBuilder(string.Empty);
string seconds;
formatInfo_GetSuperShortTime = (DateTimeFormatInfo)CultureInfo.CurrentCulture.DateTimeFormat.Clone();
result.Append(formatInfo_GetSuperShortTime.LongTimePattern);
seconds = rxSeconds.Match(result.ToString()).Value;
result.Replace(" ", string.Empty);
result.Replace(seconds, string.Empty);
if (!(DateTimeFormatHelper.IsCurrentCultureJapanese() ||
DateTimeFormatHelper.IsCurrentCultureKorean() ||
DateTimeFormatHelper.IsCurrentCultureHungarian()))
{
result.Replace(DoubleMeridiemDesignator, DoubleMeridiemDesignator);
}
formatInfo_GetSuperShortTime.ShortTimePattern = result.ToString();
}
}
return(dt.ToString("t", formatInfo_GetSuperShortTime).ToLowerInvariant());
}
/// <summary>
/// Converts a
/// <see cref="T:System.DateTime"/>
/// object into a string appropriately formatted for threads.
/// This format can be found in messaging.
/// </summary>
/// <remarks>
/// This format never displays the year.
/// </remarks>
/// <param name="value">The given date and time.</param>
/// <param name="targetType">
/// The type corresponding to the binding property, which must be of
/// <see cref="T:System.String"/>.
/// </param>
/// <param name="parameter">(Not used).</param>
/// <param name="culture">(Not used).</param>
/// <returns>The given date and time as a string.</returns>
public object Convert(object value, Type targetType, object parameter, string language)
{
// Target value must be a System.DateTime object.
string result;
DateTime given = (DateTime)value;
DateTime current = DateTime.Now;
if (DateTimeFormatHelper.IsFutureDateTime(current, given))
{
// Future dates and times are not supported.
throw new NotSupportedException();
}
if (DateTimeFormatHelper.IsAnOlderWeek(current, given))
{
result = DateTimeFormatHelper.GetMonthAndDay(given);
}
else if (DateTimeFormatHelper.IsPastDayOfWeekWithWindow(current, given))
{
result = DateTimeFormatHelper.GetAbbreviatedDay(given);
}
else
{
// Given day time is today.
result = DateTimeFormatHelper.GetSuperShortTime(given);
}
return(result);
}
/// <summary>
/// Gets the abbreviated day from a
/// <see cref="T:System.DateTime"/>
/// object.
/// </summary>
/// <param name="dt">Date information.</param>
/// <returns>e.g. "Mon" for Monday when en-US.</returns>
public static string GetAbbreviatedDay(DateTime dt)
{
if (DateTimeFormatHelper.IsCurrentCultureJapanese() || DateTimeFormatHelper.IsCurrentCultureKorean())
{
return("(" + dt.ToString("ddd", CultureInfo.CurrentCulture) + ")");
}
else
{
return(dt.ToString("ddd", CultureInfo.CurrentCulture));
}
}
/// <summary>
/// Converts a
/// <see cref="T:System.DateTime"/>
/// object into a string appropriately formatted for hourly feeds.
/// This format can be found in messaging.
/// </summary>
/// <param name="value">The given date and time.</param>
/// <param name="targetType">
/// The type corresponding to the binding property, which must be of
/// <see cref="T:System.String"/>.
/// </param>
/// <param name="parameter">(Not used).</param>
/// <param name="culture">(Not used).</param>
/// <returns>The given date and time as a string.</returns>
public object Convert(object value, Type targetType, object parameter, string language)
{
// Target value must be a System.DateTime object.
if (!(value is DateTime))
{
throw new ArgumentException();
}
StringBuilder result = new StringBuilder(string.Empty);
DateTime given = (DateTime)value;
DateTime current = DateTime.Now;
if (DateTimeFormatHelper.IsFutureDateTime(current, given))
{
// Future dates and times are not supported.
throw new NotSupportedException();
}
if (DateTimeFormatHelper.IsAnOlderYear(current, given))
{
result.AppendFormat(CultureInfo.CurrentCulture, "{0}, {1}",
DateTimeFormatHelper.GetShortDate(given),
DateTimeFormatHelper.GetSuperShortTime(given));
}
else if (DateTimeFormatHelper.IsAnOlderWeek(current, given))
{
result.AppendFormat(CultureInfo.CurrentCulture, "{0}, {1}",
DateTimeFormatHelper.GetMonthAndDay(given),
DateTimeFormatHelper.GetSuperShortTime(given));
}
else if (DateTimeFormatHelper.IsPastDayOfWeekWithWindow(current, given))
{
result.AppendFormat(CultureInfo.CurrentCulture, "{0}, {1}",
DateTimeFormatHelper.GetAbbreviatedDay(given),
DateTimeFormatHelper.GetSuperShortTime(given));
}
else
{
// Given day time is today.
result.Append(DateTimeFormatHelper.GetSuperShortTime(given));
}
if (DateTimeFormatHelper.IsCurrentUICultureFrench())
{
result.Replace(",", string.Empty);
}
return(result.ToString());
}
