/// <summary>
/// Initializes a new instance of the <see cref="T:GsmComm.PduConverter.RelativeValidityPeriod" />.
/// </summary>
/// <param name="period">The validity period.</param>
/// <remarks>
/// There are some rules to note:
/// <list type="bullet">
/// <item><description>
/// The smallest validity period is 5 minutes, 63 weeks the largest.
/// </description></item>
/// <item><description>
/// Periods between 5 minutes and 12 hours can be specified in 5 minute steps.
/// </description></item>
/// <item><description>
/// Periods between 12h30min and 24 hours can be specified in 30 minute steps.
/// </description></item>
/// <item><description>
/// Periods between two days and 30 days can be specified in 1 day steps.
/// </description></item>
/// <item><description>
/// Periods between 5 weeks and 63 weeks can be specified in 1 week (=7 days) steps.
/// </description></item>
/// </list>
/// </remarks>
/// <exception cref="T:System.ArgumentException">Validity timespan is invalid.</exception>
public RelativeValidityPeriod(TimeSpan period)
{
byte num = 0;
while (num <= 255)
{
TimeSpan timeSpan = RelativeValidityPeriod.ToTimeSpan(num);
if (timeSpan.CompareTo(period) != 0)
{
num = (byte)(num + 1);
}
else
{
this.@value = num;
return;
}
}
throw new ArgumentException("Invalid validity timespan.");
}
/// <summary>
/// Returns the TimeSpan equivalent of this instance.
/// </summary>
/// <returns>The TimeSpan value.</returns>
public TimeSpan ToTimeSpan()
{
return(RelativeValidityPeriod.ToTimeSpan(this.@value));
}