/// <summary>
/// Ensures that the value of a parameter is null, or infinite, or greater than or equal to zero.
/// </summary>
/// <param name="value">The value of the parameter.</param>
/// <param name="paramName">The name of the parameter.</param>
/// <returns>The value of the parameter.</returns>
public static TimeSpan?IsNullOrInfiniteOrGreaterThanOrEqualToZero(TimeSpan?value, string paramName)
{
if (value.HasValue && value.Value < TimeSpan.Zero && value.Value != Timeout.InfiniteTimeSpan)
{
var message = string.Format("Value is not null or infinite or greater than or equal to zero: {0}.", TimeSpanParser.ToString(value.Value));
throw new ArgumentOutOfRangeException(paramName, message);
}
return(value);
}
/// <summary>
/// Ensures that the value of a parameter is greater than or equal to zero.
/// </summary>
/// <param name="value">The value of the parameter.</param>
/// <param name="paramName">The name of the parameter.</param>
/// <returns>The value of the parameter.</returns>
public static TimeSpan IsGreaterThanOrEqualToZero(TimeSpan value, string paramName)
{
if (value < TimeSpan.Zero)
{
var message = string.Format("Value is not greater than or equal to zero: {0}.", TimeSpanParser.ToString(value));
throw new ArgumentOutOfRangeException(paramName, message);
}
return(value);
}