DateTimeOffsetAdapter.cs

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using System.Globalization;
using System.Xml;
 
namespace System.Runtime.Serialization;
 
[DataContract(Name = "DateTimeOffset", Namespace = "http://schemas.datacontract.org/2004/07/System")]
internal struct DateTimeOffsetAdapter
{
    private DateTime _utcDateTime;
 
    private short _offsetMinutes;
 
    [DataMember(Name = "DateTime", IsRequired = true)]
    public DateTime UtcDateTime
    {
        get
        {
            return _utcDateTime;
        }
        set
        {
            _utcDateTime = value;
        }
    }
 
    [DataMember(Name = "OffsetMinutes", IsRequired = true)]
    public short OffsetMinutes
    {
        get
        {
            return _offsetMinutes;
        }
        set
        {
            _offsetMinutes = value;
        }
    }
 
    public DateTimeOffsetAdapter(DateTime dateTime, short offsetMinutes)
    {
        _utcDateTime = dateTime;
        _offsetMinutes = offsetMinutes;
    }
 
    public static DateTimeOffset GetDateTimeOffset(DateTimeOffsetAdapter value)
    {
        try
        {
            if (value.UtcDateTime.Kind == DateTimeKind.Unspecified)
            {
                return new DateTimeOffset(value.UtcDateTime, new TimeSpan(0, value.OffsetMinutes, 0));
            }
            return new DateTimeOffset(value.UtcDateTime).ToOffset(new TimeSpan(0, value.OffsetMinutes, 0));
        }
        catch (ArgumentException exception)
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlExceptionHelper.CreateConversionException(value.ToString(CultureInfo.InvariantCulture), "DateTimeOffset", exception));
        }
    }
 
    public static DateTimeOffsetAdapter GetDateTimeOffsetAdapter(DateTimeOffset value)
    {
        return new DateTimeOffsetAdapter(value.UtcDateTime, (short)value.Offset.TotalMinutes);
    }
 
    public string ToString(IFormatProvider provider)
    {
        return "DateTime: " + UtcDateTime.ToString() + ", Offset: " + OffsetMinutes;
    }
}