protobuf-net:如何在C#中表示DateTime? [英] protobuf-net : how to represent DateTime in C#?
问题描述
protogen.exe
为 long <类型的
proto2
消息字段生成此模式。 / code>:
protogen.exe
generates this pattern for a proto2
message field of type long
:
private long _Count = default(long);
[global::ProtoBuf.ProtoMember(1, IsRequired = false, Name=@"Count", DataFormat = global::ProtoBuf.DataFormat.TwosComplement)]
[global::System.ComponentModel.DefaultValue(default(long))]
public long Count
{
get { return _Count; }
set { _Count = value; }
}
但作为 proto2
不包含日期时间类型(并且 protobuf-net
不支持 proto3
其中包括 google.protobuf.Timestamp
),尚不清楚如何在手动编码的C#原型对象中表示 DateTime
。
but as proto2
does not include a date-time type ( and protobuf-net
does not support proto3
which includes google.protobuf.Timestamp
) it's not clear how to represent DateTime
in manually coded C# proto object.
这可能是错误的:
private DateTime _When = DateTime.MinValue;
[global::ProtoBuf.ProtoMember(1, IsRequired = false, Name=@"When", DataFormat = global::ProtoBuf.DataFormat.Default)]
[global::System.ComponentModel.DefaultValue(DateTime.MinValue)]
public DateTime When
{
get { return _When; }
set { _When = value; }
}
装饰 DateTime <的正确方法是什么? / code>用于
protobuf-net
的属性?
推荐答案
这取决于您希望它在电线上的外观。如果您希望它的长度是
(进入时代),则:做到这一点。例如:
It depends on what you want it to look like on the wire. If you want it to be a long
(delta into epoch), then : do that. For example:
[ProtoMember(...)] public long Foo {get;set;}
如果您希望它是长
的电线,而 DateTime
在您的代码中:这样做:
If you want it to be a long
on the wire and a DateTime
in your code: do that:
public DateTime Foo {get;set;}
[ProtoMember(...)] private long FooSerialized {
get { return DateTimeToLong(Foo); }
set { Foo = LongToDateTime(value); }
}
如果您不在乎,只想存储 DateTime
,这样做:
If you don't care and just want to store a DateTime
, do that:
[ProtoMember(...)] public DateTime Foo {get;set;}
这篇关于protobuf-net:如何在C#中表示DateTime?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!