How to modify PublishInfoData.PublishedAt property via the Core Service

Question

How can I modify a Component's PublishInfoData.PublishedAt property through Core Service? Code in C#

PublishInfoData[] pubInfo = _client.GetListPublishInfo(id);
PublishInfoData piData = pubInfo[0];
piData.PublishedAt = DateTime.Now;

How to save piData through Core Service?

Answer 1

Please elaborate on why you would like to do this?

To my understanding this is a read only property, since it is set at publish time by Tridion internally.

If you would like to display a 'published at' date on the website you can add a metadata field to the page or component. This is a common requirement.

However, certain system properties, such as the revisor, creation time, last update time, and publish time are updated to reflect a change of state in the system, and should not be modified by external Apis.

Answer 2

First, why do you want it this way? actually the PublishAt property internally set by Tridion to the time when the item published.

PublishInfoData class represent publishing information for Repository local objects, and PublishedAt is a property(GET/SET) of the class.

but I am not sure why do you want to save a object of type PublishInfoData, AFAIK it's not needed. just assign the value to the property should serve the purpose.