How to make a version in part ?

[ezrachen]

The document table's version isn't sequence number. So I will add a part to keep some thing about version in ContentPartHandler<>. But I can't save into document table. My code:

public override Task PublishedAsync(PublishContentContext context, GWDocumentPart part)
{
if (context.PreviousItem == null)
{
part.DocumentVersion = 1;
}
else
{
part.DocumentVersion = context.PreviousItem.As().DocumentVersion + 1;
}
_contentManager.UpdateAsync(part.ContentItem);

  return Task.CompletedTask;

}

Please somebody give me suggestion. Thanks!

[hishamco]

Once you attach the content part to a content type, the content item will be versionable

[ezrachen]

But there are no reasonable version number. I want to keep the number sequence 1, 2, 3...

[hishamco]

OC already manages the versions, I'm not sure why you need to manage it, could you please elaborate?

[ezrachen]

I don't want to implement code about version, just I want a get reasonable version number. But, I have implement the code in ContentPartHandler. But it can't write into Document's state. It write into part index only. I want to know how to write into document in ContentPartHandler, Or it isn't available.
Thanks