Attach file to data row

问题

I am trying to attach a text file to a data row in my custom object. I must be missing something. I have the pointer to the current record (asn) and the Byte array (retLabels.Labels) but I can't figure out what the third parameter should be. Also, do I need to execute an update and save after attaching the file?

if (retLabels.Code == "OK" || ediDemo)
{
    asnGraph.ASN.Current = asn;
    PXNoteAttribute.AttachFile(asn, retLabels.Labels, ???? PX.SM.FileInfo );
}

回答1:

Create the file in memory:

PX.SM.FileInfo file = new PX.SM.FileInfo("textfile.txt", 
                                         null,
                                         Encoding.UTF8.GetBytes("Text file content."));

Upload the file in Acumatica:

UploadFileMaintenance upload = PXGraph.CreateInstance<UploadFileMaintenance>();

upload.SaveFile(file, 
                FileExistsAction.CreateVersion);

Attach the file to any DAC records by linking file UID (unique ID) to DAC NoteID field:

PXNoteAttribute.SetFileNotes(Base.Caches[typeof(DAC)], dacRecord, file.UID.Value);

来源：https://stackoverflow.com/questions/51508669/attach-file-to-data-row