Add note to custom data record in code - acumatica

Question

I was searching for a solution to add a note to a database row I am creating in a custom table. I found the solution below from Ruslan for accessing the noteid, but I don't understand how this would be used to add a note to the row. I have all the code to create the row, I just need the attributes or function call to actually attach the text of the note to the row.
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To have Note record automatically created when a new parent record gets saved, one should invoke the static PXNoteAttribute.GetNoteID(PXCache cache, object data) method when the parent record is inserted in the cache.
For example, to have Note record automatically created when a new Stock Item gets saved, you should subscribe to RowInserted handler for the InventoryItem DAC and call PXNoteAttribute.GetNoteID(...):
public class InventoryItemMaintExt : PXGraphExtension<InventoryItemMaint>
{
public void InventoryItem_RowInserted(PXCache sender, PXRowInsertedEventArgs e)
{
var noteCache = Base.Caches[typeof(Note)];
var oldDirty = noteCache.IsDirty;
PXNoteAttribute.GetNoteID<InventoryItem.noteID>(sender, e.Row);
noteCache.IsDirty = oldDirty;
}
}
The code snippet above can be incorporated into almost any custom BLC with a couple simple changes to replace InventoryItem with a custom DAC.
After implementing Gabriel's suggestions:
I do not seem to get any note in the database. The code compiles and runs fine, but the notes are not generated as far as I can tell. The note id is set in my table, but no data appears in the note table. Please take a look at my code and let me know what needs to change. Also, how do I get the note column into a grid, or does it automatically become available when it is done correctly?
Database field definition:
[NoteID] [uniqueidentifier] NULL
DAC field:
#region NoteID
public abstract class noteID : PX.Data.IBqlField
{
}
protected Guid? _NoteID;
[PXNote()]
public virtual Guid? NoteID
{
get
{
return this._NoteID;
}
set
{
this._NoteID = value;
}
}
#endregion
Code to create record:
private static bool acumaticaException(Exception e, EDImportExceptionMaint excpMaint, LingoRet850 res850)
{
excpMaint.Clear();
var except = new EDImportExcept();
except.ExceptReason = "U";
except.Active = true;
<...field assignments...>
except.OrderNbr = "";
PXNoteAttribute.SetNote(excpMaint.Exception.Cache, excpMaint.Exception.Current,
((PX.Data.PXOuterException)e).InnerMessages[0] + "-" + e.Message);
excpMaint.Exception.Insert(except);
excpMaint.Actions.PressSave();
return true;
}

Answer 1

To set the note of a record, use the SetNote()static function of PXNoteAttribute
PXNoteAttribute.SetNote(Base.Item.Cache, Base.Item.Current, "Hello, World!");
Calling SetNote will also take care of adding the Note record if it doesn't exist, so you don't have to call GetNoteID before setting the note value as in your question.
P.S. There is also a GetNote function which allows you to retrieve the current value of the note:
string note = PXNoteAttribute.GetNote(Base.Item.Cache, Base.Item.Current);