By default, only the ending part of the note is visible. Use the PartVisible property to specify whether the start or ending part of the note is visible or hidden. The PartText property indicates the HTML caption to be displayed in the start or ending part of the note. The ShowLink property specifies whether the link between parts of the notes is visible or hidden. The PartFixedWidth property specifies whether the part is using fixed width or when the width of the part is based on the part's caption. The PartFixedHeight property specifies whether the part is using fixed height or when the height of the part is based on the part's caption.

The following VB sample adds a note associated with the DATE being double clicked:

Private Sub G2antt1_DblClick(Shift As Integer, X As Single, Y As Single)
    With G2antt1
        .BeginUpdate
        Dim h As Long, c As Long, hit As HitTestInfoEnum
        h = G2antt1.ItemFromPoint(-1, -1, c, hit)
        If (h <> 0) Then
            Dim d As Date
            d = .Chart.DateFromPoint(-1, -1)
            If (d <> 0) Then
                With .Chart.Notes.Add(d, h, d, "")
                    .PartVisible(exNoteEnd) = False
                    .PartVisible(exNoteStart) = True
                    .PartText(exNoteStart) = "<%dd%><br><%mm%>"
                    .PartFixedWidth(exNoteStart) = G2antt1.Chart.UnitWidth
                    .PartFixedHeight(exNoteStart) = 36
                    .PartShadow(exNoteStart) = True
                End With
            End If
        End If
        .EndUpdate
    End With
End Sub

Use the Visible property to show or hide the entire note. Use the ShowNotes property to show or hide the notes in the control. Use the Remove method to remove a note from the Notes collection.