Buenas noches me sale este error en el codigo, se que el valor es null pero como hago para que aunque sea nulo avance y ese valor no se guarde? aqui les dejo mi codigo
 
Private Sub List1_Click()
 
 
HD.MoveFirst
While Not HD.EOF
If Text10.Text = HD!id Then
 
If HD!lunes = True Then
Frame3.Visible = False
Frame4.Visible = True
    Label15.Caption = lunes.Caption
    Label15.Visible = True
    A_L.Visible = True
    Else
    Label16.Visible = False
    lbl16_2.Visible = False
    lbl16_3.Visible = False
    lbl16_4.Visible = False
 
       End If
   If HD!martes = True Then
Frame3.Visible = False
Frame4.Visible = True
    Label17.Caption = martes.Caption
    Label17.Visible = True
        A_M.Visible = True
    Else
    Label18.Visible = False
    lbl18_2.Visible = False
    lbl18_3.Visible = False
    lbl18_4.Visible = False
 
        End If
  If HD!miercoles = True Then
Frame3.Visible = False
Frame4.Visible = True
    Label19.Caption = miercoles.Caption
    Label19.Visible = True
 
    A_MI.Visible = True
    Else
    Label20.Visible = False
    lbl20_2.Visible = False
    lbl20_3.Visible = False
    lbl20_4.Visible = False
 
       End If
If HD!jueves = True Then
Frame3.Visible = False
Frame4.Visible = True
    Label21.Caption = jueves.Caption
    Label21.Visible = True
 
    A_J.Visible = True
    Else
    Label22.Visible = False
    lbl22_2.Visible = False
    lbl22_3.Visible = False
    lbl22_4.Visible = False
    Label21.Visible = False
    Label22.Enabled = False
 
 
   End If
If HD!viernes = True Then
Frame3.Visible = False
Frame4.Visible = True
    Label23.Caption = viernes.Caption
    Label23.Visible = True
        A_V.Visible = True
   Else
    Label24.Visible = False
    lbl24_2.Visible = False
    lbl24_3.Visible = False
    lbl24_4.Visible = False
 
   End If
If HD!sabado = True Then
Frame3.Visible = False
Frame4.Visible = True
    Label25.Caption = sabado.Caption
        Label25.Visible = True
 
 
    A_S.Visible = True
    Else
    Label26.Visible = False
    lbl26_2.Visible = False
    lbl26_3.Visible = False
    lbl26_4.Visible = False
    Label26.Enabled = False
 
 
    End If
If HD!domingo = True Then
Frame3.Visible = False
Frame4.Visible = True
    Label27.Caption = domingo.Caption
    Label27.Visible = True
 
 
    A_D.Visible = True
    Else
    Label28.Visible = False
    lbl28_2.Visible = False
    lbl28_3.Visible = False
    lbl28_4.Visible = False
 
   End If
 
 
End If
HD.MoveNext
Wend
 
 
Text10.Text = List1.Text
DP.MoveFirst
While Not DP.EOF
If Text10.Text = DP!id Then
Frame1.Visible = True
Label3.Caption = DP!nombre
Label5.Caption = DP!puesto
'Frame4.Visible = True
 
End If
DP.MoveNext
Wend
HH.MoveFirst
While Not HH.EOF
If Text10.Text = HH!id Then
 
Label16.Caption = HH!l_e
lbl16_2.Visible = True
lbl16_2.Caption = HH!l_s
lbl16_3.Visible = True
lbl16_3.Caption = HH!l_ds
lbl16_4.Visible = True
lbl16_4.Caption = HH!l_de
    Label16.Visible = True
 
 
Label18.Caption = HH!m_e
lbl18_2.Visible = True
lbl18_2.Caption = HH!m_s
lbl18_3.Visible = True
lbl18_3.Caption = HH!m_ds
lbl18_4.Visible = True
lbl18_4.Caption = HH!m_de
    Label18.Visible = True
 
Label20.Caption = HH!mi_e
lbl20_2.Visible = True
lbl20_2.Caption = HH!mi_s
lbl20_3.Visible = True
lbl20_3.Caption = HH!mi_ds
lbl20_4.Visible = True
lbl20_4.Caption = HH!mi_de
    Label20.Visible = True
 
Label22.Caption = HH!j_e
lbl22_2.Visible = True
lbl22_2.Caption = HH!j_s
lbl22_3.Visible = True
lbl22_3.Caption = HH!j_ds
lbl22_4.Visible = True
lbl22_4.Caption = HH!j_de
    Label22.Visible = True
 
Label24.Caption = HH!v_e
lbl24_2.Visible = True
lbl24_2.Caption = HH!v_s
lbl24_3.Visible = True
lbl24_3.Caption = HH!v_ds
lbl24_4.Visible = True
lbl24_4.Caption = HH!v_de
    Label24.Visible = True
 
 
Label26.Caption = HH!s_e
lbl26_2.Visible = True
lbl26_2.Caption = HH!s_s
lbl26_3.Visible = True
lbl26_3.Caption = HH!s_ds
lbl26_4.Visible = True
lbl26_4.Caption = HH!s_de
    Label26.Visible = True
 
Label28.Caption = HH!d_e
lbl28_2.Visible = True
lbl28_2.Caption = HH!d_s
lbl28_3.Visible = True
lbl28_3.Caption = HH!d_ds
lbl28_4.Visible = True
lbl28_4.Caption = HH!d_de
    Label28.Visible = True
 
 
End If
HH.MoveNext
Wend
 
If Frame4.Visible = False Then
x.Visible = True
End If
a1.Visible = False
A2.Visible = False
A3.Visible = False
A4.Visible = False
A5.Visible = False
A6.Visible = False
A7.Visible = False
CMDINGRESAR.Visible = True
 
End Sub 
  
 

