ComboBox (Null value variable error)

[Greg (codepug@gmail.com)]

Private Sub cboBody_KeyDown (KeyCode As Integer, SHIFT As Integer)
'Delete combobox entry if Del or Backspace key is hit.
If (KeyCode = 46) Or (KeyCode = 8) Then Me.cboBody = ""
End Sub

I have used identical code in the KeyDown event of my other comboboxes
to clear the box when
the delete or backspace key is pressed. It works for many identical
comboboxes just fine except
for the cboBody combo. I have looked this over and cannot find any
differences in the combobox's that are working ans the one that is
not I get the following error message?

Error: "You tried to assign the Null value to a variable that is not a
Variant data type"

Is the combobox a variable? Any ideas?

[JvC]

Re: ComboBox (Null value variable error)

Your combo box is bound to a field in the database. The field won't
accept null values. You need to go into the table design, and allow the
field to allow nulls.

John

reg (codepug@gmail. com) formulated the question :

Private Sub cboBody_KeyDown (KeyCode As Integer, SHIFT As Integer)
'Delete combobox entry if Del or Backspace key is hit.
If (KeyCode = 46) Or (KeyCode = 8) Then Me.cboBody = ""
End Sub
>
I have used identical code in the KeyDown event of my other comboboxes
to clear the box when
the delete or backspace key is pressed. It works for many identical
comboboxes just fine except
for the cboBody combo. I have looked this over and cannot find any
differences in the combobox's that are working ans the one that is
not I get the following error message?
>
Error: "You tried to assign the Null value to a variable that is not a
Variant data type"
>
Is the combobox a variable? Any ideas?

[Greg (codepug@gmail.com)]

Re: ComboBox (Null value variable error)

Thanks JvC

But my other combo boxes are working. And, yes you are correct they
are bound to a Tables field, but I do not
see, in table design, where I would allow a field to accept null
values? The field by the way is LongInteger as is the case
in the other comboboxes that are working.

Thanks Greg


On Jul 25, 3:12 pm, JvC <johnv...@earth link.netwrote:

Your combo box is bound to a field in the database. The field won't
accept null values. You need to go into the table design, and allow the
field to allow nulls.
>
John
>
reg (code...@gmail. com) formulated the question :
>
>
>

Private Sub cboBody_KeyDown (KeyCode As Integer, SHIFT As Integer)
   'Delete combobox entry if Del or Backspace key is hit.
    If (KeyCode = 46) Or (KeyCode = 8) Then Me.cboBody = ""
End Sub

>

I have used identical code in the KeyDown event of my other comboboxes
to clear the box when
the delete or backspace key is pressed.  It works for many identical
comboboxes just fine except
for the cboBody combo.  I have looked this over and cannot find any
differences in the combobox's that are working ans the one that is
not         I get the following error message?

>

Error: "You tried to assign the Null value to a variable that is not a
Variant data type"

>

Is the combobox a variable?  Any ideas?- Hide quoted text -

>
- Show quoted text -

[JvC]

Re: ComboBox (Null value variable error)

Greg,

Strange! You can't ever assign a null to a long integer. Try setting
cboBody to 0, and see if that works.

John

Greg (codepug@gmail. com) used his keyboard to write :

Thanks JvC
>
But my other combo boxes are working. And, yes you are correct they
are bound to a Tables field, but I do not
see, in table design, where I would allow a field to accept null
values? The field by the way is LongInteger as is the case
in the other comboboxes that are working.
>
Thanks Greg
>
>
On Jul 25, 3:12 pm, JvC <johnv...@earth link.netwrote:

>Your combo box is bound to a field in the database. The field won't
>accept null values. You need to go into the table design, and allow the
>field to allow nulls.
>>
>John
>>
>reg (code...@gmail. com) formulated the question :
>>
>>
>>

>>Private Sub cboBody_KeyDown (KeyCode As Integer, SHIFT As Integer)
>>   'Delete combobox entry if Del or Backspace key is hit.
>>    If (KeyCode = 46) Or (KeyCode = 8) Then Me.cboBody = ""
>>End Sub

>>

>>I have used identical code in the KeyDown event of my other comboboxes
>>to clear the box when
>>the delete or backspace key is pressed.  It works for many identical
>>comboboxes just fine except
>>for the cboBody combo.  I have looked this over and cannot find any
>>differences in the combobox's that are working ans the one that is
>>not         I get the following error message?
>>Error: "You tried to assign the Null value to a variable that is not a
>>Variant data type"

>>

>>Is the combobox a variable?  Any ideas?- Hide quoted text -

>>
>- Show quoted text -

[Greg (codepug@gmail.com)]

Re: ComboBox (Null value variable error)

Private Sub cboBody_KeyDown (KeyCode As Integer, SHIFT As Integer)
'Delete combobox entry if Del or Backspace key is hit.
If (KeyCode = 46) Or (KeyCode = 8) Then Me.cboBody = "" '<--- I
changed this to 0, and it worked
End Sub

I assigned the Me.cboBody = 0 instead of = "" and it worked.
What's confusing is why the other comboboxes accepted "" and they are
also storing numbers.




On Jul 25, 3:32 pm, "Greg (code...@gmail. com)" <code...@gmail. com>
wrote:

Thanks JvC
>
But my other combo boxes are working.  And, yes you are correct they
are bound to a Tables field, but I do not
see, in table design, where I would allow a field to accept null
values? The field by the way is LongInteger as is the case
in the other comboboxes that are working.
>
Thanks Greg
>
On Jul 25, 3:12 pm, JvC <johnv...@earth link.netwrote:
>
>
>

Your combo box is bound to a field in the database. The field won't
accept null values. You need to go into the table design, and allow the
field to allow nulls.

>

John

>

reg (code...@gmail. com) formulated the question :

>

Private Sub cboBody_KeyDown (KeyCode As Integer, SHIFT As Integer)
   'Delete combobox entry if Del or Backspace key is hit.
    If (KeyCode = 46) Or (KeyCode = 8) Then Me.cboBody = ""
End Sub

>

I have used identical code in the KeyDown event of my other comboboxes
to clear the box when
the delete or backspace key is pressed.  It works for many identical
comboboxes just fine except
for the cboBody combo.  I have looked this over and cannot find any
differences in the combobox's that are working ans the one that is
not         I get the following error message?

>

Error: "You tried to assign the Null value to a variable that is not a
Variant data type"

>

Is the combobox a variable?  Any ideas?- Hide quoted text -

>

- Show quoted text -- Hide quoted text -

>
- Show quoted text -