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Wildcard characters in unbound Combo Box.

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Last Modified: 2013-12-03
I have a form with several combo boxes and check boxes plus a subform.

Each combo box has a rowsource pointing to a specific field of a table.

When the user makes a selection in one of the combo boxes, the subform is populated with matching records through the LinkChildFields and LinkMasterFields properties.

If selections are made from several combo boxes and the associated check boxes are checked, the LinkChildFields and LinkMasterFields properties are developed from a concatenated string representing the chosen fields.

Everything works fine.

Now, however, I've been asked to provide wildcard (*) searching in several of the unbound combo boxes.  I can't figure out how to pass wildcard characters to the combo box to populate the subform.

Any help would be sincerely appreciated.
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Commented:
Hi colin4,

Use "Like '" & Me.ComboboxValue & "'" instead of using the = operator and they should be able to use the *

Kelly

Author

Commented:
Thanks for the quick response, Kelly.

I'm having trouble correcting the following code to match your suggestion:

Me.sfmChemno_Browse.LinkChildFields = "pif_chemical_desc"
Me.sfmChemno_Browse.LinkMasterFields = "cmboChemicalDescription"

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Commented:
Hi again Kelly,

Thanks for your continued help.  Sorry to be such a nuisance.

My subform uses a single table as the "record source" and doesn't use a "rowsource" property.  It returns a dynaset  record collection based on the Child and Master links.

Each combo box in the Master form represents the contents of a unique matching field(s) in the record source of the subform.

The LinkChildFields and LinkMasterFields properties are the only connection between the Master form and the Child form (subform).  The only "rowsource" definitions that exist are in the various combo boxes that pull a single field from an external table.  The code for each combo box creates the unique Child and Master field property strings.

The check boxes are evaluated when a separate button is pressed, and concatenated strings for the Child and Master field properties are passed to the subform.

All of the code for passing the contents of the combo boxes and checking the status of the check boxes (through the LinkChildFields and LinkMasterFields properties) exist in the Master form.  Nothing is evaluated in the subform.

Perhaps I've misunderstood your suggestions and there actually is an automatically created "where" clause buried somewhere in the forms.  If there is, I didn't create it.

I've looked at the SQL code view within both forms and can't find a "where" equivalent.

Here is the code for one of the combo boxes:

SELECT DISTINCTROW RCHEMNOD_PIF_CROSS_REFERENCE.pif_chemical_num
FROM RCHEMNOD_PIF_CROSS_REFERENCE
GROUP BY RCHEMNOD_PIF_CROSS_REFERENCE.pif_chemical_num;





Scott McDaniel (EE MVE )Infotrakker Software
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