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05.20.2008 at 09:43AM PDT, ID: 23417919
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7.5

Query Based Upon Dependent Combo Boxes Won't Refresh

Asked by kmartinenko in Access Forms, Microsoft Access Database, Access Coding/Macros

Tags: ,

I have a problem with a pair of combo boxes that I am trying to use to query a table based upon the selections made in said combo boxes.

route_combo selects the distinct route from table InterstopData2
timeperiod_combo selects the distinct trip from table Query2 (see code snippets below for rowsource)

Now, the dependency relies on the selection from route_combo so that the route_combo_AfterUpdate() VBA code is

Me.timeperiod_combo.Requery

The timeperiod_combo box returns a list of times specific to the route selected in route_combo

*This Works Perfectly*
==================

Now, here's my problem.  I created a new query (Query3) that returns all rows and fields in the InterstopData2 table that match the selections from these two combo boxes.  It works perfectly for the very first selection (route 1) for route_combo, and the very first selection for timeperiod_combo (6:00 AM).  But when I close out the query table and select a new route and new time, the query does not refresh, and no rows or fields are returned.  See below for code snippet for said Query3

What am I missing here that is causing the query not to return data given a new selection other than the first row for each combo box?  
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/timeperiod_combo rowsource/
SELECT DISTINCT Query2.TRIP FROM Query2 WHERE ((InterstopData2.ROUTE)=Forms!Form1!route_combo); 
/end/
 
/route_combo rowsource/
SELECT DISTINCT InterstopData2.ROUTE FROM InterstopData2; 
/end/
 
/SQL for Query3/
SELECT InterstopData2.ID, InterstopData2.ROUTE, InterstopData2.STOP, InterstopData2.TRIP, InterstopData2.DIR, InterstopData2.LOCATION, InterstopData2.[ON], InterstopData2.[OFF], InterstopData2.LOAD, InterstopData2.RIDERSHIP, InterstopData2.RUNTIME, InterstopData2.SAMPLES
FROM InterstopData2, Query2
WHERE (((InterstopData2.ROUTE)=[Forms]![Form1]![route_combo]) AND ((InterstopData2.TRIP)=[Forms]![Form1]![timeperiod_combo]));
/end/
[+][-]05.20.2008 at 11:27AM PDT, ID: 21608818

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[+][-]05.20.2008 at 11:31AM PDT, ID: 21608862

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[+][-]05.20.2008 at 01:42PM PDT, ID: 21610159

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[+][-]05.20.2008 at 03:11PM PDT, ID: 21610815

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[+][-]05.20.2008 at 04:17PM PDT, ID: 21611095

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[+][-]05.20.2008 at 04:33PM PDT, ID: 21611166

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[+][-]05.20.2008 at 06:11PM PDT, ID: 21611506

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About this solution

Zones: Access Forms, Microsoft Access Database, Access Coding/Macros
Tags: Access 2007, VBA, SQL
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Solution Provided By: capricorn1
Participating Experts: 2
Solution Grade: B
 
 
[+][-]05.20.2008 at 09:51PM PDT, ID: 21612189

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[+][-]05.22.2008 at 12:09PM PDT, ID: 21626695

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