Hi everyone.
I have a page that has 2 dynamic drop down menus in that depending what is selected in the first drop down will display certain criteria in the 2nd drop down. I have this working in one table just fine, but then I tried it in another table and I can't get the code to work for some reason. I can choose the first drop down menu, but then it has a timed out error that displays after I make my first choice. I can't see the Cold Fusion error, so I'm not sure what's wrong. Here's what I have in my table called Elastomer_Cut_Size:
Column Name Data Type
ItemID Int
Elastomer Part_Number nvarchar(50)
X_mm Int
Y_mm Int
Elastomer_Cost Money
Cutting_Cost Money
K_Factor numeric(18,1)
Sell_Price Money
Here's the code I have:
<!--- store the selected Main_Group variable variable after the first select boxes submits itself --->
<cfif isDefined('form.select_Elastomer_Part_Number')>
<cfset page.select_Elastomer_Part_Number = form.select_Elastomer_Part_Number>
</cfif>
<cfoutput>
<form name="DropDown" method="post">
<!--- query DB for the first drop down list --->
<cfquery name="get_Elastomer_Part_Number" datasource="#application.DataSource#">
SELECT DISTINCT Elastomer_Part_Number
FROM Elastomer_Cut_Size
ORDER BY Elastomer_Part_Number
</cfquery>
<!--- first drop down list --->
<!--- NOTICE the onChange javascript event in the select tag, this is what submits the form after the first selection --->
<select name="select_Elastomer_Part_Number" required="yes" onchange="this.form.submit()">
<option>Select Part Number</option>
<!--- dynamically populate the first drop down list based on the get_Part_Number query --->
<!--- NOTICE the CFIF within the option tag, this says, if the first selection has been made, display the chosen option when the page reloads --->
<cfloop query="get_Elastomer_Part_Number">
<option value="#Elastomer_Part_Number#" <cfif isDefined('form.select_Elastomer_Part_Number')><cfif form.select_Elastomer_Part_Number eq "#Elastomer_Part_Number#">selected</cfif></cfif>>#Elastomer_Part_Number#</option>
</cfloop>
</select>
<p>
<!--- if the first selection has been made, display the second drop down list with the appropriate results --->
<cfif isDefined('page.select_Elastomer_Part_Number')>
<!--- query DB for second drop down list, based on the selected item from the first list --->
<cfquery name="get_Y" datasource="#application.DataSource#">
SELECT DISTINCT Y_mm
FROM Elastomer_Cut_Size
WHERE Elastomer_Part_Number = #page.select_Elastomer_Part_Number#
ORDER BY Y_mm
</cfquery>
<!--- second drop down list --->
<select name="select_Y" required="yes">
<option>Select Y</option>
<!--- dynamically populate the second drop down list based on the get_X query --->
<cfloop query="get_Y">
<option value="#Y_mm#">#Y_mm#</option>
</cfloop>
</select>
</cfif>
</form>
</cfoutput>
Can anyone tell me what I'm doing wrong? When I try to run a query for the 2nd drop down is when I have problems.I actually don't even need another drop down to display. I just want whatever part number is chosen in the first drop down, to run a calculation. Each part number has a different calcualation. I can get this to work if I just choose a Part number and display some text under the cfif isDefined('page.select_Elastomer_Part_Number'). But if I try to put a CFQuery after this isDefined, the timed out error displays. Can someone please help me? Thanks.
Andy
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