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06/04/2003 at 04:11AM PDT, ID: 20636388
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7.4

2 Dynamic Linked Dropdowns

Asked by bradderick in ColdFusion Application Server

Tags: linked, cfselect

Hi,

I am trying to create two dynamically linked drop down menus. IE Person selects product category in first drop down menu and then sub categories for that major category are automatically populated into the second drop down box.

I know there has been a few questions along similar lines to this but my knowledge of JS is just not good enough to hack them into the code on my page. Here is what i've got so far:

<cfquery name="ClasCategories" DBTYPE="DYNAMIC" datasource="mc">
SELECT ProductCategoryID, CatDescription
FROM dbo.ProductCategory
ORDER BY CatDescription ASC
</cfquery>

<cfquery name = "ClasSubCategories" DBTYPE="Dynamic" DATASOURCE="mc">
SELECT SubcatID, SubCatdescription, ProductCategoryID
FROM dbo.ProductSubCategory
ORDER BY SubCatDescription ASC
</cfquery>


    <TR>
      <TD WIDTH="116" HEIGHT="26"><STRONG><FONT COLOR="#000000">Category</FONT></STRONG></TD>
      <TD WIDTH="463" VALIGN="BOTTOM">
        <CFSELECT NAME="ProdCategory" required = "Yes" CLASS="dropdownmenu" onChange= "DYNAMIC CODE NEEDS TO GO HERE (i think)" >
          <OPTION VALUE="0">Select Category</OPTION>
          <CFOUTPUT QUERY="clascategories">
            <OPTION VALUE="#ProductCategoryID#">#CatDescription#</OPTION>
          </CFOUTPUT> </CFSELECT> &nbsp; *</TD>
    </TR>
    <TR>
      <TD HEIGHT="40"><STRONG>Sub-Category</STRONG></TD>

      <TD VALIGN="MIDDLE">
        <CFSELECT NAME="Subcategory" required ="Yes" CLASS="dropdownmenu">
          <OPTION VALUE="0">Select Sub-Category</OPTION>
              <CFOUTPUT QUERY="ClasSubCategories">
              <OPTION VALUE="#SubCatID#">#SubCatDescription#</OPTION>
              </CFOUTPUT>      
        </CFSELECT> &nbsp; *</TD>
    </TR>

----end code cut----

Any help would be great.

Cheers,
Brad
 
Keywords: 2 Dynamic Linked Dropdowns
Title
1 Multiple Related Selects with ColdFusio…
 
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About this solution

Zone: ColdFusion Application Server
Tags: linked, cfselect
Sign Up Now!
Solution Provided By: anandkp
Participating Experts: 2
Solution Grade: A
 
 
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