It's a browser limitation. When the back button is pressed, the 'onchange' handler of the first dropdown isn't fired, so the second dropdown doesn't have any options to be automatically selected. You might try putting a script at the bottom of the page (within the BODY tags, after the dropdowns) that checks to see if the first dropdown is selected, and if so, populate the second. that might get it repopulated in time for IE to select what was selected when the form was submitted and the Back button pressed, althuogh I'm not sure. Depends on when IE resets to the default, on page load, or when generating the dropdown.
HTH, barneyb > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Sent: Friday, March 21, 2003 8:27 AM > To: CF-Talk > Subject: <CF_CEO_Dynamic_Pull_Down_Menus> Client Management ??? > > > I've got a JavaScript that takes the selection from the first > pull down menu > and populates the second pull down menu based on the first. The > Script works > fine and give the result page it's suppose to after submitting > the form. The > problem is, when you hit the back button, the first pull down > menu is still > selected but the second dynamically populated pull down has gone > blank. I've > got a CEO that is not happy about this. He wants the selection > to stay when > the user hits the back button. Is this a browser state limitation? > > Here's some code. Any comments are appreciated!!! > > > <SCRIPT LANGUAGE="JavaScript"> > > <!-- Begin > new Array( > <CFOUTPUT query="QUERYNAME_ONE"> > new Array("#Part_Number1# - #prod_type#", "#Part_Number1#"), > </CFOUTPUT> > new Array("", "") > ), > new Array( > <CFOUTPUT query="QUERYNAME_TWO"> > new Array("#Part_Number1# - #prod_type#", "#Part_Number1#"), > </CFOUTPUT> > new Array("", "") > ) > ); > function fillSelectFromArray(selectCtrl, itemArray, goodPrompt, > badPrompt, > defaultItem) { > var i, j; > var prompt; > // empty existing items > for (i = selectCtrl.options.length; i >= 0; i--) { > selectCtrl.options[i] = null; > } > prompt = (itemArray != null) ? goodPrompt : badPrompt; > if (prompt == null) { > j = 0; > } > else { > selectCtrl.options[0] = new Option(prompt); > j = 1; > } > if (itemArray != null) { > // add new items > for (i = 0; i < itemArray.length; i++) { > selectCtrl.options[j] = new Option(itemArray[i][0]); > if (itemArray[i][1] != null) { > selectCtrl.options[j].value = itemArray[i][1]; > } > j++; > } > // select first item (prompt) for sub list > selectCtrl.options[0].selected = true; > } > } > // End --> > </script> > > THE SELECT PART OF THE FORM > > <select name="man" size="1" onChange="fillSelectFromArray(this.form.pn, > ((this.selectedIndex == -1) ? null : team[this.selectedIndex-1]));"> > <option value="0" SELECTED>Choose > One</option> > <CFOUTPUT query="ViewSearch_MANUFACTURER"> > <option value="#Vendor#">#Vendor#</option> > </CFOUTPUT> > </select> > <font face="trebuchet ms, trebuchet, verdana, > arial, helvetica" size="3"><b>Part Number:</b></font> > <SELECT NAME="pn" SIZE="1"> > <OPTION> > </OPTION> > <OPTION> > </OPTION> > <OPTION> > </OPTION> > <OPTION> > </OPTION> > <OPTION> > </OPTION> > </SELECT> > > I don't know if this is a bug, undocumented feature or correct behavior? > > But has anybody run into this before? > > > > I have some code such as this in a CFC creating an array of queries. > > > > <!--- > > ******************* > > Pseudo code example > > ******************* > > ---> > > > > <cfset QueryAry = ArrayNew(1)> > > > > <!--- This query will return one record ---> > > <cfquery name="First" datasource="DSN"> > > SELECT Field1, Field2, Field3 > > FROM Table1 > > WHERE ID = #IDVar# > > </cfquery> > > <cfset QueryAry[1] = First> > > > > <!--- This query will return zero to many records ---> > > <cfquery name="Second" datasource="DSN"> > > SELECT Field4, Field5, Field6 > > FROM Table2 > > WHERE ID = #IDVar# > > </cfquery> > > <cfset QueryAry[2] = Second> > > > > <cfreturn QueryAry> > > > > Then when I try to output the query results stored in the array returned > > from the CFC. > > > > <cfoutput> > > #IsQuery(QueryAry[1])# <!--- This returns True ---> > > #IsQuery(QueryAry[2])# <!--- This returns True ---> > > </cfoutput> > > > > <!--- Case 1: This does not work ---> > > <cfoutput query="QueryAry[1]"> > > #Field1# > > #Field2# > > #Field3# > > </cfoutput> > > > > <cfoutput query="QueryAry[2]"> > > #Field4# > > #Field5# > > #Field6# > > </cfoutput> > > <!--- End Case 1 ---> > > > > <!--- Case 2: This does not work ---> > > <cfloop query="QueryAry[1]"> > > #Field1# > > #Field2# > > #Field3# > > </cfloop> > > > > <cfloop query="QueryAry[2]"> > > #Field4# > > #Field5# > > #Field6# > > </cfloop> > > <!--- End Case 2 ---> > > > > <!--- Case 3: This does work ---> > > <cfoutput> > > #QueryAry[1]["Field1"][1]# > > #QueryAry[1]["Field2"][1]# > > #QueryAry[1]["Field3"][1]# > > </cfoutput> > > > > <cfloop from="1" to="#QueryAry[2].RecordCount#" index="i"> > > <cfoutput> > > #QueryAry[2]["Field4"][i]# > > #QueryAry[2]["Field5"][i]# > > #QueryAry[2]["Field6"][i]# > > </cfoutput> > > </cfloop> > > <!--- End Case 3 ---> > > > > <!--- *** End Pseudo Code Example *** ---> > > > > I would be interested in any comments on this behavior by > others in the CF > > community, as well as Macromedia types if they care too say something. > > > > -------------- > > Ian Skinner > > Web Programmer > > BloodSource > > Sacramento, CA > > > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Archives: http://www.houseoffusion.com/cf_lists/index.cfm?forumid=4 Subscription: http://www.houseoffusion.com/cf_lists/index.cfm?method=subscribe&forumid=4 FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Signup for the Fusion Authority news alert and keep up with the latest news in ColdFusion and related topics. http://www.fusionauthority.com/signup.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
