Freelance Web Development

Here is a CF Function that generates a pulldown of USA states:

<cffunction name="SelectState">

 	<cfargument	name="selected"	default="Select State:">
	<cfargument	name="name"  	default="state">
	<cfargument	name="id"  		default="#name#">
	<cfargument	name="omit"  	default="">
	<cfargument	name="ability"  default="enabled">
	<cfargument	name="onchange" default="">
	<cfargument	name="value"  	default="abbreviations">
	<cfargument	name="label"  	default="fullnames">
	<cfset abbreviations=
			"00,AL,AK,AZ,AR,CA,CO,CT,DE,DC,FL,GA,HI,ID,IL,IN,IA,KS,KY,LA,ME,MD,MA,MI,MN,MS,MO,MT,NE,NV,NH,NJ,NM,NY,NC,ND,OH,OK,OR,PA,PR,RI,SC,SD,TN,TX,UT,VT,VA,WA,WV,WI,WY,--">
	<cfset fullnames=
			"Select State:,Alabama,Alaska,Arizona,Arkansas,California,Colorado,Connecticut,Delaware,D.C.,Florida,Georgia,Hawaii,Idaho,Illinois,Indiana,Iowa,Kansas,Kentucky,Louisiana,Maine,Maryland,Massachusetts,Michigan,Minnesota,Mississippi,Missouri,Montana,Nebraska,Nevada,New Hampshire,New Jersey,New Mexico,New York,North Carolina,North Dakota,Ohio,Oklahoma,Oregon,Pennsylvania,Puerto Rico,Rhode Island,South Carolina,South Dakota,Tennessee,Texas,Utah,Vermont,Virginia,Washington,West Virginia,Wisconsin,Wyoming,NOT IN USA">

	<cfoutput>
	<select
		name="#name#" id="#id#" #ability#
		<cfif isdefined("style")>style="#style#"</cfif>
 		<cfif isdefined("onchange")>onchange="#onchange#"</cfif>
	>
	<cfloop from="1" to="#listlen(fullnames)#" index="state">
		<cfif not listcontains(omit,#listgetat(evaluate(value), state)#) and not listcontains(omit,#listgetat(evaluate(label), state)#)>
			<option value="#listgetat(evaluate(value), state)#"
				<cfif #listgetat(evaluate(value), state)# is "#selected#">selected</cfif>
	 			<cfif isdefined("style")>style="#style#"</cfif>>
				#listgetat(evaluate(label), state)#
			</option>
		</cfif>
	</cfloop>
	</select>
	</cfoutput>

</cffunction>

And to invoke it for display in your form:

#session.utils.SelectState()#

This assumes you loaded the CFC into a session variable called ‘utils’. As you can see, you can pre-select a state, suitable for an update form.

You can configure what is shown for each option and what is the value using the ‘value’ and ‘display’ arguments.

Next week I’ll show a function for displaying countries as well. They work together so that if you choose a state, the country changes to USA. And if you pick another country, the state changes to ‘not in usa’. This is hinted by the ‘onchange’ argument you might have noticed.

ColdFusion, Web Coding