ListValueCount

Description

Counts instances of a specified value in a list. The search is case-sensitive.

Returns

The number of instances of value in the list.

Category

List functions, String functions

Function syntax

ListValueCount(list, value [, delimiters ])

See also

ListValueCountNoCase; Lists in Using ColdFusion Variables in ColdFusion MX Developer’s Guide

Parameters

Parameter

Description

list

A list or a variable that contains one.

value

String or number, or a variable that contains one. Item for which to search. The search is case-sensitive.

delimiters

A string or a variable that contains one. Character(s) that separate list elements. The default value is comma.

If this parameter contains more than one character, ColdFusion processes each occurrence of each character as a delimiter.

Example

<cfquery name = "SearchByDepartment" datasource = "cfdocexamples">
SELECT 	Department
FROM 	Employees
</cfquery>
<h3>ListValueCount Example</h3>
<p>This example uses ListValueCount to count employees in a department.

<form action = "listvaluecount.cfm">
<p>Select a department:</p>
	<select name = "departmentName">
			<option value = "Accounting">
				Accounting
			</OPTION>	
			<option value = "Administration">
				Administration
			</OPTION>	
			<option value = "Engineering">
				Engineering
			</OPTION>	
			<option value = "Sales">
				Sales
			</OPTION>							
	</select>
<input type = "Submit" name = "Submit" value = "Search Employee List">
</form>

<!--- wait to have a string for searching defined --->
<cfif IsDefined("FORM.Submit") and IsDefined("FORM.departmentName")>
	<cfset myList = ValueList(SearchByDepartment.Department)>
	<cfset numberInDepartment = ListValueCount(myList, FORM.departmentName)> 
		 
	<cfif numberInDepartment is 0>
		<h3>There are no employees in <cfoutput>#FORM.departmentName#</cfoutput></h3>
	<cfelseIf numberInDepartment is 1>
		<cfoutput>		<p>There is only one person in #FORM.departmentName#.
		</cfoutput>
	<cfelse>
		<cfoutput>		<p>There are #numberInDepartment# people in #FORM.departmentName#.
		</cfoutput>
	</cfif>
</cfif>