MACROMEDIA COLDFUSION 4.5-CFML LANGUAGE, Справочник

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524 CFML Language Reference
StructCount
Returns the number of keys in the specified structure.
See also StructClear , StructDelete , StructFind , StructInsert , StructIsEmpty ,
StructKeyArray , StructKeyArray , and StructUpdate .
Syntax
StructCount ( structure)
structure
Structure to be accessed.
Usage
This function throws an exception if structure does not exist.
Example
<!--- This view-only example illustrates usage
of StructCount. --->
<P>This file is similar to addemployee.cfm, which is called
by StructNew, StructClear, and StructDelete. To test this file,
copy the StructCount function to the appropriate place
in addemployee.cfm.
<!---
<CFSWITCH EXPRESSION="#ThisTag.ExecutionMode#">
<CFCASE VALUE="start">
<CFIF StructIsEmpty(attributes.EMPINFO)>
<CFOUTPUT>Error. No employee data was passed.</CFOUTPUT>
<CFEXIT METHOD="ExitTag">
<CFELSE>
<CFQUERY NAME="AddEmployee" DATASOURCE="cfsnippets">
INSERT INTO Employees
(FirstName, LastName, Email, Phone, Department)
VALUES
<CFOUTPUT>
(
‘#StructFind(attributes.EMPINFO, "firstname")#’ ,
‘#StructFind(attributes.EMPINFO, "lastname")#’ ,
‘#StructFind(attributes.EMPINFO, "email")#’ ,
‘#StructFind(attributes.EMPINFO, "phone")#’ ,
‘#StructFind(attributes.EMPINFO, "department")#’
)
</CFOUTPUT>
</CFQUERY>
</CFIF>
<CFOUTPUT><hr>Employee Add Complete
<P>#StructCount(attributes.EMPINFO)# columns added.</CFOUTPUT>
</CFCASE>
</CFSWITCH> --->