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Chapter 3: ColdFusion Functions
IsStruct
Description
Determines whether a variable is a structure.
Returns
True, if
variable
is a ColdFusion structure or is a Java object that implements the java.lang.Map
interface. The return value is False if the object in
variable
is a user-defined function (UDF).
Category
Decision functions
,
Structure functions
Function syntax
IsStruct
(
variable
)
See also
Structure functions
; “Modifying a ColdFusion XML object” in Chapter 35, “Using XML and
WDDX,” in
ColdFusion MX Developer’s Guide
History
ColdFusion MX: Changed behavior: this function can be used on XML objects.
Parameters
Example
<!--- This view-only example shows the use of IsStruct. --->
<p>This file is similar to addemployee.cfm, which is called by StructNew,
StructClear, and StructDelete. It is an example of a custom tag used to
add employees. Employee information is passed through the employee
structure (the EMPINFO attribute). In UNIX, you must also add the Emp_ID.
<!---
<cfswitch expression = "#ThisTag.ExecutionMode#">
<cfcase value = "start">
<cfif
IsStruct(attributes.EMPINFO)
>
<cfoutput>Error. Invalid data.</cfoutput>
<cfexit method = "ExitTag">
<cfelse>
<cfquery name = "AddEmployee" datasource = "cfdocexamples">
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")#’
Parameter
Description
variable
Variable name
Содержание COLFUSION MX 7-CFML
Страница 1: ...COLDFUSION MX7 CFML Reference...
Страница 20: ...20 Chapter 1 Reserved Words and Variables...
Страница 50: ...50 Chapter 2 ColdFusion Tags cfelse br Searching cfif cfloop cfif...
Страница 101: ...cfdefaultcase 101 cfdefaultcase cfswitch cfoutput Your grade is grade cfoutput...
Страница 115: ...cfdocumentsection 115 cfdocumentsection cfoutput cfdocument...
Страница 311: ...cfNTauthenticate 311 Please Try again H2 cfif cfoutput cfinclude template loginform cfm cfabort cfif cfif cflogin...
Страница 411: ...cftable 411 cftable body html...
Страница 515: ...Chr 515 maxlength 5 p input type Submit name input type RESET cfform...
Страница 605: ...GetEncoding 605 WriteOutput The encoding is theEncoding cfscript cfif...
Страница 629: ...GetProfileString 629 tr td input type Submit name Submit value Submit td td td tr table form...
Страница 655: ...IIf 655 cfoutput IIf Hour Now GTE 12 DE It is afternoon or evening DE It is morning cfoutput b...
Страница 664: ...664 Chapter 3 ColdFusion Functions cfelse h3 Conversion error h3 cfif...
Страница 687: ...IsStruct 687 cfoutput cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 693: ...IsWDDX 693 struct data wddxPacket hr xmp cfoutput packet xmp IsWDDX returns IsWDDX packet br cfoutput...
Страница 751: ...LSDateFormat 751 hr noshade cfoutput cfloop...
Страница 861: ...StructFind 861 cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 869: ...StructIsEmpty 869 cfoutput cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 903: ...Val 903 value Is the beginning numeric name form...
Страница 932: ...932 Chapter 3 ColdFusion Functions...
Страница 944: ...944 Chapter 4 ColdFusion MX Flash Form Style Reference...
Страница 962: ...962 Chapter 5 Application CFC Reference...
Страница 1008: ...1008 Chapter 6 ColdFusion MX Event Gateway Reference cfset retValue Reason reason cfreturn retValue cffunction...
Страница 1054: ...1054 Chapter 6 ColdFusion MX Event Gateway Reference...