734
Chapter 3: ColdFusion Functions
ListSetAt
Description
Replaces the contents of a list element.
Returns
A copy of a list, with a new value assigned to the element at a specified position.
Category
List functions
Function syntax
ListSetAt
(
list
,
position
,
value
[,
delimiters
])
See also
ListDeleteAt
,
ListGetAt
,
ListInsertAt
; “Lists” in Chapter 3, “Using ColdFusion Variables,”
in
ColdFusion MX Developer’s Guide
History
ColdFusion MX: Changed delimiter modification: ColdFusion MX does not modify delimiters
in the list. (In earlier releases, in some cases, replaced delimiters with the first character in the
delimiters
parameter.)
Parameters
Usage
When assigning an element to a list, ColdFusion inserts a delimiter. If
delimiters
contains more
than one delimiter, ColdFusion uses the first delimiter in the string, or, if
delimiters
was
omitted, a comma.
ColdFusion ignores empty list elements; thus, the list "a,b,c,,,d" has four elements.
Example
<h3>ListSetAt Example</h3>
<!--- Find a list of users who wrote messages --->
<cfquery name = "GetMessageUser" datasource = "cfdocexamples">
SELECT Username, Subject, Posted
FROM Messages
Parameter
Description
list
A list or a variable that contains one.
position
A positive integer or a variable that contains one. Position at which to set a value.
The first list position is 1.
value
An element or a list of elements.
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.
Содержание COLFUSION MX 7 - INSTALLING AND USING COLDFUSION MX
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