cfloop: looping over a COM collection or structure

Last updated on May 30, 2024 | Also applies to ColdFusion

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CFML Reference User Guide
ColdFusion functions
ColdFusion tags
1. ColdFusion tag summary
2. ColdFusion tags by category
  1. Application framework tags
    1. cfapplication
    2. cfassociate
    3. cferror
    4. cfimport
    5. cfinterface
    6. cflock
    7. cfscript
    8. cfthread
  2. Communications tags
  3. Database manipulation tags
  4. Data output tags
    1. cfchart
  5. Debugging tags
    1. cfdump
    2. cftimer
    3. cftrace
  6. Exception handling tags
    1. cfcatch
    2. cferror
    3. cffinally
    4. cfrethrow
    5. cfthrow
    6. cftry
  7. Extensibility tags
    1. cfchart
    2. cfchartdata
    3. cfchartseries
    4. cfcollection
    5. cfcomponent
    6. cfexecute
    7. cfftp
    8. function
    9. cfindex
    10. cfinterface
    11. cfinvoke
    12. cfinvokeargument
    13. cfobject
    14. cfproperty
    15. cfreport
    16. cfreportparam
    17. cfreturn
    18. cfsearch
    19. cfsharepoint
    20. cfspreadsheet
    21. cfwddx
    22. cfxml
  8. File management tags
    1. cfdirectory
    2. cffile
    3. cffileupload
    4. cfftp
    5. cfzip
    6. cfzipparam
  9. Flow-control tags
    1. cfabort
    2. cfbreak
    3. cfcase
    4. cfcontinue
    5. cfdefaultcase
    6. cfelse
    7. cfelseif
    8. cfexecute
    9. cfexit
    10. cfif
    11. cfinclude
    12. cflocation
    13. cfloop
    14. cfrethrow
    15. cfswitch
    16. cfthrow
    17. cftry
  10. Forms tags
    1. cfapplet
    2. cfcalendar
    3. cffileupload
    4. cfform
    5. cfformgroup
    6. cfformitem
    7. cfgrid
    8. cfgridcolumn
    9. cfgridrow
    10. cfgridupdate
    11. cfinput
    12. cfpdf
    13. cfpdfform
    14. cfpdfformparam
    15. cfpdfparam
    16. cfpdfsubform
    17. cfselect
    18. cfslider
    19. cftextarea
    20. cftree
    21. cftreeitem
  11. Internet Protocol tags
    1. cfajaximport
    2. cfajaxproxy
    3. cfftp
    4. cffeed
    5. cfimap
    6. cfhttp
    7. cfhttpparam
    8. cfldap
    9. cfmail
    10. cfmailparam
    11. cfmailpart
    12. cfpop
    13. cfsprydataset
  12. Page processing tags
    1. cfcache
    2. cfcontent
    3. cfflush
    4. cfheader
    5. cfhtmlhead
    6. cfinclude
    7. cfprocessingdirective
    8. cfsetting
    9. cfsilent
  13. Security tags
  14. Variable manipulation tags
    1. cfcookie
    2. cfdump
    3. cfparam
    4. cfregistry
    5. cfsavecontent
    6. cfschedule
    7. cfset
    8. cfsetting
  15. Other tags
    1. cfimage
    2. cflog
    3. cfregistry
3. Tags a-b
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6. Tags g-h
  1. cfgraph
  2. cfgraphdata
  3. cfgrid
  4. cfgridcolumn
  5. cfgridrow
  6. cfgridupdate
  7. cfheader
  8. cfhtmlhead
  9. cfhtmltopdf
  10. cfhtmltopdfitem
  11. cfhttp
  12. cfhttpparam
7. Tags i
  1. cfif
  2. cfimage
  3. cfimap
  4. cfimapfilter
  5. cfimpersonate
  6. cfimport
  7. cfinclude
  8. cfindex
  9. cfinput
  10. cfinsert
  11. cfinterface
  12. cfinvoke
  13. cfinvokeargument
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  1. cfparam
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  3. cfpdfform
  4. cfpdfformparam
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  7. cfpod
  8. cfpop
  9. cfpresentation
  10. cfpresentationslide
  11. cfpresenter
  12. cfprint
  13. cfprocessingdirective
  14. cfprocparam
  15. cfprocresult
  16. cfprogressbar
  17. cfproperty
  18. cfquery
  19. cfqueryparam
11. Tags r-s
  1. cfregistry
  2. cfreport
  3. cfreportparam
  4. cfrethrow
  5. cfreturn
  6. cfsavecontent
  7. cfschedule
  8. cfscript
  9. cfsearch
  10. cfselect
  11. cfservlet
  12. cfservletparam
  13. cfset
  14. cfsetting
  15. cfsharepoint
  16. cfsilent
  17. cfslider
  18. cfspreadsheet
  19. cfsprydataset
  20. cfstoredproc
  21. cfswitch
12. Tags t
  1. cftable
  2. cftextarea
  3. cftextinput
  4. cfthread
  5. cfthrow
  6. cftimer
  7. cftooltip
  8. cftrace
  9. cftransaction
  10. cftree
  11. cftreeitem
  12. cftry
13. Tags u-z
  1. cfupdate
  2. cfwddx
  3. cfwebsocket
  4. cfwindow
  5. cfxml
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  7. cfzipparam
CFML Reference
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Cloud services

Note:

As of ColdFusion (2021 release), CORBA has been removed. You can no longer use CORBA-related features, functions, and tags.

Description

The cfloop collection attribute loops over every object within a COM/DCOM collection object, or every element in a structure:

A COM/DCOM collection object is a set of similar items referenced as a group. For example, the group of open documents in an application is a collection.
A structure contains a related set of items, or it can be used as an associative array. Looping is particularly useful when using a structure as an associative array.
In the loop, each item is referenced by the variable name in the item attribute. The loop executes until all items have been accessed.
The collection attribute is used with the item attribute. In the example that follows, item is assigned a variable called file2, so that with each cycle in the cfloop, each item in the collection is referenced. In the cfoutput section, the name property of the file2 item is referenced for display.
For more information, see Integrating COM and CORBA Objects in CFML Applications in the Developing ColdFusion Applications.

Example

departments = structNew("Ordered");

/** On iterating this struct, you get the values in insertion order, which is the way you inserted the values. **/

/** Create a structure and set its contents. **/

departments.John = "Sales";

departments.Tom = "Finance";

departments.Mike = "Education";

departments.Andrew = "Marketing";

/** Build a table to display the contents **/

</cfscript>

<tr>

<td><b>Employee</b></td>

<td><b>Department</b></td>

</tr>

<tr>

<td>#person#</td>

<td>#Departments[person]#</td>

</tr>

</cfloop>

</table>

</cfoutput>

<cfscript> departments = structNew("Ordered"); /** On iterating this struct, you get the values in insertion order, which is the way you inserted the values. **/ /** Create a structure and set its contents. **/ departments.John = "Sales"; departments.Tom = "Finance"; departments.Mike = "Education"; departments.Andrew = "Marketing"; /** Build a table to display the contents **/ </cfscript> <cfoutput > <table cellpadding="2" cellspacing="2"> <tr> <td><b>Employee</b></td> <td><b>Department</b></td> </tr>  <cfloop collection=#departments# item="person"> <tr> <td>#person#</td> <td>#Departments[person]#</td> </tr> </cfloop> </table> </cfoutput>

<cfscript>
departments = structNew("Ordered");
 /** On iterating this struct, you get the values in insertion order, which is the way you inserted the values. **/
 /** Create a structure and set its contents. **/
      
     departments.John = "Sales";
     departments.Tom = "Finance";
     departments.Mike = "Education";
     departments.Andrew = "Marketing";
      
 /** Build a table to display the contents **/
      
</cfscript>
<cfoutput >
<table cellpadding="2" cellspacing="2">
    <tr>
        <td><b>Employee</b></td>
        <td><b>Department</b></td>
    </tr>
<!--- Use cfloop to loop through the departments structure.The item attribute specifies a name for the structure key. --->
   <cfloop collection=#departments# item="person">
        <tr>
            <td>#person#</td>
            <td>#Departments[person]#</td>
        </tr>
    </cfloop>
</table>
</cfoutput>

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cfloop: looping over a COM collection or structure

Description

Example

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