ColdFusion Developer's Guide

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Tags for using CFCs
The following table lists the tags that you use to instantiate or invoke a CFC. You use these
tags on the CFML page on which you instantiate or invoke the CFC.
Tag Description
cfinvoke Invokes a method of a CFC.
cfinvokeargument
CFC invocation techniques
ColdFusion provides many ways to instantiate CFCs and invoke CFC methods. The
following table lists the techniques, including the ColdFusion tags and functions that you use:
252 Building and Using ColdFusion Components
Passes the name and value of a parameter to a component method.
cfobject Creates a CFC instance.
CreateObject Creates a CFC instance.
Invocation Description For more information
cfinvoke tag Invokes a component method.
Can invoke methods of a CFC
instance or invoke the methods
transiently.
cfset tag and
assignment
statements
URL
(HTTP GET)
Form control
(HTTP POST)
Invoke methods and access
properties of a component
instance.
Transiently invokes a
component method by
specifying the component and
method names in the URL
string.
Transiently invokes a
component method using the
HTML form and input tags and
their attributes.
Flash Remoting ActionScript can transiently
invoke component methods.
Web services The cfinvoke tag and CFScript
consume web services in
ColdFusion. External
applications can also consume
CFC methods as web services.
See “Invoking CFC methods with
the cfinvoke tag” on page 253.
See “Using components directly in
CFScript and CFML” on page 256.
See “Invoking component methods
using a URL” on page 257.
See “Invoking component methods
using a form” on page 258.
See Chapter 35, “Using the Flash
Remoting Service.”
See Chapter 47, “Using Web
Services.”