BOOL CCFXRequest::AttributeExists(LPCSTR lpszName)
Checks whether the parameter was passed to the tag. Returns True if the parameter is available; False, otherwise.
| Parameter | Description |
|---|---|
|
lpszName |
Name of the parameter to check (case insensitive) |
The following example checks whether the user passed an attribute named DESTINATION to the tag, and throws an exception if the attribute was not passed:
if ( pRequest->AttributeExists("DESTINATION")==FALSE )
{
pRequest->ThrowException(
"Missing DESTINATION parameter",
"You must pass a DESTINATION parameter in "
"order for this tag to work correctly." ) ;
}