Because the official XML specification does not allow for a variable number of attributes the cx:parameter element was introduced with the following elements: 

  • cx:element to add an arbitrary number of attributes
  • cx:let to specify arguments for the invoke value functions 

See the description of these elements for more details.

A cx:parameter element ignores its content and cannot be nested in an element that is not the 'user'  of the parameter. 

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