Forms of Event and Command Parameters

Parameters of character type can be one of the following forms:

• Single parameter

  The parameter must be unique within the definition.

• Multivalue

  The parameter name does not have to be unique within the definition. Multiple instances of a multivalue parameter can be defined; each instance has a different value.

• Group of subparameters

  The group parameter name must be unique within the definition, but multiple parameter instances can be defined, each specifying a unique subparameter. For instance, if you have parameters called Filter.A and Filter.B, then A and B are subparameters of the group parameter Filter.

The following table illustrates the usage of parameters of the three forms of character fields. Parameters must be specified in a form similar to what is shown in this table.

Parameter Name	Parameter Value
SingleParam	Value
MultiValueParam	Value1
MultiValueParam	Value2
GroupParam.SubParam1	Value
GroupParam.SubParam2	Value