Determines whether the parameter has any default values. Read
Property IsDefaultValueSet As Boolean
If this property is True, then there are values currently available as the default values; if, on the other hand, it is False, no values are available, and the user will have to enter a value, instead of choosing one from a list. If IsCurrentValueSet Property is False and IsDefaultValueSet Property is False, the user will definitely be prompted for a parameter value. If the default value is set, but the current value is not, the user will not be prompted for a value, and the first default value will become the current value.
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