get Number Property
Get a named number property.
Parameters
path
The path to the property. Normally this is just the name of the property, but if it is in a nested ViewModelInstance, you can refer to it from a higher level with / characters as delimiters, e.g. "My Nested VM Property/My Nested Number Property".
Throws
If path does not refer to a valid property or if the property is not a number property.