Sets the value of the 
PortIdProperty attached dependency property.
 
            
            
            Syntax
            
        
            Parameters
- d
 
- v
 
- null to indicate that the element is not a "port"; the empty string to indicate that the element is the default port for the Node; a non-empty string to uniquely identify the port within the Node
 
            
             
            
            
            
            
            
            
            
            
            
            
            
            See Also