Return The Connected BluetoothLE Address

I' am trying to return the connected address in "when.BluetoothLE.connected" like it's displayed in a founded device list.I had to clear the address for other reasons so it would be easy I could ask the server his address. But when I try to call the advertising device address by name it returns nothing. Don't know what I am doing wrong...

Did some over coding. In stead of refreshing it, I leaved it... and when I pick an other address I set the label.