Question

Hello im trying to create a class in vb and when and try to instance the class the class is without any value

Private lat As Double
Private lon As Double

Public Property Get Longitud() As Double

Longitud = lon

End Property
Public Property Get Latitud() As Double
Latitud = lat

End Property
Public Property Let Longitud(ByVal longi As Double)

Longitud = lon

End Property

Public Property Let Latitud(ByVal lati As Double)

Latitud = lat
End Property

And when im trying to instance

Dim cord As Coordenadas
Set cord = New Coordenadas
cord.Latitud = 40.30416667
cord.Longitud = 0.22583333

I cant see any change in the cord

Answer 1

Your Let property is not allocating correctly the value you passed as argument.
It should be as follows:

Private lon As Double
'

Public Property Let Longitud(ByVal longi As Double)

    lon = longi

End Property

Let should assign the value to your private variable (Lon) and Get should retrieve the value stored inside that variable.

Just as an addition, it will help you a lot if you give your private properties a special suffix. For example pLon and pLat. This way is easier for you to identify the variables from the arguments and properties.