Android Question How can I work with maps values?

[Bruno Ramos]

Hello everyone, firstly I have to tell you that I'm a beginner so please, be patient.

Here is my problem, in my code, I have a map and I need to a sum with these values. Here is my code

ListaArticulos.Initialize   
    NewArt.Initialize
    NewArt.Put("nombre","Harina COLOLO 0000 1kg.")
    NewArt.Put("marca","COLOLO")
    NewArt.Put("comercio","'El Campo'")
    NewArt.Put("precio", 50)
    NewArt.Put("precio antes", 60)
    NewArt.Put("categoria","Almacén")
    NewArt.Put("unidad", 1)
    
    
Sub btn_mas_unidad_Click

        NewArt.Get("unidad") = NewArt.Get("unidad") + NewArt.Get("unidad")
    
End Sub

I need that when user click btn_mas_unidad the map "unidad" change and show in a label "2". And if the user, for instance click five times the btn, the label show "5", how can I do that?

 

[Erel]

NewArt.Put("unidad", NewArt.Get("unidad") + NewArt.Get("unidad"))

Or:

Dim unidad As Int = NewArt.Get("unidad")
unidad = unidad + unidad
NewArt.Put("unidad", unidad)

 

[cklester]

You should be adding one, since you want to click five times and show "5."

dim val as int = NewArt.Get("unidad")
val = val + 1
NewArt.Put("unidad",val)

Or, in one line:

NewArt.Put("unidad",NewArt.Get("unidad")+1)

 

[Bruno Ramos]

Thank you!