Android Question Syntax error bug

[techknight]

I would like to be able to do this, but for some reason the compiler keeps throwing a syntax error:

lblPlayer2.Text = "No player in Slot: " & PlayerIndex + 1

Probably because the +1 on the end.

See, I can do this in any other language except for this one for some reason unless I am doing it wrong? Maybe I need parenthesis? I am afraid if I put it in parenthesis that it would actually increment the variable by 1 instead of "referencing as it is plus 1"

The PlayerIndex is 0 based, and the label I want 1 based. So if PlayerIndex is 0, I want the user to see "1" hence why I put the + 1 on the end.

I really dont want to have to declare another variable and add another line of code if I dont have to.

any ideas?

 

[DonManfred]

lblPlayer2.Text = $"No player in Slot: ${PlayerIndex + 1}"$

 

[techknight]

Thanks, but can you explain what the $ is for so I can learn?

 

[DonManfred]

Thanks, but can you explain what the $ is for so I can learn?

https://www.b4x.com/android/forum/threads/b4x-smart-string-literal.50135/

 

[techknight]

That confused me mostly but I THINK I understand it.

So, Will this physically increment the variable? or it will it display a reference of the function as if the variable had 1 added to it? but the variable remain as is? Just curious.

 

[DonManfred]

Will this physically increment the variable?

no- The "Value" in ${x} just output x

Check #2 and #3 in the Tutorialthread. This should make it more clear

 

[Mahares]

Manfred is right on. You can actually test it with this:

Dim PlayerIndex As Int=3
    For i=0 To 4
        Log($"No player in Slot: ${PlayerIndex + i}"$)
        Log(PlayerIndex)  'always displays 3
    Next

 

[Jeffrey Cameron]

I believe you may also get around the syntax error simply by enclosing the computation in parenthesis:

lblPlayer2.Text = "No player in Slot: " & (PlayerIndex + 1)