Disable button.

a!localVariables(
  local!btnSelected,
  {
    a!buttonArrayLayout(
      buttons: {
        a!buttonWidget(
          icon: "check",
          size: "LARGE",
          style: "DESTRUCTIVE",
          saveInto: { a!save(local!btnSelected, 1) },
          disabled: contains({ 2, 3 }, tointeger(local!btnSelected))
        ),
        a!buttonWidget(
          icon: "check",
          size: "LARGE",
          style: "DESTRUCTIVE",
          saveInto: { a!save(local!btnSelected, 2) },
          disabled: contains({ 1, 3 }, tointeger(local!btnSelected))
        ),
        a!buttonWidget(
          icon: "check",
          size: "LARGE",
          style: "DESTRUCTIVE",
          saveInto: { a!save(local!btnSelected, 3) },
          disabled: contains({ 2, 1 }, tointeger(local!btnSelected))
        )
      },
      align: "CENTER"
    )
  }
)

Please try this code. I save the value for each button as 1,2 and 3 and according to these values i set the disability logic for the buttons.

It works, but just disabled the button number one and it doesn't let me choose another one.

The 3 buttons must be enabled.

I made a few changes on the code, I created 7 local variables because I have 24 buttons and every row is different

Thank you a lot,

Yes, Based on the requirement we can change the disable condition.

You can also use a!map instead of so many local variables. That would also give you control on which index of map you want to work on if you are building this grid dynamically. 

You can also use a!map instead of so many local variables. That would also give you control on which index of map you want to work on if you are building this grid dynamically.