B4J Question [BANano] [SOLVED] How to "Throw Exception" when creating libraries

[Mashiane]

Ola

Is it possible to "Throw An Exception" via code?

There are some terms and conditions in my library that I would like to Throw an exception when they are not met?

Thanks

TheMash

 

[alwaysbusy]

From the BANano documentation on http://gorgeousapps.com/banhelp.html

• Throw (error As Object)
  The throw statement allows you to create a custom error.
  
  Technically you can throw an exception (throw an error).
  
  e.g. BANano.Throw("This number is not valid")
  BANano.Throw(500)

A full example is with the extra BANano.Finally keyword (because the try - catch in B4J does not have that statement, but is often handy)

    Dim num As Int = 10
    Dim divider As Int = 0
    Try
        If divider = 0 Then
            BANano.Throw("You can not divide by 0!")
        Else
            Log(num/divider)
        End If
    Catch
        Log(LastException)
        ' will still do the Finally part, but not the "After the Try" log.
        Return
    BANano.Finally 'ignore
        Log("Always doing this")
    End Try

    Log("After the Try")

Alwaysbusy