B4J Question Problem triggering event of view array [solved]

[Didier9]

I have something very similar working in B4A but this simple project in B4J shows my problem.
I must be missing something in the declaration and the click event for the checkboxes is not triggered.

#Region Project Attributes
    #MainFormWidth: 600
    #MainFormHeight: 200
#End Region

Sub Process_Globals
    Private fx As JFX
    Private MainForm As Form
    Private cb(), CheckBox1, CheckBox2, CheckBox3, CheckBox4 As CheckBox
End Sub

Sub AppStart (Form1 As Form, Args() As String)
    MainForm = Form1
    MainForm.RootPane.LoadLayout("main") 'Load the layout file.
    MainForm.Show
    cb = Array As CheckBox( CheckBox1, CheckBox2, CheckBox3, CheckBox4)
End Sub

'Return true to allow the default exceptions handler to handle the uncaught exception.
Sub Application_Error (Error As Exception, StackTrace As String) As Boolean
    Return True
End Sub

Sub cb_Click
    Dim i As Int
    Dim c As CheckBox
    c = Sender
    For i=0 To cb.Length-1
        cb(i).checked = False
    Next
    cb(c.Tag).Checked = True
End Sub

I have attached a complete project cut to the bone.

 

[Daestrum]

You need to change the event name for each Checkbox in the designer so it calls cb not CheckBox1,CheckBox2 ...

also tag refers to the next checkbox ( should be zero based )

cb(c.Tag - 1).Checked = True

 

[OliverA]

For a CheckBox, CheckChanged is the only event in B4J. See: https://www.b4x.com/b4j/help/jfx.html#checkbox

 

[Daestrum]

The class extends another b4j class so it gains action and click as events from the parent class.

 

[Didier9]

For a CheckBox, CheckChanged is the only event in B4J. See: https://www.b4x.com/b4j/help/jfx.html#checkbox

Not true.
I added this:

Sub CheckBox1_Click
    MainForm.Title = "CheckBox1 clicked"
End Sub

Sub CheckBox2_Click
    MainForm.Title = "CheckBox2 clicked"
End Sub

Sub CheckBox3_Click
    MainForm.Title = "CheckBox3 clicked"
End Sub

Sub CheckBox4_Click
    MainForm.Title = "CheckBox4 clicked"
End Sub

and that part works as expected.

 

[Didier9]

You need to change the event name for each Checkbox in the designer so it calls cb not CheckBox1,CheckBox2 ...

also tag refers to the next checkbox ( should be zero based )

cb(c.Tag - 1).Checked = True

That was exactly what was wrong with it.
Of course, the tag was off by one, it's obvious and I would have found that quickly once the first error was corrected.

Thanks a bunch!