B4J Question multiple istances of same form

[cirollo]

Hi to everyone!

After using B4A and B4I I've decided to start using B4J for my desktop app.

My question is:

how can I open the same form more than one time (for example calling it from a menu)?

Windows behaviour on my VFP app let me to open the same form (for example, invoices) more than one time and to minimize/maximize them or passing from one to another by clicking the form itself.

is possible in B4j?

regards,

Ciro

 

[Erel]

is possible in B4j?

Yes. Implement the form in a class and then you can create as many instances of this class as you need.

 

[cirollo]

Yes. Implement the form in a class and then you can create as many instances of this class as you need.

ok, and please Erel....where I can find an example?

thanks

 

[Erel]

Create a class named MyForm with this code:

Sub Class_Globals
   Private fx As JFX
   Private form1 As Form
End Sub

Public Sub Initialize
   form1.Initialize("form1", 500, 500)
   form1.Title = "form1"
End Sub

Public Sub Show
   form1.Show
End Sub

In your main module put this code:

Sub Process_Globals
   Private fx As JFX
   Private MainForm As Form
End Sub

Sub AppStart (Form1 As Form, Args() As String)
   MainForm = Form1
   MainForm.Show
   For i = 1 To 5
     Dim mf As MyForm
     mf.Initialize
     mf.Show
   Next
End Sub

Run it and you will see one main form and 5 MyForms.