Hi Stefan,
in Jabaco Version 1.5.0 unfortunately there is in fact a problem with Tabstrips, the problem is even bigger:
already instantiated usercontrol-objects get deleted if you open your project again later.
But you can see TabStrips working, because you also made a mistake:
between point 2 and point 3 you must place the usercontrol from the Tools-bar to your Form.
go this way:
1. in Formdesigner dragdrop a TabStrip on Form1.
2. in projectexplorer, for every tab Add one UserControl to your project
2.a in every Formdesigner of your usercontrols, design your tabs
2.b back agin to Formdesigner of your Form, dragdrop 1 usercontrol-object per tab from the tools-bar to your form.
3. Add the TabStrip1.Tabs.Add command to (not main module but) Form_Load
4. Start the project
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Jabaco Source
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Public Sub Form_Load()
TabStrip1.Tabs.Add(TabOptionPath1, "Path")
TabStrip1.Tabs.Add(TabOptionEdit1, "Edit")
End Sub
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Now you should see your tabstrip working
OlimilO