Could you point how to desabilitate a C# Windows Form tab page in a manner that it could't even be opened?

Hi Experts

Could you point how to desabilitate a C# Windows Form tab page in a manner that it could't even be opened?

By using this code

 // Desabilita as tab_pages
                (tbcPublicacoes.TabPages[1] as Control).Enabled = false;
                (tbcPublicacoes.TabPages[2] as Control).Enabled = false;
                (tbcPublicacoes.TabPages[3] as Control).Enabled = false;
                (tbcPublicacoes.TabPages[4] as Control).Enabled = false;

Even the control inside the tabpage is disabled, the pages could still been opened:

What I need (extracted from a VFP project)

Thanks in advance