private void Cancelar_Btn_Click(object sender, EventArgs e)
        {
            Tela_Cadastro Cadastro      = new Tela_Cadastro();
            Panel         PainelCentral = new Panel();

            PainelCentral.Dock = DockStyle.Fill;
            Cadastro.TopLevel  = false;
            PainelCentral.Controls.Add(Cadastro);
            this.Controls.Add(PainelCentral);
            PainelCentral.BringToFront();
            Cadastro.Show();
            PainelCentral.Show();
        }
 private void Cadastro_btn_Click(object sender, EventArgs e)
 {
     if (Home_btn.Active)
     {
         Home_btn.selected = false; Home.Close();
     }
     if (Solicitacao_btn.Active)
     {
         Solicitacao.Close();
     }
     if (Atendimento_btn.Active)
     {
         Chat.Close();
     }
     if (!Cadastro_btn.Active)
     {
         Cadastro_btn.Active = true;
         Cadastro            = new Tela_Cadastro();
         Cadastro.TopLevel   = false;
         Cadastro.AutoScroll = true;
         this.Panel_Menus.Controls.Add(Cadastro);
         Cadastro.Show();
     }
     if (Relatorios_btn.Active)
     {
         //Relatorios.Close();
     }
     if (Abastecimento_Btn.Active)
     {
         //Abastecimento.Close();
     }
     if (SAC_btn.Active)
     {
         Sac.Close();
     }
 }