private void btn_Ok_Click(object sender, EventArgs e)
 {
     if (txt_ProjectName.Text != "" && lbox_SelectedEmployees.Items.Count != 0)
     {
         ICommands icommands = (ICommands)commands;
         ProjectID = icommands.AddProject(txt_ProjectName.Text, ProjectID);
         foreach (var item in lbox_SelectedEmployees.Items)
         {
             EmployeesID = icommands.EmployeesID(item.ToString(), EmployeesID);
             EmployeesId.Add(EmployeesID);
         }
         foreach (var item in EmployeesId)
         {
             icommands.AddProjectEmployees(item, ProjectID);
         }
         Transition = true;
         ButtonName = txt_ProjectName.Text;
         this.Close();
     }
 }