Dim pv As WinForm.PictureViewer = e.Form.Controls("PictureViewer" & i)
pv.AddCommand.Visible = True ' :增加
pv.DeleteCommand .Visible = True ':删除
pv.ClearCommand.Visible = False ':清除
pv.OpenCommand.Visible = False ':打开
pv.FullViewCommand.Visible = True ':全屏
pv.ManagerCommand.Visible = False ' :管理
pv.SaveAsCommand.Visible = True ' :另存
pv.StretchCommand.Visible = False ' :缩放
pv.UpdateCommand.Visible = True ':更新
pv.ConnectCommand.Visible = False ':重连