private void buttonCancel_Click(object sender, EventArgs e)
        {
            // 如果取消的话,将备份的拷贝回来
            if (m_Feature != null)
            {
                if (CtrlPolylineSpaceInfo.m_style != null && CtrlPolylineSpaceInfo.m_oldStyle != null)
                {
                    try
                    {
                        CtrlPolylineSpaceInfo.m_style.Copy(CtrlPolylineSpaceInfo.m_oldStyle);
                    }
                    catch (Exception ex)
                    {
                        Log.PublishTxt(ex);
                        MessageBox.Show(ex.Message);
                    }
                    // 标记并未修改
                    CtrlPolylineSpaceInfo.m_style.SetModified(false);
                }

                bool bHighLight = m_Feature.HighLight;
                m_Feature.Copy(m_OldFeture);
                // 高亮可能在设置的时候取消了,所以高亮状态需要恢复一下
                m_Feature.HighLight = bHighLight;
                m_GlobeControl.Refresh();
            }
            this.Close();
        }