private void tsmiOpen_Click(object sender, EventArgs e)
        {
            frmDFileDialog openfileDlg = new frmDFileDialog(false);

            //openfileDlg.Multiselect = false;
            //openfileDlg.InitialDirectory = Application.StartupPath + "\\MapGis\\MapConfigFiles";
            //openfileDlg.Filter = "三恒科技图形系统文件|*.shz";
            if (openfileDlg.ShowDialog() == DialogResult.OK)
            {
                pnlInOut.Visible = true;
                if (!IsOut)
                {
                    this.picInOut_Click(this, new EventArgs());
                }
                if (dpicbll.ExitsFileName(openfileDlg.SafeFileName))
                {
                    DataTable   bufferdt    = dpicbll.GetXmlByFileName(openfileDlg.SafeFileName);
                    byte[]      xmlbytes    = (byte[])bufferdt.Rows[0][0];
                    FileChanger filechanger = new FileChanger();
                    ConfigXml = filechanger.BytesToXml(xmlbytes);
                    LoadMapConfig(filechanger.BytesToXml(xmlbytes));
                    this.isSaveed = false;
                }
                else
                {
                    MessageBox.Show("您所选择的文件不存在!", "提示", MessageBoxButtons.OK);
                }
            }
        }