//查看数据库
        private void menuItemViewDB_Click(object sender, EventArgs e)
        {
            DbObjectViewer ov = new DbObjectViewer();

            ov.CurrentDatabase = tvDatabase.SelectedNode.Tag as SODatabase;
            ov.Show(DockPanel);
        }
 //查看数据库
 private void menuItemViewDB_Click(object sender, EventArgs e)
 {
     DbObjectViewer ov = new DbObjectViewer();
     ov.CurrentDatabase = tvDatabase.SelectedNode.Tag as SODatabase;
     ov.Show(DockPanel);
 }