private void TsbNewClick(object sender, EventArgs e)
        {
            using (DataSourceCfg dscfg = new DataSourceCfg())
            {
                if (dscfg.ShowDialog() == DialogResult.OK)
                {
                    DataRowView drvw = _bsDataSource.AddNew() as DataRowView;
                    drvw["Alias"] = dscfg.textBoxAlias.Text;
                    drvw["Dsn"]   = dscfg.cbxDsn.SelectedItem.ToString();
                    drvw["Uid"]   = dscfg.txbUid.Text;
                    drvw["Pwd"]   = dscfg.txbPwd.Text;

                    _bsDataSource.EndEdit();
                    _tbDataSource.AcceptChanges();
                }
            }
        }
		private void TsbNewClick(object sender, EventArgs e)
		{
			using (DataSourceCfg dscfg = new DataSourceCfg())
			{
				if (dscfg.ShowDialog() == DialogResult.OK)
				{
					DataRowView drvw = _bsDataSource.AddNew() as DataRowView;
					drvw["Alias"] = dscfg.textBoxAlias.Text;
					drvw["Dsn"] = dscfg.cbxDsn.SelectedItem.ToString();
					drvw["Uid"] = dscfg.txbUid.Text;
					drvw["Pwd"] = dscfg.txbPwd.Text;
					
					_bsDataSource.EndEdit();
					_tbDataSource.AcceptChanges();
				}
			}
		}