} }
（显示）
private void XS_Click(object sender, EventArgs e)
{ //显示
SqlConnection cnn = new SqlConnection(); cnn.ConnectionString = cnntxt.Text; DataSet ds = new DataSet(); string sqlstr = sqltxt.Text;
SqlDataAdapter da = new SqlDataAdapter(sqlstr, cnn); da.Fill(ds, \);
dgw.DataSource = ds.Tables[\]; }