求完整答案，不要有语法错误，急

没建数据库，截图为模拟填充的，帮助到你能点个采纳吗，谢谢~~

private void Form1_Load(object sender, EventArgs e)
        {
            try {
                string strConnection = ConfigurationSettings.AppSettings["cn"];
                SqlConnection conn = new SqlConnection(strConnection);
                SqlDataAdapter da = new SqlDataAdapter("select * from stationinfo", conn);
                DataTable dt = new DataTable();
                da.Fill(dt);
                dataGridView1.DataSource = dt;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }