根据数据库中的值循环遍历一组datagridview列

Question

我目前有一个Datagridview，它可以从数据库中提取所有信息，并根据列的值和今天的日期之间的差异来获取行的颜色。它遍历网格并相应地为每行着色。我的问题是，当我希望它比较该特定行的下一步时，它为每一行比较同一列。它从数据库中获取当前作为int的位置，似乎正在获取第一行的位置并将其应用于所有行。

https://philipwalton.github.io/solved-by-flexbox/demos/vertical-centering/

这是我当前的代码：

private void seasonViewer_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
    {
        int x = 0;
        string conString = "Host = xxxxx; Database = xxxx; username = xxxxx; password = xxxxx; Connection Timeout=15 ";
        string query = "SELECT * FROM hamInfo;";

        MySqlConnection conDatabase = new MySqlConnection(conString);
        MySqlCommand cmdDatabase = new MySqlCommand(query, conDatabase);

        try
        {
            conDatabase.Open();
            MySqlDataReader myReader;
            myReader = cmdDatabase.ExecuteReader();



                    while (myReader.Read())
                    {


                        x = myReader.GetInt32("location");

                        if (x <= 2)
                        {
                            x = 4;
                        }
                        else
                        {
                            x++;
                        }
                    }

            }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message);
        }

        conDatabase.Dispose();
        conDatabase.Close();


        if (reportPickerBox.SelectedIndex == 0)
        {

            foreach (DataGridViewRow dr in seasonViewer.Rows)

            {


                if (dr.Cells[x].Value.ToString() != "")

                {

                    DateTime date = DateTime.Now.Date;

                    DateTime nextStep = ((DateTime)dr.Cells[x].Value);

                    TimeSpan daysLeft = nextStep - date;

                    if (daysLeft.Days <= 2)

                    {

                        dr.DefaultCellStyle.BackColor = Color.DarkRed;

                    }
                    else if (daysLeft.Days <= 4 && daysLeft.Days >= 3)
                    {
                        dr.DefaultCellStyle.BackColor = Color.DarkGoldenrod;
                    }
                    else
                        dr.DefaultCellStyle.BackColor = Color.LightGreen;

                }

            }
         }
      }