Using property and foreach write a class

Hello, I have an asp.net gridview update method for updating a table. It works well. But I felt the code structure is not optimal and kind of ugly.
Could you please help me to reconsider the code? Maybe a tiered structure is better. Thanks.

string strCon =DataAccess.conn;

Select all Open in new window

public class DataAccess
    {
        public static string conn = ConfigurationManager.ConnectionStrings["MyConnectionString"].ConnectionString;

Select all Open in new window

This part to be rewritten:

protected void GridView1_RowUpdating(object sender,GridViewUpdateEventArgs e)
        {
            SqlConnection con = new SqlConnection(strCon);
            con.Open();
            SqlCommand cmd = new SqlCommand();
            cmd.Connection = con;
            cmd.CommandText ="UPDATE Problem SET ProbDesc = @ProbDesc, ICD = @ICD, CPT = @CPT WHERE (ProbId = @ProbId)";
            if (e.NewValues["ProbDesc"] == null)
                cmd.Parameters.AddWithValue("@ProbDesc", DBNull.Value);
            else
                cmd.Parameters.AddWithValue("@ProbDesc", e.NewValues["ProbDesc"]);
            if (e.NewValues["ICD"] == null)
                cmd.Parameters.AddWithValue("@ICD", DBNull.Value);
            else
                cmd.Parameters.AddWithValue("@ICD", e.NewValues["ICD"]);
            if (e.NewValues["CPT"] == null)
                cmd.Parameters.AddWithValue("@CPT", DBNull.Value);
            else
                cmd.Parameters.AddWithValue("@CPT", e.NewValues["CPT"]);
                      cmd.ExecuteNonQuery();
            con.Close();
        }

Select all Open in new window

There are a lot of parameters are omitted, can we use property and foreach something like?