遍歷DataSet數據集中的記錄並修改

DataSet2 ds = new DataSet2();
SqlDataAdapter da1 = new SqlDataAdapter(str, conn);
da1.Fill(ds, "table");  //已經裝載到DataSet數據集中了   

for (int k = 0; k < ds.Tables["table"].Rows.Count; k++)
                {
                    for (int j = 0; j < ds.Tables["table"].Columns.Count; j++)
                    {

                        if (ds.Tables["table"].Rows[k]["emergency"].ToString().Trim() == "1")
                        {

                            ds.Tables["table"].Rows[k]["emergency"] = "合格";
                        }
                        else if (ds.Tables["table"].Rows[k]["emergency"].ToString().Trim() == "0")
                        {
                            //emergency = "處置";
                            ds.Tables["table"].Rows[k]["emergency"] = "處置";

                        }
                    }
                } 

ds.AcceptChanges();