Update Table from Data set

Hi, Good morining every one.

I am able to insert a record but not able to update it.

I have to update the records in TANLUSR_DUP based on  USR_ID which is the P.Key in this table.

How do I write a code for the following function.

Update table TANLUSR_DUP where Data set. user_id = TANLUSR_DUP.USR_ID

Please find the code I am using.

Any help is appreciated.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using GetLDAPProfile.LDAP;

namespace GetLDAPProfile
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

            UserProfileRecord objProfile = new UserProfileRecord();

            UserProfileService usrPrSvc = new UserProfileService();

            UserProfileRequest objUPRq = new UserProfileRequest();
            UserProfileResult objUPRslt = new UserProfileResult();

            string cnStr = "Database=SA0;Server=s3b73;UID=sec;pwd=security";

            SqlConnection cn = new SqlConnection();
            cn.ConnectionString = cnStr;

            string strSQLTxt = "select usr_nr from TANLUSR_DUP where itx_usr_typ_cd is null";

            SqlDataAdapter da = new SqlDataAdapter(strSQLTxt, cn);

            DataSet ds = new DataSet();

            da.Fill(ds);

            da.SelectCommand.CommandText = "select * from TANLUSR_DUP";

            SqlCommandBuilder cmdBldr = new SqlCommandBuilder(da);

            da.MissingSchemaAction = MissingSchemaAction.AddWithKey;
            da.Fill(ds, "TANLUSR_DUP");

            foreach (DataRow row in ds.Tables[0].Rows)
            {
                objUPRq.UserID = row.ItemArray[0].ToString();
                objUPRq.IDType = "uuid";
                objUPRslt = usrPrSvc.getUserProfile(objUPRq);
                if (objUPRslt.count != 0)
                {
                    objProfile = objUPRslt.record[0];
                    Debug.WriteLine(
                        String.Format("uuid: {0,-10}\t" +
                            "Employee Number: {1,-10}\t" +
                            "Phone: {5,-11}" +
                            "Region: {2,-3}\t" +
                            "District: {3,-3}\t" +
                            "Center: {4,-8}",
                        objProfile.uuid,
                        objProfile.empid,
                        objProfile.region,
                        objProfile.district,
                        objProfile.center,
                        objProfile.telephone));

                    DataRow NewRow = ds.Tables["TANLUSR_DUP"].NewRow();

                    NewRow[0] = objProfile.uuid;
                    NewRow[1] = objProfile.empid;
                    NewRow[20] = objProfile.telephone;
                    NewRow[21] = objProfile.region;
                    NewRow[22] = objProfile.district;
                    NewRow[23] = objProfile.center;
                    NewRow[24] = objProfile.company;
                    NewRow[25] = objProfile.country;
                    NewRow[26] = objProfile.jclass;
                    NewRow[27] = objProfile.jfunction;
                    NewRow[28] = objProfile.jgroup;
                    NewRow[29] = objProfile.emptype;
                    NewRow[30] = objProfile.department;

                    ds.Tables["TANLUSR_DUP"].Rows.Add(NewRow);
                    da.Update(ds.Tables["TANLUSR_DUP"]);

                }
            
            }

        }
    }
}