Bindingnavigator opdatere ikke textbox

Hej

Jeg har nedenstående kode. Bindingnavigatoren skifter mellem posterne, men textbox opdateres ikke med ny værdi

OracleConnection conn = new OracleConnection(c);  // C#       
                conn.Open();
                cmd = new OracleCommand();
                cmd.Connection = conn;
                cmd.CommandType = CommandType.StoredProcedure;
                cmd.CommandText = storedProcedureName;

                cmd.Parameters.Add(new OracleParameter("ORDERDATA", Oracle.DataAccess.Client.OracleDbType.RefCursor)).Direction = ParameterDirection.Output;
                OracleDataReader dataReader = cmd.ExecuteReader();

                OracleDataAdapter dataa = new OracleDataAdapter(cmd);
                int i = dataa.Fill(this.ds);
               
                dataReader.Close();
                this.dataTable1BindingSource.DataSource = this.ds;



                this.dataTable1BindingSource.DataMember = this.ds.Tables[0].ToString();

              this.textBox1.DataBindings.Add( new Binding("TEXT", this.dataTable1BindingSource.DataSource, "Table.ORDER_ORDER_NO",true));
              this.textBox1.DataBindings[0].ControlUpdateMode = ControlUpdateMode.OnPropertyChanged;                                         
             
                this.textBox2.DataBindings.Add(new Binding("TEXT", this.dataTable1BindingSource.DataSource, "Table.ORDER_ORDER_ID", true));
              this.textBox2.DataBindings[0].ControlUpdateMode = ControlUpdateMode.OnPropertyChanged;

              this.textBox3.DataBindings.Add(new Binding("TEXT", this.dataTable1BindingSource.DataSource, "Table.ORDER_ORDER_SUPPLIER_ID_SET", true));
              this.textBox3.DataBindings[0].ControlUpdateMode = ControlUpdateMode.OnPropertyChanged;

              this.textBox4.DataBindings.Add(new Binding("TEXT", this.dataTable1BindingSource.DataSource, "Table.ORDER_ORDER_CREATEDDATE", true));
              this.textBox4.DataBindings[0].ControlUpdateMode = ControlUpdateMode.OnPropertyChanged;

               
              this.textBox5.DataBindings.Add(new Binding("TEXT", this.dataTable1BindingSource.DataSource, "Table.ORDER_ORDER_HOST", true));
              this.textBox5.DataBindings[0].ControlUpdateMode = ControlUpdateMode.OnPropertyChanged;


              this.textBox6.DataBindings.Add(new Binding("TEXT", this.dataTable1BindingSource.DataSource, "Table.ORDER_ORDER_MODIFIEDDATE", true));
              this.textBox6.DataBindings[0].ControlUpdateMode = ControlUpdateMode.OnPropertyChanged;