Wpf, C#, telerik, radgridview, groupdescriptors

telerik, RadGridView, GroupDescriptors i have been to use 👇. But in CellEditEnded automatically change position for current using row, How Do

<telerik:RadGridView Grid.Row="2" Grid.ColumnSpan="6" Grid.RowSpan="1" x:Name="gvUnderCarrierPMS" Style="{StaticResource RadGridViewInnerColorStyle}" CellEditEnded="gvUnderCarrierPMS_CellEditEnded" RowEditEnded="gvUnderCarrierPMS_RowEditEnded"    Deleted="gvUnderCarrierPMS_Deleted" Deleting="gvInnerGrid_Deleting" FilterOperatorsLoading="gvUnderCarrierPMS_FilterOperatorsLoading" AlternationCount="0" RowIndicatorVisibility="Collapsed" AlternateRowBackground="White">

                                      <telerik:RadGridView.GroupDescriptors >
                                          <telerik:GroupDescriptor Member="Type" x:Name="SalesManGDNameB" DisplayContent="Type" >
                                          </telerik:GroupDescriptor>
                                      </telerik:RadGridView.GroupDescriptors>

                                      <telerik:RadGridView.Columns>

                                          <telerik:GridViewDataColumn Header="Sl No" IsVisible="False"
                                              HeaderTextAlignment="Center"
                                              IsFilterable="True"
                                              IsReadOnly="True"
                                              IsSortable="False"
                                              MinWidth="50" Width="50"
                                              TextAlignment="Center"
                                              DataMemberBinding="{Binding SlNo}" />

                                          <telerik:GridViewDataColumn Header="Type" IsVisible="False"
                                              HeaderTextAlignment="Center"

                                              IsFilterable="True"
                                              IsReadOnly="True"
                                              IsSortable="False"
                                              MinWidth="120" Width="120"
                                              TextAlignment="Center"
                                              DataMemberBinding="{Binding Type}" />

                                          <telerik:GridViewComboBoxColumn DataMemberBinding="{Binding VehicleCodeAndID,  Mode=TwoWay}"
                                                                              UniqueName="Type" IsFilterable="True"
                                                                              IsSortable="False" IsVisible="True"
                                                                              HeaderTextAlignment="Center"
                                                                              Header="Fleet No"  MinWidth="100" Width="110"
                                                                              SelectedValueMemberPath="VehicleCodeAndID"
                                                                              Name="Item01"

                                                                              DisplayMemberPath="VehicleID"

                                                                              IsComboBoxEditable="True">
                                              <telerik:GridViewComboBoxColumn.EditorStyle>
                                                  <Style TargetType="telerik:RadComboBox">
                                                      <Setter Property="OpenDropDownOnFocus" Value="True"/>
                                                      <Setter Property="TextSearchMode" Value="Contains"/>
                                                      <Setter Property="IsFilteringEnabled" Value="True"/>
                                                      <Setter Property="ItemsPanel">
                                                          <Setter.Value>
                                                              <ItemsPanelTemplate>
                                                                  <StackPanel/>
                                                              </ItemsPanelTemplate>
                                                          </Setter.Value>
                                                      </Setter>
                                                  </Style>
                                              </telerik:GridViewComboBoxColumn.EditorStyle>
                                          </telerik:GridViewComboBoxColumn>

                                          <telerik:GridViewDataColumn Header="Model No"
                                              HeaderTextAlignment="Center"
                                              IsVisible="True"
                                              IsFilterable="True"
                                              IsReadOnly="True"
                                              IsSortable="False"
                                              MinWidth="130" Width="130"
                                              TextAlignment="Center"
                                              DataMemberBinding="{Binding ModelNo}" />



                                          <telerik:GridViewDataColumn Header="Crane Capacity"
                                              HeaderTextAlignment="Center"
                                              IsVisible="True"
                                              IsFilterable="True"
                                              IsSortable="False"
                                              MinWidth="100" Width="100"
                                              TextAlignment="Center"
                                              DataMemberBinding="{Binding CraneCapacity}" />

                                          <telerik:GridViewDataColumn Header="Plate No"
                                              HeaderTextAlignment="Center"
                                              IsVisible="True"
                                              IsFilterable="True"
                                              IsSortable="False"
                                              MinWidth="100" Width="100"
                                              TextAlignment="Center"
                                              DataMemberBinding="{Binding PlateNo}" />


                                          <telerik:GridViewDataColumn Header="Last Service Date"
                                              HeaderTextAlignment="Center"
                                              IsVisible="True"
                                              IsFilterable="True"
                                              IsSortable="False"
                                              MinWidth="105" Width="105"
                                              TextAlignment="Center"
                                              DataMemberBinding="{Binding LastServiceDate,StringFormat=dd-MM-yyyy}" />

                                          <telerik:GridViewDataColumn Header="Last Service HMR"
                                              HeaderTextAlignment="Center"
                                              IsVisible="True"
                                              IsFilterable="True"
                                              IsSortable="False"
                                              MinWidth="108" Width="108"
                                              TextAlignment="Center"
                                              DataMemberBinding="{Binding LastServiceHMR}" />

                                          <telerik:GridViewDataColumn Header="Next Service Date"
                                              HeaderTextAlignment="Center"
                                              IsVisible="True"
                                              IsFilterable="True"
                                              IsSortable="False" IsReadOnly="True"
                                              MinWidth="110" Width="110"
                                              TextAlignment="Center"
                                              DataMemberBinding="{Binding NextServiceDate,StringFormat=dd-MM-yyyy}" />

                                          <telerik:GridViewDataColumn Header="Next Service HMR"
                                              HeaderTextAlignment="Center"
                                              IsVisible="True"
                                              IsFilterable="True"
                                              IsSortable="False" IsReadOnly="True"
                                              MinWidth="115" Width="115"
                                              TextAlignment="Center"
                                              DataMemberBinding="{Binding NextServiceHMR}" />

                                          <telerik:GridViewDataColumn Header="Recent HMR Date"
                                              HeaderTextAlignment="Center"
                                              IsVisible="True"
                                              IsFilterable="True"
                                              IsSortable="False"
                                              MinWidth="110" Width="110"
                                              TextAlignment="Center"
                                              DataMemberBinding="{Binding RecentHMRDate,StringFormat=dd-MM-yyyy}" />

                                          <telerik:GridViewDataColumn Header="Recent HMR"
                                              HeaderTextAlignment="Center"
                                              IsVisible="True"
                                              IsFilterable="True"
                                              IsSortable="False"
                                              MinWidth="90" Width="90"
                                              TextAlignment="Center"
                                              DataMemberBinding="{Binding RecentHMR}" />

                                          <telerik:GridViewDataColumn Header="Remaining Days" IsReadOnly="True"
                                              HeaderTextAlignment="Center"
                                              IsVisible="True"
                                              IsFilterable="True"
                                              IsSortable="False"
                                              MinWidth="100" Width="100"
                                              TextAlignment="Center"
                                              DataMemberBinding="{Binding RemainingDays}">

                                              <telerik:GridViewDataColumn.CellStyle>
                                                  <Style>
                                                      <Setter Property="Canvas.Background" Value="{Binding ColorA,Converter={StaticResource DateConverter2}}"></Setter>
                                                  </Style>
                                              </telerik:GridViewDataColumn.CellStyle>

                                          </telerik:GridViewDataColumn>


                                          <telerik:GridViewDataColumn Header="Remaining HMR/KM" IsReadOnly="True"
                                              HeaderTextAlignment="Center"
                                              IsVisible="True"
                                              IsFilterable="True"
                                              IsSortable="False"
                                              MinWidth="130" Width="130"
                                              TextAlignment="Center"
                                              DataMemberBinding="{Binding RemainingHMRKM }" >

                                              <telerik:GridViewDataColumn.CellStyle>
                                                  <Style>
                                                      <Setter Property="Canvas.Background" Value="{Binding ColorB,Converter={StaticResource DateConverter2}}"></Setter>
                                                  </Style>
                                              </telerik:GridViewDataColumn.CellStyle>

                                          </telerik:GridViewDataColumn>

                                          <telerik:GridViewDataColumn Header="Location"
                                              HeaderTextAlignment="Center"
                                              IsVisible="True"
                                              IsFilterable="True"
                                              IsSortable="False"
                                              MinWidth="100" Width="110"
                                              TextAlignment="Center"
                                              DataMemberBinding="{Binding Location}" />

                                          <telerik:GridViewDataColumn Header="Operator"
                                              HeaderTextAlignment="Center"
                                              IsVisible="True"
                                              IsFilterable="True"
                                              IsSortable="False"
                                              MinWidth="100" Width="110"
                                              TextAlignment="Center"
                                              DataMemberBinding="{Binding Operator}" />

                                          <telerik:GridViewDataColumn Header="Mobile"
                                              HeaderTextAlignment="Center"
                                              IsVisible="True"
                                              IsFilterable="True"
                                              IsSortable="False"
                                              MinWidth="100" Width="110"
                                              TextAlignment="Center"
                                              DataMemberBinding="{Binding Mobile}" />

                                          <telerik:GridViewDataColumn Header="Work Description"
                                              HeaderTextAlignment="Center"
                                              IsVisible="True"
                                              IsFilterable="True"
                                              IsSortable="False"
                                              MinWidth="100" Width="110"
                                              TextAlignment="Center"
                                              DataMemberBinding="{Binding WorkDescription}" />

                                          <telerik:GridViewDataColumn Header="Ass. Serv. ManPower"
                                              HeaderTextAlignment="Center"
                                              IsVisible="True"
                                              IsFilterable="True"
                                              IsSortable="False"
                                              MinWidth="100" Width="130"
                                              TextAlignment="Center"
                                              DataMemberBinding="{Binding AssighnedServiceManPower}" />

                                          <telerik:GridViewDataColumn Header="Remarks"
                                              HeaderTextAlignment="Center"
                                              IsVisible="True"
                                              IsFilterable="True"
                                              IsSortable="False"
                                              MinWidth="150" Width="150"
                                              TextAlignment="Center"
                                              DataMemberBinding="{Binding Remarks}" />

                                      </telerik:RadGridView.Columns>
                                      <telerik:StyleManager.Theme>
                                          <telerik:Windows8Theme />
                                      </telerik:StyleManager.Theme>
                                      <telerik:RadGridView.RowStyle>
                                          <Style TargetType="{x:Type telerik:GridViewRow}" >
                                              <!--<Setter Property="Background" Value="{StaticResource PinkVeryLightBrush}"/>-->
                                              <Setter Property="Background" Value="{Binding GridColur,Converter={StaticResource DateConverter}}"></Setter>
                                          </Style>
                                      </telerik:RadGridView.RowStyle>
                                  </telerik:RadGridView>