<igGrid:ColumnLayout Key="StepParameterList" AutoGenerateColumns="false">
                                                    <igGrid:ColumnLayout.AddNewRowSettings>
                                                        <igGrid:AddNewRowSettingsOverride AllowAddNewRow="None"/>
                                                    </igGrid:ColumnLayout.AddNewRowSettings>
                                                    <igGrid:ColumnLayout.EditingSettings>
                                                        <igGrid:EditingSettingsOverride AllowEditing="Cell" IsEnterKeyEditingEnabled="True"></igGrid:EditingSettingsOverride>

                                                    </igGrid:ColumnLayout.EditingSettings>                                                    <igGrid:ColumnLayout.Columns>

<igGrid:TextColumn Key="Values"></igGrid:TextColumn>

<igGrid:TextColumn Key="ParameterComments" HeaderText="Comments" HorizontalContentAlignment="Center" />
                                                        <igGrid:TemplateColumn Key="Add">
                                                            <igGrid:TemplateColumn.ItemTemplate>
                                                                <DataTemplate>
                                                                    <Button x:Name="BtnAddParameter" Content="Add" Click="BtnAddParameter_Click"  Width="50"></Button>
                                                                </DataTemplate>
                                                            </igGrid:TemplateColumn.ItemTemplate>
                                                        </igGrid:TemplateColumn>

</igGrid:ColumnLayout.Columns>
                                                </igGrid:ColumnLayout>

I have a columnlayout in my xamwebgrid and in that I have added one textcolumn and another template column having button control in it.On the BtnAddParameter_Click event I am opening another window by

private void BtnAddParameter_Click(object sender, RoutedEventArgs e)
        {
           
            string stringValue = (string)HtmlPage.Window.Invoke("OpenNewWindow", "http://localhost:8185/Modules/Explorer/Viewer2.aspx");           
        }

which return me some value after closing that window.Now I want to update that value to my TextColumnfor the row of which I click the button.

Which event I need to use and how I update the value of textcolumn for that particular row only....

Please suggest...

Thanks in advance

-Pankaj