How to edit a column in SfDataGrid?

<?xml version="1.0" encoding="utf-8" ?>

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"

             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"

             xmlns:sfgrid="clr-namespace:Syncfusion.SfDataGrid.XForms;

                                                assembly=Syncfusion.SfDataGrid.XForms"

             xmlns:local ="clr-namespace:Edit;assembly=Edit">

  <ContentPage.BindingContext>

   <local:ViewModel x:Name="viewModel" />

  </ContentPage.BindingContext>

  <sfgrid:SfDataGrid x:Name="dataGrid"

                     ColumnSizer="Star"

                     ItemsSource="{Binding Info}">

   <sfgrid:SfDataGrid.Columns x:TypeArguments="sfgrid:Columns">

     <sfgrid:GridTextColumn MappingName="ID"/>

     //Creation of template column

     <sfgrid:GridTemplateColumn MappingName="Name">

        <sfgrid:GridTemplateColumn.CellTemplate>

         <DataTemplate>

           <Entry x:Name="label" Text="{Binding Name}" TextColor="Black"

                   HorizontalOptions="Center" VerticalOptions="Center" />

         </DataTemplate>

        </sfgrid:GridTemplateColumn.CellTemplate>

     </sfgrid:GridTemplateColumn>

   <sfgrid:GridTextColumn MappingName="Percentage"/>

     <sfgrid:GridTextColumn MappingName="Result"/>

     <sfgrid:GridTextColumn MappingName="Remarks"/>

   </sfgrid:SfDataGrid.Columns>

   </sfgrid:SfDataGrid>

</ContentPage>