MVVM Binding for Datagrid column inside itemscontrol

Question

How to Bind Button command event for DataGrid  inside ItemsControl.

 

 I want

1.CellCommand evet for CellEditEnding 

2.AddNew command for button

 

<ItemsControl ItemsSource="{Binding ObjCollection}" >

<ItemsControl.ItemTemplate>

<DataTemplate>

<StackPanel Orientation="Vertical" Height="200">

<Label Content="{Binding Name}"/>

<DataGrid Name="dGrid" VerticalScrollBarVisibility="Auto" MaxHeight="150" ItemsSource="{Binding Dt}" HorizontalContentAlignment="Center" VerticalContentAlignment="Center">

<i:Interaction.Triggers>

<i:EventTrigger EventName="CellEditEnding">

<i:InvokeCommandAction Command="{Binding CellCommand}"/>

</i:EventTrigger>

</i:Interaction.Triggers>

<DataGrid.Columns>

<DataGridTemplateColumn DisplayIndex="15">

<DataGridTemplateColumn.CellTemplate>

<DataTemplate>

<Button Content="Add New" Command="{Binding Path=DataContext.AddNew, RelativeSource= {RelativeSource FindAncestor,

AncestorType={x:Type DataGrid}

</DataTemplate>

</DataGridTemplateColumn.CellTemplate>

</DataGridTemplateColumn>

</DataGrid.Columns>

</DataGrid>

</StackPanel>

</DataTemplate>

</ItemsControl.ItemTemplate>

</ItemsControl>