How to bind a datagrid button using mvvm?

Question

I have a datagrid & column contains a button. I would like to call a method in ViewModel on button click event.

 

<DataGrid x:Name="dgvEmp" HorizontalAlignment="Left" Height="120" Margin="10,10,0,0" VerticalAlignment="Top" Width="530"

CanUserAddRows="False" AutoGenerateColumns="False" ItemsSource="{Binding Employees}"

Style="{StaticResource styleDataGrid}">

<DataGrid.Columns>

<DataGridTextColumn Header="ID" Binding="{Binding ID}" Width="110*"/>

<DataGridTextColumn Header="Name" Binding="{Binding Name}" Width="110*"/>

<DataGridTextColumn Header="Address" Binding="{Binding Address}" Width="110*"/>

<DataGridTemplateColumn Width="110*">

<DataGridTemplateColumn.CellTemplate>

<DataTemplate>

<Button Width="110"

Content="{Binding Path=ConnectionStatus}"

Command="{Binding  UpdateDetailsCommand, RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}"

CommandParameter="{Binding Path=MACAddress}">

</Button>

</DataTemplate>

</DataGridTemplateColumn.CellTemplate>

</DataGridTemplateColumn>

</DataGrid.Columns>

</DataGrid>