<DataGrid x:Name="eDataGrid" AutoGenerateColumns="False" CanUserAddRows="True" Foreground="Magenta" HorizontalAlignment="Left" Height="224" Margin="10,35,0,0" VerticalAlignment="Top" Width="489">
<DataGrid.Columns>
<DataGridTextColumn Header="I am Header A" Width="*" x:Name="ColumnA" />
<DataGridTextColumn Header="I am Header B" Width="*" x:Name="ColumnB" />
<DataGridTextColumn Header="I am Header C" Width="*" x:Name="ColumnC" />
</DataGrid.Columns>
</DataGrid>