Q:

How can I for each row in DataGrid generate checkbox or whatever just to select a multiple rows?

I'm working on small WPF app, I'm fetching data from a database and it looks like this:
public List<BillItemInSerie> GetSerialNumbers(BillItemsTemp stavka)
{
    List<BillItemInSerie> serialNumbers = new List<BillItemInSerie>();

    //serialNumbers = Controller.GetSerialFromDatabase();  // this is currently not working because I don't have any data in db

    for(int i = 0;i<10;i++)
    {
        BillItemInSerie serialNumber = new BillItemInSerie();
        serialNumber.ArticleId = i;
        serialNumber.ExpireDate = DateTime.Now;
        serialNumber.Lot = "Warehouse" + " " + i;
        serialNumber.Serial = "135" + DateTime.Now.Minute.ToString() + "/x";
        serialNumbers.Add(serialNumber);
    }

    dtgSerialNumbers.ItemsSource = serialNumbers;
    return serialNumbers;
}

As you can see I'm actually not getting it from a db because I don't have any rows in my tables, so I created by myself 10 objects to work with.
Here is my XAML:
<DataGrid Name="dtgSerialNumbers" SelectionUnit="FullRow" EnableColumnVirtualization = "True" EnableRowVirtualization ="True"  MaxWidth="4000" MaxHeight="2000" Background="White" Margin="5,5,5,0" AutoGenerateColumns="False" RowHeaderWidth="0"  HorizontalGridLinesBrush="#0091EA" VerticalGridLinesBrush="#0091EA" CanUserAddRows="False" RowHeight="35" Grid.ColumnSpan="2" Grid.Row="2">
    <DataGrid.CellStyle>
        <StaticResource ResourceKey="DataGridCentering"/>
    </DataGrid.CellStyle>
    <DataGrid.Resources>
        <Style TargetType="{x:Type DataGridColumnHeader}">
            <Setter Property="Background" Value="Black"/>
            <Setter Property="Opacity" Value="1"/>
            <Setter Property="Foreground" Value="White"/>
            <Setter Property="HorizontalContentAlignment" Value="Center" />
            <Setter Property="FontSize" Value="{x:Static local:Globals.dataGridfontSizeHeader}"/>
            <Setter Property="FontFamily" Value="Arial"/>
            <Setter Property="Height" Value="40"/>
        </Style>
        <SolidColorBrush x:Key="{x:Static SystemColors.HighlightBrushKey}" 
           Color="LightBlue"/>
    </DataGrid.Resources>
    <DataGrid.Columns>
        <DataGridTextColumn         Binding="{Binding Serial}"      Header="Serial"     Foreground="Black"      FontSize="15"   FontFamily="Verdana" Width="20*"  />
        <DataGridTextColumn         Binding="{Binding Lot}"         Header="Desc."      Foreground="Black"      FontSize="15"   FontFamily="Verdana" Width="40*"   />
        <DataGridTextColumn         Binding="{Binding ExpireDate, StringFormat ={}{0:dd.MM.yyyy HH:mm:ss}}"     FontSize="15"   Header="Date"   FontFamily="Verdana" Foreground="Black" Width="25*" />
        <DataGridTextColumn         Binding="{Binding IsSelected}"  Header="Select"     Foreground="Black"      FontSize="15"   FontFamily="Verdana" Width="15*" />
    </DataGrid.Columns>
</DataGrid>

Now I'm wondering how can I select corresponding ROWS, maybe somehow generate checkboxes next to each row and select a row by that?
Thanks 
EDIT:
After suggestions I've changed column to <DataGridCheckBoxColumn> instead of DataGridTextColumn and I've wrote this:
foreach (BillItemInSerie item in dtgSerialNumbers.ItemsSource)
            {
                if (((CheckBox)colSelektiraj.GetCellContent(item)).IsChecked == true)
                {
                    MessageBox.Show(item.Lot.ToString());
                }
            }

It's basically for each selected row get value..
I'm not sure if this is right approach but I think it works.

A:

You could set the SelectionMode property of the DataGrid to Extended and add a DataGridTemplateColumn:
<DataGrid Name="dtgSerialNumbers" SelectionUnit="FullRow" SelectionMode="Extended" ...>
    <DataGrid.Columns>
        ...
        <DataGridTemplateColumn Header="Select">
            <DataGridTemplateColumn.CellTemplate>
                <DataTemplate>
                    <CheckBox IsChecked="{Binding IsSelected, RelativeSource={RelativeSource AncestorType=DataGridRow}, Mode=TwoWay}" IsHitTestVisible="False" />
                </DataTemplate>
            </DataGridTemplateColumn.CellTemplate>
        </DataGridTemplateColumn>
    </DataGrid.Columns>
</DataGrid>

Then you should be able to select several rows by pressing the CTRL and click.

