Datagrid Header New Line

Hello,

i am binding a textbox to datagrid in xaml for filtering purpose, the code is working as expected. However i would like to move the textbox to New Line. Can someone suggest how to get textbox to new line. The snapshot of my existing datagrid header is below.

The below is my part of xaml code

<DataGridTextColumn Header="CustomerName " Width="Auto" Binding="{Binding CustomerName}" ><DataGridTextColumn.HeaderTemplate><DataTemplate><StackPanel Orientation="Horizontal"><TextBlock Text="{Binding Content,RelativeSource={RelativeSource Mode=TemplatedParent}}"/><TextBox x:Name="txtCustomerName" Width="100" TextChanged="txtCustomerName_TextChanged" /></StackPanel></DataTemplate></DataGridTextColumn.HeaderTemplate></DataGridTextColumn>