如何从记事本文本文件到datagrid标题获取值？我只想把标题不是数据

<DataGrid.Columns>
    <DataGridTextColumn Header="A" Width="150" Binding="{Binding A}"/>
    <DataGridTextColumn Header="B" Width="100" Binding="{Binding B}"/>
    <DataGridTextColumn Header="C" Width="100" Binding="{Binding C}"/>
    <DataGridTextColumn Header="D" Width="100" Binding="{Binding D}"/>
    <DataGridTextColumn Header="E" Width="100" Binding="{Binding E}"/>
    <DataGridTextColumn Header="F" Width="100" Binding="{Binding F}"/>
<DataGrid.Columns/>
<DataGrid.Columns>
    <DataGridTextColumn Head