<Style TargetType="{x:Type DataGrid}">
<Setter Property="RowHeaderWidth" Value="0"></Setter> <!--去掉第一列空白-->
<Setter Property="GridLinesVisibility" Value="None"></Setter> <!--去掉网格线-->
<Setter Property="ColumnHeaderHeight" Value="0"></Setter> <!--把列头去掉-->
</Style>
<DataGrid.Resources>
<Style TargetType="{x:Type DataGrid}">
<Setter Property="RowHeaderWidth" Value="0"></Setter>
<Setter Property="GridLinesVisibility" Value="None"></Setter>
<Setter Property="ColumnHeaderHeight" Value="0"></Setter>
</Style>
</DataGrid.Resources>