WPF datagrid 使用DataGridTemplateColumn嵌套combox,点击单元格边框线是黑色加粗，怎么去掉？

    <!--单元格样式触发-->
    <Style TargetType="DataGridCell">
        <Setter Property="FocusVisualStyle" Value="{x:Null}" />
        <Setter Property="Background" Value="White"/>
        <Style.Triggers>                
            <Trigger Property="IsEditing" Value="True">
                <Setter Property="Foreground" Value="Black"/>
                <Setter Property="Background" Value="White"/>
                <Setter Property="FocusVisualStyle" Value="{x:Null}" />
                <Setter Property="BorderBrush" Value="White" />
                <Setter Property="BorderThickness" Value="0" />
            </Trigger>
            <Trigger Property="IsSelected" Value="True">
                <Setter Property="Foreground" Value="Black"/>
                <Setter Property="Background" Value="White"/>
                <Setter Property="FocusVisualStyle" Value="{x:Null}" />
                <Setter Property="BorderBrush" Value="White" />
                <Setter Property="BorderThickness" Value="0" />
            </Trigger>
            <Trigger Property="IsFocused" Value="True">
                <Setter Property="Foreground" Value="Black"/>
                <Setter Property="Background" Value="White"/>
                <Setter Property="FocusVisualStyle" Value="{x:Null}" />
                <Setter Property="BorderBrush" Value="White" />
                <Setter Property="BorderThickness" Value="0" />
            </Trigger>
        </Style.Triggers>
    </Style>

设置了单元格的边框，点击是边框线仍然是黑色

• 这个问题的回答你可以参考下: https://ask.csdn.net/questions/7482876