WPF，通过修改dataGrid的cell的style，改变选中行失去焦点时的颜色 4.0可用

        Style  TargetType="{x:Type DataGridCell}">
            Style.Triggers>
                Trigger  Property="IsSelected" Value="true">
                    Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
                    Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}" />
                    Setter Property="BorderBrush" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
                Trigger>
                MultiDataTrigger>
                    MultiDataTrigger.Conditions>
                        Condition Binding="{Binding IsSelected, RelativeSource={RelativeSource Self}}" Value="True" />
                        Condition Binding="{Binding IsKeyboardFocusWithin, RelativeSource={RelativeSource AncestorType={x:Type DataGrid}, Mode=FindAncestor}}" Value="False" />
                    MultiDataTrigger.Conditions>
                    Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
                    Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}" />
                    Setter Property="BorderBrush" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
                MultiDataTrigger>
            Style.Triggers>
        Style>