wpf ,tooltip的style

    <Style x:Key="MyToolTipStyle" TargetType="ToolTip">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate>
					<Border MaxWidth="600" MinHeight="16" MaxHeight="320" Padding="5,5,5,5" BorderBrush="{DynamicResource Brush_Gray_l6_FFCACACA}" Background="White" BorderThickness="1">
                    <TextBlock TextWrapping="Wrap" TextTrimming="CharacterEllipsis" Text="{TemplateBinding ContentControl.Content}"/>
					</Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

 <TextBlock Text="{Binding Content}" Grid.Row="0" Height="35" Grid.ColumnSpan="1" TextTrimming="CharacterEllipsis" Margin="0,50,0,0" HorizontalAlignment="Left" VerticalAlignment="Top">
                            <TextBlock.ToolTip>
                                <ToolTip Style="{StaticResource MyToolTipStyle}" Content="{Binding Content}" />
                            </TextBlock.ToolTip>
                        </TextBlock>