在RowDetailsTemplate中隐藏/折叠图像

<Grid>
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="Auto"/>
        <ColumnDefinition Width="*"/>
    </Grid.ColumnDefinitions>
    <Image x:Name="img" Source="image.png" Width="50" Height="50" Grid.Column="0"/>
    <!-- 其他内容 -->
</Grid>

private bool isImageVisible;
public bool IsImageVisible
{
    get { return isImageVisible; }
    set { isImageVisible = value; OnPropertyChanged(); }
}

<Image x:Name="img" Source="image.png" Width="50" Height="50" Grid.Column="0" Visibility="{Binding IsImageVisible, Converter={StaticResource BoolToVisibilityConverter}}"/>

<Grid.Triggers>
    <EventTrigger RoutedEvent="Loaded">
        <BeginStoryboard>
            <Storyboard>
                <BooleanAnimationUsingKeyFrames Storyboard.TargetProperty="IsImageVisible">
                    <DiscreteBooleanKeyFrame KeyTime="0:0:0" Value="False"/>
                </BooleanAnimationUsingKeyFrames>
            </Storyboard>
        </BeginStoryboard>
    </EventTrigger>
</Grid.Triggers>