Question

任何人都可以帮助我在打开和关闭时动画WPF DataGrid行详细信息（例如，当选择行时幻灯片像手风琴一样打开，当未选择行时幻灯片关闭）？我需要一个简单的概念证明。

提前感谢您的帮助：）

Answer 1

详细但有效：

<DataGrid.RowStyle>
    <Style TargetType="{x:Type DataGridRow}">
        <Setter Property="DetailsVisibility" Value="Collapsed"/>
        <Style.Triggers>
            <Trigger Property="IsSelected" Value="True">
                <Trigger.EnterActions>
                    <BeginStoryboard>
                        <Storyboard>
                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="DetailsVisibility">
                                <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{x:Static Visibility.Visible}"/>
                            </ObjectAnimationUsingKeyFrames>
                        </Storyboard>
                    </BeginStoryboard>
                </Trigger.EnterActions>
                <Trigger.ExitActions>
                    <BeginStoryboard>
                        <Storyboard>
                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="DetailsVisibility">
                                <DiscreteObjectKeyFrame KeyTime="0:0:0.4"  Value="{x:Static Visibility.Collapsed}"/>
                            </ObjectAnimationUsingKeyFrames>
                        </Storyboard>
                    </BeginStoryboard>
                </Trigger.ExitActions>
            </Trigger>
        </Style.Triggers>
    </Style>
</DataGrid.RowStyle>
<DataGrid.RowDetailsTemplate>
    <DataTemplate>
        <Grid>
            <Grid.LayoutTransform>
                <ScaleTransform ScaleY="0"/>
            </Grid.LayoutTransform>
            <Grid.Style>
                <Style TargetType="Grid">
                    <Style.Triggers>
                        <DataTrigger Binding="{Binding IsSelected, RelativeSource={RelativeSource AncestorType=DataGridRow}}"
                                     Value="True">
                            <DataTrigger.EnterActions>
                                <BeginStoryboard>
                                    <Storyboard>
                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="LayoutTransform.ScaleY">
                                            <EasingDoubleKeyFrame KeyTime="0:0:0.4" Value="1">
                                                <EasingDoubleKeyFrame.EasingFunction>
                                                    <CubicEase EasingMode="EaseInOut" />
                                                </EasingDoubleKeyFrame.EasingFunction>
                                            </EasingDoubleKeyFrame>
                                        </DoubleAnimationUsingKeyFrames>
                                    </Storyboard>
                                </BeginStoryboard>
                            </DataTrigger.EnterActions>
                            <DataTrigger.ExitActions>
                                <BeginStoryboard>
                                    <Storyboard>
                                        <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="LayoutTransform.ScaleY">
                                            <EasingDoubleKeyFrame KeyTime="0:0:0.4" Value="0">
                                                <EasingDoubleKeyFrame.EasingFunction>
                                                    <CubicEase EasingMode="EaseInOut" />
                                                </EasingDoubleKeyFrame.EasingFunction>
                                            </EasingDoubleKeyFrame>
                                        </DoubleAnimationUsingKeyFrames>
                                    </Storyboard>
                                </BeginStoryboard>
                            </DataTrigger.ExitActions>
                        </DataTrigger>
                    </Style.Triggers>
                </Style>
            </Grid.Style>
            <Grid.Children>
                <TextBlock Text="Lorem ipsum dolor sit"/>
            </Grid.Children>
        </Grid>
    </DataTemplate>
</DataGrid.RowDetailsTemplate>

修改：通过DetailsVisibility手动处理RowStyle，返回动画现在也可以。

请注意，一旦细节折叠，DataGrid的高度不会缩回，这可能有点问题。这是VirtualizingStackPanel的一个已知问题，如果你能负担得起，可以将DataGrid.ItemsPanel更改为正常的StackPanel（如果你有大量数据，这将大大减慢应用程序，因为每行都会立即创建，即使不可见）。

另外：按 Ctrl + A 非常有趣。

动画WPF DataGrid行详细信息

1 个答案: