微软行为类

引用命名空间：

 xmlns:i="http://schemas.microsoft.com/xaml/behaviors"

通过行为类，可以为控件添加触发器

 

<ScrollViewer Grid.Row="1">
                    <ItemsControl  ItemsSource="{Binding ToDoDtos}"
                      HorizontalAlignment="Center">
                        <ItemsControl.ItemsPanel>
                            <ItemsPanelTemplate>
                                <WrapPanel/>
                            </ItemsPanelTemplate>
                        </ItemsControl.ItemsPanel>
                        <ItemsControl.ItemTemplate>
                            <DataTemplate>
                                <md:TransitioningContent OpeningEffect="{md:TransitionEffect Kind=ExpandIn}">
                                    <Grid Margin="8"  Width="220" MinHeight="180" MaxHeight="250">
                                        <!--微软行为事件，事件名：MouseLeftButtonUp 控件名：ItemsControl-->
                                        <i:Interaction.Triggers>
                                            <i:EventTrigger EventName="MouseLeftButtonUp">
                                                <i:InvokeCommandAction
                                                    CommandParameter="{Binding }"
                                                    Command="{Binding DataContext.SelectedCommand, RelativeSource={RelativeSource Mode=FindAncestor,AncestorType=ItemsControl}}"/>
                                            </i:EventTrigger>
                                        </i:Interaction.Triggers>
                                        <Grid.RowDefinitions>
                                            <RowDefinition Height="auto"/>
                                            <RowDefinition/>
                                        </Grid.RowDefinitions>
                                        <md:PopupBox HorizontalAlignment="Right" Panel.ZIndex="1">
                                            <Button Content="删除"/>
                                        </md:PopupBox>
                                        <Border CornerRadius="3" Grid.RowSpan="2" Background="Green"/>
                                        <TextBlock  FontWeight="Bold" Padding="10,5" Text="{Binding Title}"/>
                                        <TextBlock Padding="10,5"  Text="{Binding Content}" Grid.Row="1"/>
                                        <Canvas Grid.RowSpan="2" ClipToBounds="True">
                                            <Border CornerRadius="100" Canvas.Top="10" Canvas.Right="-50" Width="120" Height="120" Background="#FFFFFF" Opacity="0.1"/>
                                            <Border CornerRadius="100" Canvas.Top="80" Canvas.Right="-30" Width="120" Height="120" Background="#FFFFFF" Opacity="0.2"/>
                                        </Canvas>
                                    </Grid>
                                </md:TransitioningContent>
                            </DataTemplate>
                        </ItemsControl.ItemTemplate>
                    </ItemsControl>

                </ScrollViewer>