C# 已选择WPF如何检测listviewitem

我的ListView控件有DataTemplate，它包含几个文本块和一个按钮。我希望按钮仅在选中项目时可见。 以下是我的数据模板代码：

<ListView.ItemTemplate>
                            <DataTemplate>
                                <Grid Background="AliceBlue">
                                    <Grid.ColumnDefinitions>
                                        <ColumnDefinition Width="300" />
                                        <ColumnDefinition Width="*" />
                                        <ColumnDefinition Width="90" />
                                    </Grid.ColumnDefinitions>

                                    <TextBlock HorizontalAlignment="Left" Margin="10,0,10,0" 
                                           VerticalAlignment="Center" FontFamily="Verdana" FontSize="16" 
                                           FontWeight="Black" Grid.Column="0" Text="{Binding name}"/>

                                    <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Grid.Column="1">
                                        <TextBlock FontFamily="Verdana" FontSize="10" Grid.Column="1"
                                           VerticalAlignment="Center" HorizontalAlignment="Center"
                                           Text="Number of Chapters: " />
                                        <TextBlock FontFamily="Verdana" FontSize="12" Grid.Column="1"
                                           VerticalAlignment="Center" HorizontalAlignment="Center"
                                           Text="{Binding chaptersCount}" />
                                    </StackPanel>

                                    <Button HorizontalAlignment="Center" Height="50" Width="80" Content="Read" 
                                        Grid.Column="2" Visibility="Hidden" Click="Button_Click_3" Name="ReadButton"/>

                                </Grid>
                            </DataTemplate>
                        </ListView.ItemTemplate>

---

我该怎么做？

您需要稍微更改按钮：一种快速的XAML方法是在其

可见性上添加
触发器
，使其在未选中时隐藏（注意：此处编写的代码，希望没有输入错误）：

您可以使用DataTemplate中的
DataTrigger来实现这一点，它将检查模板化父级的
IsSelected属性：

<ListView.ItemTemplate>
    <DataTemplate>
        .....

            <Button HorizontalAlignment="Center" Height="50"
                    Width="80" Content="Read" 
                    Grid.Column="2" Visibility="Hidden" Name="ReadButton"/>

        </Grid>
        <DataTemplate.Triggers>
            <DataTrigger Binding="{Binding IsSelected,
                         RelativeSource={RelativeSource Mode=TemplatedParent}}"
                         Value="True">
                <Setter TargetName="ReadButton" Property="Visibility"
                        Value="Visible"/>
            </DataTrigger>
        </DataTemplate.Triggers>
    </DataTemplate>
</ListView.ItemTemplate>


.....
Oh可能重复。这可能比我在回答中所说的更清楚。我应该考虑多用这个
<ListView.ItemTemplate>
    <DataTemplate>
        .....

            <Button HorizontalAlignment="Center" Height="50"
                    Width="80" Content="Read" 
                    Grid.Column="2" Visibility="Hidden" Name="ReadButton"/>

        </Grid>
        <DataTemplate.Triggers>
            <DataTrigger Binding="{Binding IsSelected,
                         RelativeSource={RelativeSource Mode=TemplatedParent}}"
                         Value="True">
                <Setter TargetName="ReadButton" Property="Visibility"
                        Value="Visible"/>
            </DataTrigger>
        </DataTemplate.Triggers>
    </DataTemplate>
</ListView.ItemTemplate>