Question

我在列表框中遇到问题，其中包含带有三个按钮的网格。我在这个网格中实现了按钮的交换功能。我的问题是当我从左向右拖动按钮并且当它与另一个按钮重叠时拖动时我的拖动按钮显示在后面。但是当我从右向左拖动一个按钮时，这不会发生（正确的功能）。这是我正在使用的Xaml代码

<Grid x:Name="ContentPanel" Grid.Row="1">
            <ListBox Height="Auto" Name="listbox" VerticalAlignment="Top" ItemsSource="{Binding}" Background="#00995B5B" DataContext="{Binding}" d:LayoutOverrides="Width" HorizontalAlignment="Stretch"  HorizontalContentAlignment="Stretch">
                <ListBox.ItemContainerStyle>
                    <Style TargetType="ListBoxItem">
                        <Setter Property="HorizontalContentAlignment" Value="Stretch" />
                    </Style>
                </ListBox.ItemContainerStyle>
                <ListBox.ItemTemplate>
                    <DataTemplate>
                        <Grid Height="300"  Background="{Binding RowBackgroundBrush}">
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="1*" ></ColumnDefinition>
                                <ColumnDefinition Width="1*" ></ColumnDefinition>
                                <ColumnDefinition Width="1*" ></ColumnDefinition>
                            </Grid.ColumnDefinitions>
                            <Button Tag="{Binding IndexListItem1.PageIndex}"  Foreground="Black" Content="1"   Grid.Column="0" HorizontalAlignment="Center"  Margin="10,9,0,0" Width="133" d:LayoutOverrides="GridBox">
                                <toolkit:GestureService.GestureListener>
                                    <toolkit:GestureListener DragDelta="GestureListener_DragDelta" DragStarted="GestureListener_DragStarted" DragCompleted="GestureListener_DragCompleted" Hold="GestureListener_Hold"/>
                                </toolkit:GestureService.GestureListener>

                            </Button>
                            <Button Tag="{Binding IndexListItem2.PageIndex}" Content="2"    Grid.Column="1" HorizontalAlignment="Center" Margin="10,9,0,0" Width="133"  d:LayoutOverrides="GridBox">
                                <toolkit:GestureService.GestureListener>
                                    <toolkit:GestureListener DragDelta="GestureListener_DragDelta" DragStarted="GestureListener_DragStarted" DragCompleted="GestureListener_DragCompleted" Hold="GestureListener_Hold"/>
                                </toolkit:GestureService.GestureListener>

                            </Button>
                            <Button Tag="{Binding IndexListItem3.PageIndex}" Grid.Column="2" Content="3"  Foreground="Red" Margin="10,9,0,0"  Width="133" HorizontalAlignment="Center"  d:LayoutOverrides="GridBox">
                                <toolkit:GestureService.GestureListener>
                                    <toolkit:GestureListener DragDelta="GestureListener_DragDelta" DragStarted="GestureListener_DragStarted" DragCompleted="GestureListener_DragCompleted" Hold="GestureListener_Hold"/>
                                </toolkit:GestureService.GestureListener>

                            </Button>
                        </Grid>
                    </DataTemplate>
                </ListBox.ItemTemplate>
            </ListBox>
        </Grid>

Answer 1

在GestureListener_DragDelta事件中将canvas.ZIndexProperty添加到某个值100。它会正常工作。不要忘记将Zindex值设置为{{1}当拖动完成时。

在WP7中拖动ListBox中的按钮

1 个答案: