Question

我有一个lvAccessPoints列表，它有3个属性， 1）名称 2）密码 3）isSecured

我在每个项目中都有一个texbox和按钮，我当前正在选择一个项目时显示。

所以现在当我选择一个项目文本框时，按钮就会出现。

但我还想查看属性isSecured以显示文本框

条件是

       textbox=> visible: if item is selected and has isSecured property true
       hidden:if isSecured is false (irrespective of selected or not)




<ListView Margin="0" Name="lvAccessPoints" Background="#ff1d1d1d" Grid.Row="1" BorderThickness="0">
<ListView.ItemTemplate>
                <DataTemplate>
                    <WrapPanel Orientation="Vertical">
                        <StackPanel Orientation="Horizontal">
                            <!--<iconPacks:PackIconModern Kind="ConnectionWifi" Foreground="White" Width="30" Height="30"/>-->
                            <TextBlock Text="{Binding Points.Name}" FontWeight="Bold" Foreground="White" Padding="10,0" FontSize="15" VerticalAlignment="Center"/>
                        </StackPanel>
                        <StackPanel Orientation="Horizontal">
                            <Grid>
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition></ColumnDefinition>
                                    <ColumnDefinition></ColumnDefinition>
                                </Grid.ColumnDefinitions>
                            </Grid>
                            <TextBox HorizontalAlignment="Left"
                     x:Name="txt"
                     TextWrapping="Wrap"
                     Text="{Binding Password}"
                     VerticalAlignment="Center"
                     Width="200"
                     Height="28"
                     Visibility="Collapsed" />
                            <Button x:Name="btn" Grid.Column="1" Visibility="Collapsed"  Width="100" Margin="10" HorizontalAlignment="Left" Background="#FF2d89ef" Foreground="White" Padding="5" VerticalAlignment="Center" Grid.Row="2" Click="Button_Click_1">
                                <TextBlock Text="Connect" />
                            </Button>
                        </StackPanel>
                    </WrapPanel>


                    <DataTemplate.Triggers>
                        <DataTrigger Binding="{Binding  Path=IsSelected, RelativeSource={RelativeSource FindAncestor, AncestorType=ListViewItem}}" Value="True">
                            <Setter TargetName="txt" Property="Visibility" Value="Visible" />
                            <Setter TargetName="btn" Property="Visibility" Value="Visible" />
                        </DataTrigger>
                    </DataTemplate.Triggers>
                </DataTemplate>
            </ListView.ItemTemplate>

要显示文本框，我需要检查2个属性，一个是isSecured，另一个是isSelectd。

如何更改我的代码？

Answer 1

使用MultiDataTrigger：

<DataTemplate.Triggers>
    <MultiDataTrigger>
        <MultiDataTrigger.Conditions>
            <Condition Binding="{Binding Path=IsSelected, RelativeSource={RelativeSource FindAncestor, AncestorType=ListViewItem}}" Value="True" />
            <Condition Binding="{Binding Path=points.isSecured}" Value="True"/>
        </MultiDataTrigger.Conditions>
        <Setter TargetName="txt" Property="Visibility" Value="Visible" />
        <Setter TargetName="btn" Property="Visibility" Value="Visible" />
    </MultiDataTrigger>
</DataTemplate.Triggers>

如何基于isSelected属性和另一个列表项属性显示/隐藏？

1 个答案: