Question

我的UWP应用程序包含动态内容ListView。我想启用ScrollView当它的高度达到它运行的设备高度的末尾时（桌面/移动）。我不想设置ListView的高度/最大高度。因为它应该按原样显示。

我试过如下。但它没有用。仅当指定ListView的高度时才有效。

 <Grid HorizontalAlignment="Stretch"  >
        <Grid.RowDefinitions    >
            <RowDefinition Height="auto"  />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*"></ColumnDefinition>
        </Grid.ColumnDefinitions>
        <ListView x:Name="ItemListView" Margin="0,0,0,0"  ScrollViewer.VerticalScrollBarVisibility="Auto"   Grid.Row="0"  VerticalAlignment="Stretch" HorizontalAlignment="Stretch"  Width="Auto"  >
            <!--ListView ItemTemplate to fill-->
            <ListView.ItemContainerStyle>
                <Style TargetType="ListViewItem">
                    <Setter Property="HorizontalContentAlignment" Value="Stretch" />
                    <Setter Property="Padding" Value="0" />
                </Style>
            </ListView.ItemContainerStyle>
            <ListView.ItemTemplate>
                <DataTemplate>
                    <Grid  >
                        <Grid.RowDefinitions>
                            <RowDefinition></RowDefinition>
                            <RowDefinition></RowDefinition>
                            <RowDefinition></RowDefinition>
                        </Grid.RowDefinitions>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width=".5*"/>
                            <ColumnDefinition Width="*"/>
                            <ColumnDefinition Width="auto"/>
                            <ColumnDefinition Width="*"/>
                            <ColumnDefinition Width=".8*"/>
                        </Grid.ColumnDefinitions>
                        <StackPanel Grid.Row="0" Grid.Column="0" HorizontalAlignment="Center" VerticalAlignment="Center"  Grid.RowSpan="2">
                            <TextBlock Text="{Binding SerialNum}" TextAlignment="Center"  />
                        </StackPanel>
                        <StackPanel Grid.Column="1" Grid.Row="0" >
                            <TextBlock Text="{Binding XX}"  TextAlignment="Center"   />
                        </StackPanel>
                        <StackPanel Grid.Row="0" Grid.Column="2" Orientation="Vertical" >
                            <TextBlock Text="{Binding YY}"  TextAlignment="Center" />
                            <TextBlock x:Name="tb_list_date" HorizontalAlignment="Center" Text="{Binding ZZ}" TextAlignment="Center"  />

                        </StackPanel>
                        <StackPanel Grid.Row="0" Grid.Column="3">
                            <TextBlock Text="{Binding AA}"  TextAlignment="Center" />

                        </StackPanel>
                        <StackPanel Grid.Row="0" Grid.Column="4"    Grid.RowSpan="2" VerticalAlignment="Center" HorizontalAlignment="Center" >
                            <TextBlock Text="{Binding BB}" TextAlignment="Center"/>                          </StackPanel>
                    </Grid>
                </DataTemplate>
            </ListView.ItemTemplate>
        </ListView>
   </Grid>

Answer 1

问题是Grid.RowDefinition设置为Auto高度。这使得行中的控件可以使用他们需要的任何高度。这会导致ListView超出页面边界，因为它的高度实际上是列表的整个高度，所以它不会滚动（但是你看不到溢出）。

要解决此问题，请将Grid.RowDefinition Height更改为*。这将为控件提供Grid中所有可用空间，但不超过：

<Grid HorizontalAlignment="Stretch">
    <Grid.RowDefinitions>
        <RowDefinition Height="*"  />
    </Grid.RowDefinitions>
    ...
</Grid>

ListView的垂直ScrollView没有高度

1 个答案: