WPF重写了ListView的ItemsPanel，改用WrapPanel做容器。不能自动换行问题

直接上正确代码：

 1  <ListView x:Name="lv_product" HorizontalContentAlignment="Stretch" ItemsSource="{Binding Products}" 
 2            ScrollViewer.HorizontalScrollBarVisibility="Disabled" ScrollViewer.VerticalScrollBarVisibility="Visible" 
 3            BorderBrush="Transparent" Background="Transparent">
 4      
 5      <ListView.ItemsPanel>
 6          <ItemsPanelTemplate>
 7          <WrapPanel Orientation="Horizontal" FlowDirection="LeftToRight" ></WrapPanel>
 8          </ItemsPanelTemplate>
 9      </ListView.ItemsPanel>
10      <ListView.ItemTemplate>
11          <DataTemplate>
12              <StackPanel>
13                  <Image Source="{Binding PicturePath}" Width="80" Height="80"/>
14                  <TextBlock Text="{Binding ProductName}" HorizontalAlignment="Center"/>
15              </StackPanel>
16          </DataTemplate>
17      </ListView.ItemTemplate>
18  </ListView>

注意上面的 ScrollViewer.HorizontalScrollBarVisibility="Disabled"  这个设置很关键。因为ListView自带横向和纵向滚动条，必须关了自带的滚动条后WrapPanel的滚动才会起作用。