日期:2014-05-20  浏览次数:21298 次

WPF的ListBox加载大量图片卡死的问题
问题如下:ListBox的Itemplate是我自己定义的usercontrol,每个usercontrol都有一个image,当加载listbox的时候(大概有200个左右usercontrol)会很慢,而且加载完成之后移动鼠标或者滚轮都会造成卡死!!
ListBox代码定义如下:

  <ListBox Grid.Column="1" Grid.Row="1" Name="_MonitorDisplayArea" 
                         ScrollViewer.HorizontalScrollBarVisibility="Disabled"
                         VirtualizingStackPanel.IsVirtualizing="True" 
                         VirtualizingStackPanel.VirtualizationMode="Recycling"
                         ScrollViewer.CanContentScroll="False">
                    <ListBox.CacheMode>
                        <BitmapCache    EnableClearType="False" 
                                            RenderAtScale="1" 
                                            SnapsToDevicePixels="False"/>
                    </ListBox.CacheMode>
                    <ListBox.ItemsPanel>
                        <ItemsPanelTemplate>
                            <WrapPanel/>
                        </ItemsPanelTemplate>
                    </ListBox.ItemsPanel>
                    <ListBox.ItemTemplate>
                        <DataTemplate>
                            <local:MonitorState />
                        </DataTemplate>
                    </ListBox.ItemTemplate>
                </ListBox>