wp8.1 Study7： ListView 和GridView应用

对于列表控件，WP8.1常用的是ListView、GridView、ListBox控件。其中前两个是从第三个继承来的。

1、ListView控件

它是展示垂直列表的，如下图所示。它十分适合展示数据。

2、GridView控件

它是行列表展示数据的控件，排列图如下。通常用来展示基于图片的数据。

3、控件的Templates

常用的有HeaderTemplate、FooterTemplate、ItemTemplate。本文最下面有相关代码。

（其中还有ItemContainerStyle、ItemsPanel

4、属性：重新排序Reordering

WP8.1中：MyListView.ReorderMode = ListViewReorderMode.Enabled;

Win8.1中：MyListView.CanReorderItems = false;

但Grouped Lists （分组列表）不能重新排序。

5、属性：多种选定MultiSelection

当开启MultiSelection后，列表会变为下图。开启MultiSelection代码为：MyListView.SelectionMode =  ListViewSelectionMode.Multiple;

6、运用实例：

xaml代码：

        <Grid Grid.Row="1" x:Name="ContentRoot" Margin="19,9.5,19,0">
            <ListView Name="view1"
                      SelectionMode="None"
                      AllowDrop="True"
                      CanDragItems="True"
                      IsSwipeEnabled="True">
                <ListView.HeaderTemplate>
                    <DataTemplate>
                        <StackPanel>
                            <Canvas Height="15" Background="#962381E0">
                                <TextBlock Text="header">
                                    <TextBlock.Foreground>
                                        <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                                            <GradientStop Color="Black" Offset="0"/>
                                            <GradientStop Color="#FFF9F5F5" Offset="1"/>
                                        </LinearGradientBrush>
                                    </TextBlock.Foreground>
                                </TextBlock>
                            </Canvas>
                        </StackPanel>
                    </DataTemplate>
                </ListView.HeaderTemplate>
                <ListView.ItemTemplate>
                    <DataTemplate>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="{Binding Id}" Style="{ThemeResource ListViewItemTextBlockStyle}" Width="100"/>
                            <TextBlock Text="{Binding Name}"  Style="{ThemeResource ListViewItemTextBlockStyle}"/>
                        </StackPanel>

                    </DataTemplate>
                </ListView.ItemTemplate>
                <ListView.FooterTemplate>
                    <DataTemplate>
                        <TextBlock Foreground="Red" Text="这是个学习的好例子"/>
                    </DataTemplate>
                </ListView.FooterTemplate>
            </ListView>
        </Grid>
    </Grid>
    <Page.BottomAppBar>
        <CommandBar>
            <CommandBar.SecondaryCommands>
                <AppBarButton Label="appbarbutton"/>
            </CommandBar.SecondaryCommands>
            <AppBarButton Name="AllApps" Icon="AllApps" Label="多选" Click="AllApps_Click"/>
            <AppBarButton Name="viewall" Icon="ViewAll" Label="appbarbutton" Click="viewall_Click"/>
        </CommandBar>
    </Page.BottomAppBar>

相应的部分C#代码：

 List<School> items = new List<School>();
        public string[] str=new string[]{"华农","华工","中大","华师","暨大","广工","广外","广大","深大","广中医","南医大"};
        Random random = new Random();

            for (int i = 0; i < 100; i++)
            {
                items.Add(new School { Id = i, Name = str[random.Next(0,10)] });
            }
            this.view1.ItemsSource = items;

...

private void AllApps_Click(object sender, RoutedEventArgs e)
        {
            if (view1.SelectionMode == ListViewSelectionMode.Multiple)
            {
                view1.SelectionMode = ListViewSelectionMode.Single;
            }
           else
                view1.SelectionMode = ListViewSelectionMode.Multiple;
        }

        private void viewall_Click(object sender, RoutedEventArgs e)
        {
            if ( view1.ReorderMode == ListViewReorderMode.Enabled)
            {
                 view1.ReorderMode = ListViewReorderMode.Disabled;
            }
            else
                 view1.ReorderMode = ListViewReorderMode.Enabled;
        }

        private void gotopage2_Click(object sender, RoutedEventArgs e)
        {
            Frame.Navigate(typeof(Page2));
        }
    }