• 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));
            }
        }

     ---------------------------------------------------------------------------------------------------------------------------------------------

    2015年2月26号添加

    一、ListView或GridView控件的GroupStyle

    使用GroupStyle属性可以更好为App展示数据,效果图如下:

    这种样式十分容易弄出来,步骤如下:

    step1:

    1 在Page.Resoures添加            
    2 <CollectionViewSource x:Name="collectionItems" IsSourceGrouped="True" Source="{Binding Items}" ItemsPath="Codes"/>

    step2:

    添加GroupStyle
    <ListView Name="listCode" ItemClick="listViewCode_ItemClick" 
                          ItemsSource="{Binding Source={StaticResource collectionItems}}" 
                          ItemTemplate="{StaticResource StandardTripleLineItemTemplate}"
                          IsItemClickEnabled="True">
                    <ListView.GroupStyle>
                        <GroupStyle>
                            <GroupStyle.HeaderTemplate>
                                <DataTemplate>
                                    <Grid>
                                        <Border Opacity="0.8" Width="350" CornerRadius="0,30,30,0" Background="{StaticResource MyFavoriteBrush}">
                                            <TextBlock Text="{Binding Title}" FontSize="30" Padding="5"/>
                                        </Border>
                                    </Grid>
                                </DataTemplate>
                            </GroupStyle.HeaderTemplate>
                        </GroupStyle>
                    </ListView.GroupStyle>
                </ListView>

    即可

    ps:collectionItems绑定的数据格式可参考https://msdn.microsoft.com/en-us/library/windows/apps/xaml/hh780627.aspx?f=255&MSPPError=-2147217396

    还可以使用SemanticZoom控件加强用户体验,demo地址:https://msdn.microsoft.com/zh-cn/library/windows/apps/xaml/hh781234

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  • 原文地址:https://www.cnblogs.com/NEIL-X/p/4149522.html
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