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重新想象 Windows 8 Store Apps (11)

 
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[源码下载]


重新想象 Windows 8 Store Apps (11) - 控件之 ListView 和 GridView



作者:webabcd


介绍
重新想象 Windows 8 Store Apps 之 ListView 和 GridView

  • ListView - 列表控件
  • GridView - 网格控件



示例
1、ListView 的 Demo
ListViewDemo.xaml

<Page
    x:Class="XamlDemo.Controls.ListViewDemo"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:XamlDemo.Controls"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Page.Resources>
        <DataTemplate x:Key="ItemTemplate">
            <StackPanel Orientation="Vertical">
                <TextBlock TextWrapping="Wrap" FontSize="14.667" Text="{Binding Name}" HorizontalAlignment="Left" />
                <TextBlock TextWrapping="Wrap" FontSize="14.667" Text="{Binding Age}" HorizontalAlignment="Left"/>
            </StackPanel>
        </DataTemplate>
        <Style x:Key="ItemContainerStyle"  TargetType="ListViewItem">
            <Setter Property="Width" Value="292" />
            <Setter Property="Height" Value="80" />
            <Setter Property="Padding" Value="0" />
            <!--
                即使将 Margin 设置为“0”,也无法去掉 item 之间的 margin
                如果想要去掉 item 之间的 margin,请将此 Margin 属性设置为“-4”
            -->
            <Setter Property="Margin" Value="0" />
            <Setter Property="Background" Value="Blue" />
        </Style>
    </Page.Resources>

    <Grid Background="Transparent">
        <Grid Margin="120 0 0 0">

            <TextBlock Name="lblMsg" FontSize="14.667" />

            <StackPanel Orientation="Horizontal" VerticalAlignment="Top" Margin="0 30 0 0">
                <CheckBox Name="chkIsSwipeEnabled" Content="IsSwipeEnabled" />
                <CheckBox Name="chkIsItemClickEnabled" Content="IsItemClickEnabled" Margin="10 0 0 0" />
            </StackPanel>

            <!--后台绑定方式为 ListView 提供数据-->
            <ListView x:Name="listView" Width="300" VerticalAlignment="Top" HorizontalAlignment="Left" Margin="0 60 10 10" BorderThickness="1" BorderBrush="Red" Background="LightBlue"
                      ItemTemplate="{StaticResource ItemTemplate}"
                      ItemContainerStyle="{StaticResource ItemContainerStyle}"
                      ScrollViewer.VerticalScrollBarVisibility="Auto" ScrollViewer.HorizontalScrollBarVisibility="Auto"
                      SelectionMode="Single"
                      SelectionChanged="listView_SelectionChanged_1"
                      IsSwipeEnabled="{Binding IsChecked, ElementName=chkIsSwipeEnabled}"
                      IsItemClickEnabled="{Binding IsChecked, ElementName=chkIsItemClickEnabled}" 
                      ItemClick="listView_ItemClick_1">
            </ListView>

            <!--
                xaml 方式为 ListView 添加内容
                <ListView>
                    <ListView.Items>
                        <ListViewItem>
                            ...
                        </ListViewItem>
                        <ListViewItem>
                            ...
                        </ListViewItem>
                        ...
                    </ListView.Items>
                </ListView>
            -->
        </Grid>
    </Grid>
</Page>

ListViewDemo.xaml.cs

/*
 * ListView - 列表控件
 *     IsItemClickEnabled - item 是否可被点击
 *     IsSwipeEnabled - 是否支持 swipe 操作(对于 ListView 来说,左右猛击 item 称之为 swipe)
 *     SelectionMode - item 的选中模式(Windows.UI.Xaml.Controls.ListViewSelectionMode 枚举)
 *         None - 不能被选中
 *         Single - 只能单选
 *         Multiple - 仅通过鼠标多选
 *         Extended - 通过鼠标和辅助键多选(ctrl 或 shift)
 *     SelectedItems - 被选中的 items 集合
 *     ItemClick - item 被单击时触发的事件
 *     SelectAll() - 选中全部 items
 *     ScrollIntoView(object item, ScrollIntoViewAlignment alignment) - 滚动到指定的 item
 *         ScrollIntoViewAlignment.Default - 与该 item 的最近边缘对齐
 *         ScrollIntoViewAlignment.Leading - 与该 item 的前边缘对齐
 *         
 * 
 * 注:
 * IsItemClickEnabled == false && IsSwipeEnabled == false 无法响应单击事件,单击则意味着选中,无法 swipe
 * IsItemClickEnabled == true && IsSwipeEnabled == false 可以响应单击事件,无法响应选中事件,无法 swipe
 * IsItemClickEnabled == false && IsSwipeEnabled == true 无法响应单击事件,单击和 swipe 均意味着选中
 * IsItemClickEnabled == true && IsSwipeEnabled == true 可以响应单击事件,swipe 则意味着选中
 * 
 * 关于 SemanticZoom, item的拖动, item的尺寸可变等之后通过 GridView 来介绍
 * 
 * 关于分页加载内容在“数据绑定”一节做介绍
 */

using System.Collections.Generic;
using Windows.UI.Xaml.Controls;
using XamlDemo.Model;

namespace XamlDemo.Controls
{
    public sealed partial class ListViewDemo : Page
    {
        public ListViewDemo()
        {
            this.InitializeComponent();

            // 绑定数据
            List<Employee> dataSource = TestData.GetEmployees();
            listView.ItemsSource = dataSource;
        }

        // 单击行为的事件
        private void listView_ItemClick_1(object sender, ItemClickEventArgs e)
        {
            lblMsg.Text = "被单击的 employee 的 name 为:" + (e.ClickedItem as Employee).Name;
        }

        // 选中行为的事件
        private void listView_SelectionChanged_1(object sender, SelectionChangedEventArgs e)
        {
            if (e.AddedItems.Count > 0)
                lblMsg.Text = "此次操作被选中的 employee 的 name 为:" + (e.AddedItems[0] as Employee).Name;
            else
                lblMsg.Text = "此次操作没有被选中的 employee";
        }
    }
}


2、GridView 的 Demo
GridView/Demo.xaml

<Page
    x:Class="XamlDemo.Controls.GridView.Demo"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:XamlDemo.Controls.GridView"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Page.Resources>
        <DataTemplate x:Key="ItemTemplate">
            <StackPanel Orientation="Vertical">
                <TextBlock TextWrapping="Wrap" FontSize="14.667" Text="{Binding Name}" HorizontalAlignment="Left" />
                <TextBlock TextWrapping="Wrap" FontSize="14.667" Text="{Binding Age}" HorizontalAlignment="Left"/>
            </StackPanel>
        </DataTemplate>
        <Style x:Key="ItemContainerStyle"  TargetType="GridViewItem">
            <Setter Property="Width" Value="292" />
            <Setter Property="Height" Value="80" />
            <!--
                即使将 Margin 设置为“0”,也无法去掉 item 之间的 margin
                如果想要去掉 item 之间的 margin,请将此 Margin 属性设置为“-4”
            -->
            <Setter Property="Margin" Value="0" />
            <Setter Property="Background" Value="Blue" />
        </Style>
        <ItemsPanelTemplate x:Key="ItemsPanel">
            <!--
                注:WrapGrid 继承自 VirtualizingPanel,而 VariableSizedWrapGrid 并未继承 VirtualizingPanel
            -->
            <WrapGrid MaximumRowsOrColumns="3" Orientation="Vertical" VerticalChildrenAlignment="Top" HorizontalChildrenAlignment="Left" />
        </ItemsPanelTemplate>
    </Page.Resources>

    <Grid Background="Transparent">
        <StackPanel Margin="120 0 0 0">

            <TextBlock Name="lblMsg" FontSize="14.667" />

            <StackPanel Orientation="Horizontal" Margin="0 10 0 0">
                <CheckBox Name="chkIsSwipeEnabled" Content="IsSwipeEnabled" />
                <CheckBox Name="chkIsItemClickEnabled" Content="IsItemClickEnabled" Margin="10 0 0 0" />
            </StackPanel>

            <!--后台绑定方式为 ListView 提供数据-->
            <GridView x:Name="gridView" VerticalAlignment="Top" Margin="0 10 10 0" BorderThickness="1" BorderBrush="Red" Background="LightBlue"
                      ItemTemplate="{StaticResource ItemTemplate}"
                      ItemContainerStyle="{StaticResource ItemContainerStyle}"
                      ItemsPanel="{StaticResource ItemsPanel}"
                      ScrollViewer.VerticalScrollBarVisibility="Auto" ScrollViewer.HorizontalScrollBarVisibility="Auto"
                      SelectionMode="Single"
                      SelectionChanged="gridView_SelectionChanged_1"
                      IsSwipeEnabled="{Binding IsChecked, ElementName=chkIsSwipeEnabled}"
                      IsItemClickEnabled="{Binding IsChecked, ElementName=chkIsItemClickEnabled}" 
                      ItemClick="gridView_ItemClick_1">
            </GridView>

            <!--
                xaml 方式为 ListView 添加内容
                <GridView>
                    <GridView.Items>
                        <GridViewItem>
                            ...
                        </GridViewItem>
                        <GridViewItem>
                            ...
                        </GridViewItem>
                        ...
                    </GridView.Items>
                </GridView>
            -->
        </StackPanel>
    </Grid>
</Page>

GridView/Demo.xaml.cs

/*
 * GridView - 网格控件
 *     IsItemClickEnabled - item 是否可被点击
 *     IsSwipeEnabled - 是否支持 swipe 操作(对于 GridView 来说,上下猛击 item 称之为 swipe)
 *     SelectionMode - item 的选中模式(Windows.UI.Xaml.Controls.ListViewSelectionMode 枚举)
 *         None - 不能被选中
 *         Single - 只能单选
 *         Multiple - 仅通过鼠标多选
 *         Extended - 通过鼠标和辅助键多选(ctrl 或 shift)
 *     SelectedItems - 被选中的 items 集合
 *     ItemClick - item 被单击时触发的事件
 *     SelectAll() - 选中全部 items
 *     ScrollIntoView(object item, ScrollIntoViewAlignment alignment) - 滚动到指定的 item
 *         ScrollIntoViewAlignment.Default - 与该 item 的最近边缘对齐
 *         ScrollIntoViewAlignment.Leading - 与该 item 的前边缘对齐
 *         
 * 
 * 注:
 * IsItemClickEnabled == false && IsSwipeEnabled == false 无法响应单击事件,单击则意味着选中,无法 swipe
 * IsItemClickEnabled == true && IsSwipeEnabled == false 可以响应单击事件,无法响应选中事件,无法 swipe
 * IsItemClickEnabled == false && IsSwipeEnabled == true 无法响应单击事件,单击和 swipe 均意味着选中
 * IsItemClickEnabled == true && IsSwipeEnabled == true 可以响应单击事件,swipe 则意味着选中
 */

using System.Collections.Generic;
using Windows.UI.Xaml.Controls;
using XamlDemo.Model;

namespace XamlDemo.Controls.GridView
{
    public sealed partial class Demo : Page
    {
        public Demo()
        {
            this.InitializeComponent();

            // 绑定数据
            List<Employee> dataSource = TestData.GetEmployees();
            gridView.ItemsSource = dataSource;
        }

        // 单击行为的事件
        private void gridView_ItemClick_1(object sender, ItemClickEventArgs e)
        {
            lblMsg.Text = "被单击的 employee 的 name 为:" + (e.ClickedItem as Employee).Name;
        }

        // 选中行为的事件
        private void gridView_SelectionChanged_1(object sender, SelectionChangedEventArgs e)
        {
            if (e.AddedItems.Count > 0)
                lblMsg.Text = "此次操作被选中的 employee 的 name 为:" + (e.AddedItems[0] as Employee).Name;
            else
                lblMsg.Text = "此次操作没有被选中的 employee";
        }
    }
}



OK
[源码下载]

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