[WP8] ListBox的Item宽度自动填满
范例下载
范例程序代码:点此下载
问题情景
开发WP8应用程序的时候,常常会需要使用ListBox作为容器来呈现各种数据集合。但是在ListBox呈现数据时,ListBox中每个用来呈现数据的Item控件,在默认的状态下,宽度并不会填满整个ListBox。这样的默认样式,会因为Item控件的内容而动态的决定实际宽度,这很容易造成显示时排版不整齐,进而影响整体美观。
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执行结果
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程序代码(.XAML)
<!--Resources--> <phone:PhoneApplicationPage.Resources> <!--TestTemplate--> <DataTemplate x:Key="TestDataTemplate"> <Button Content="{Binding Path=Name}" Background="LightPink" /> </DataTemplate> </phone:PhoneApplicationPage.Resources> <!--LayoutRoot--> <ListBox x:Name="ListBox001" ItemTemplate="{StaticResource TestDataTemplate}" Background="LightBlue"> </ListBox>
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程序代码(.CS)
public class TestData { public string Name { get; set; } } public partial class MainPage : PhoneApplicationPage { // Constructors public MainPage() { // Initialize this.InitializeComponent(); // Data var dataList = new List<TestData>(); dataList.Add(new TestData() { Name = "D1" }); dataList.Add(new TestData() { Name = "D2222" }); dataList.Add(new TestData() { Name = "D33" }); dataList.Add(new TestData() { Name = "D444444" }); dataList.Add(new TestData() { Name = "D5" }); dataList.Add(new TestData() { Name = "D6" }); // Binding this.ListBox001.ItemsSource = dataList; } }
解决方案
解决方案很简单,只要照着下列范例的XAML内容,将ListBox中Item控件的HorizontalContentAlignment属性重新定义为Stretch,就可以让Item控件的宽度填满整个ListBox。
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执行结果
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程序代码(.XAML)
<!--Resources--> <phone:PhoneApplicationPage.Resources> <!--TestTemplate--> <DataTemplate x:Key="TestDataTemplate"> <Button Content="{Binding Path=Name}" Background="LightPink" /> </DataTemplate> </phone:PhoneApplicationPage.Resources> <!--LayoutRoot--> <ListBox x:Name="ListBox001" ItemTemplate="{StaticResource TestDataTemplate}" Background="LightBlue"> <!--Style--> <ListBox.ItemContainerStyle> <Style TargetType="ListBoxItem"> <Setter Property="HorizontalContentAlignment" Value="Stretch"/> </Style> </ListBox.ItemContainerStyle> </ListBox>
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程序代码(.CS)
public class TestData { public string Name { get; set; } } public partial class MainPage : PhoneApplicationPage { // Constructors public MainPage() { // Initialize this.InitializeComponent(); // Data var dataList = new List<TestData>(); dataList.Add(new TestData() { Name = "D1" }); dataList.Add(new TestData() { Name = "D2222" }); dataList.Add(new TestData() { Name = "D33" }); dataList.Add(new TestData() { Name = "D444444" }); dataList.Add(new TestData() { Name = "D5" }); dataList.Add(new TestData() { Name = "D6" }); // Binding this.ListBox001.ItemsSource = dataList; } }