Silverlight XAML绑定元素名称
我有以下XAML：Silverlight XAML绑定元素名称,silverlight,xaml,binding,Silverlight,Xaml,Binding,我有以下XAML： <sdk:Label Content="{Binding RefreshTextToggle, Converter={StaticResource enumToText}, ConverterParameter=ItemsOfInterest,FallbackValue='Please select items of interest to you'}" Style="{StaticResource
<sdk:Label Content="{Binding RefreshTextToggle, Converter={StaticResource enumToText}, ConverterParameter=ItemsOfInterest,FallbackValue='Please select items of interest to you'}"
Style="{StaticResource StandardLabel}"
Height="{Binding ElementName=ItemsOfInterest,Path=Height}"/>
<ListBox Name="ItemsOfInterest"
ItemsSource="{Binding Path=ItemsOfInterest}"
Margin="5"
MinHeight="25"
Width="250"
HorizontalAlignment="Left">
编辑： 事实上，这是一个与Silverlight 您必须使用SizeChanged事件，如下所示：
<UserControl x:Class="SilverlightApplication3.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="400">
<Grid x:Name="LayoutRoot" Background="White">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Button Content="Add Item" Click="Button_Click" />
<ListBox x:Name="listBox1" Grid.Column="0" Grid.Row="1" VerticalAlignment="Top" SizeChanged="listBox1_SizeChanged" />
<ListBox x:Name="listBox2" Grid.Column="1" Grid.Row="1" VerticalAlignment="Top" />
</Grid>
</UserControl>
编辑： 这就是这样一种行为：
<UserControl x:Class="SilverlightApplication3.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:SilverlightApplication3"
mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="400">
<Grid x:Name="LayoutRoot" Background="White">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Button Content="Add Item" Click="Button_Click" />
<ListBox x:Name="listBox1" Grid.Column="0" Grid.Row="1" VerticalAlignment="Top" />
<ListBox x:Name="listBox2" Grid.Column="1" Grid.Row="1" VerticalAlignment="Top" local:SizeSynchronizationBehavior.HeightElement="{Binding ElementName=listBox1}" />
</Grid>
</UserControl>
using System.Windows;
using System.Windows.Controls;
namespace SilverlightApplication3 {
public partial class MainPage : UserControl {
public MainPage() {
InitializeComponent();
}
private int counter;
private void Button_Click(object sender, RoutedEventArgs e) {
this.counter++;
this.listBox1.Items.Add(counter.ToString());
}
private void listBox1_SizeChanged(object sender, SizeChangedEventArgs e) {
this.listBox2.Height = this.listBox1.ActualHeight;
}
}
}
using System;
using System.Windows;
using System.Windows.Controls;
namespace SilverlightApplication3 {
public partial class MainPage : UserControl {
public MainPage() {
InitializeComponent();
}
private int counter;
private void Button_Click(object sender, RoutedEventArgs e) {
this.counter++;
this.listBox1.Items.Add(counter.ToString());
}
}
public static class SizeSynchronizationBehavior {
#region Dependency Properties
///////////////////////////////////////////////////////////////////////////////////
// HeightElement
///////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Identifies the <c>HeightElement</c> attached dependency property. This field is read-only.
/// </summary>
/// <value>The identifier for the <c>HeightElement</c> attached dependency property.</value>
public static readonly DependencyProperty HeightElementProperty = DependencyProperty.RegisterAttached("HeightElement",
typeof(FrameworkElement), typeof(SizeSynchronizationBehavior), new PropertyMetadata(null, OnHeightElementPropertyValueChanged));
/// <summary>
/// Gets the value of the <see cref="HeightElementProperty"/> attached property for the specified <see cref="FrameworkElement"/>.
/// </summary>
/// <param name="obj">The object to which the attached property is retrieved.</param>
/// <returns>
/// The value of the <see cref="HeightElementProperty"/> attached property for the the specified <see cref="FrameworkElement"/>.
/// </returns>
public static FrameworkElement GetHeightElement(FrameworkElement obj) {
if (obj == null) throw new ArgumentNullException("obj");
return (FrameworkElement)obj.GetValue(HeightElementProperty);
}
/// <summary>
/// Sets the value of the <see cref="HeightElementProperty"/> attached property to the specified <see cref="FrameworkElement"/>.
/// </summary>
/// <param name="obj">The object to which the attached property is written.</param>
/// <param name="value">
/// The new value of the <see cref="HeightElementProperty"/> attached property to the specified <see cref="FrameworkElement"/>.
/// </param>
public static void SetHeightElement(FrameworkElement obj, FrameworkElement value) {
if (obj == null) throw new ArgumentNullException("obj");
obj.SetValue(HeightElementProperty, value);
}
/// <summary>
/// Called when <see cref="HeightElementProperty"/> is changed.
/// </summary>
/// <param name="d">The dependency object that was changed.</param>
/// <param name="e">The <see cref="DependencyPropertyChangedEventArgs"/> instance containing the event data.</param>
private static void OnHeightElementPropertyValueChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) {
FrameworkElement element = d as FrameworkElement;
if (element == null)
return;
SizeChangedEventHandler heightSizeChangedEventHandler = GetSizeChangedEventHandler(element);
if (heightSizeChangedEventHandler == null) {
heightSizeChangedEventHandler = (sender, eventArgs) => {
FrameworkElement he = GetHeightElement(element);
if (he != null)
element.Height = he.ActualHeight;
};
SetSizeChangedEventHandler(element, heightSizeChangedEventHandler);
}
FrameworkElement heightElement = e.OldValue as FrameworkElement;
if (heightElement != null)
heightElement.SizeChanged += heightSizeChangedEventHandler;
heightElement = e.NewValue as FrameworkElement;
if (heightElement != null)
heightElement.SizeChanged += heightSizeChangedEventHandler;
}
///////////////////////////////////////////////////////////////////////////////////
// SizeChangedEventHandler
///////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Identifies the <c>SizeChangedEventHandler</c> attached dependency property. This field is read-only.
/// </summary>
/// <value>The identifier for the <c>SizeChangedEventHandler</c> attached dependency property.</value>
private static readonly DependencyProperty SizeChangedEventHandlerProperty = DependencyProperty.RegisterAttached("SizeChangedEventHandler",
typeof(SizeChangedEventHandler), typeof(SizeSynchronizationBehavior), new PropertyMetadata(null));
/// <summary>
/// Gets the value of the <see cref="SizeChangedEventHandlerProperty"/> attached property for the specified <see cref="FrameworkElement"/>.
/// </summary>
/// <param name="obj">The object to which the attached property is retrieved.</param>
/// <returns>
/// The value of the <see cref="SizeChangedEventHandlerProperty"/> attached property for the the specified <see cref="FrameworkElement"/>.
/// </returns>
private static SizeChangedEventHandler GetSizeChangedEventHandler(FrameworkElement obj) {
if (obj == null) throw new ArgumentNullException("obj");
return (SizeChangedEventHandler)obj.GetValue(SizeChangedEventHandlerProperty);
}
/// <summary>
/// Sets the value of the <see cref="SizeChangedEventHandlerProperty"/> attached property to the specified <see cref="FrameworkElement"/>.
/// </summary>
/// <param name="obj">The object to which the attached property is written.</param>
/// <param name="value">
/// The new value of the <see cref="SizeChangedEventHandlerProperty"/> attached property to the specified <see cref="FrameworkElement"/>.
/// </param>
private static void SetSizeChangedEventHandler(FrameworkElement obj, SizeChangedEventHandler value) {
if (obj == null) throw new ArgumentNullException("obj");
obj.SetValue(SizeChangedEventHandlerProperty, value);
}
#endregion // Dependency Properties
}
}
使用系统；
使用System.Windows；
使用System.Windows.Controls；
命名空间SilverlightApplication3{
公共部分类主页面：UserControl{
公共主页（）{
初始化组件（）；
}
专用int计数器；
私有无效按钮\u单击（对象发送者，路由目标e）{
这个.counter++；
this.listBox1.Items.Add（counter.ToString（））；
}
}
公共静态类大小同步行为{
#区域依赖属性
///////////////////////////////////////////////////////////////////////////////////
//高度元素
///////////////////////////////////////////////////////////////////////////////////
///
///标识HeightElement附加的依赖项属性。此字段为只读。
///
///HeightElement附加依赖项属性的标识符。
公共静态只读DependencyProperty HeightElementProperty=DependencyProperty.RegisterAttached（“HeightElement”，
typeof（FrameworkElement）、typeof（SizeSynchronizationBehavior）、new PropertyMetadata（null，OnHeightElementPropertyValueChanged））；
///
///获取指定对象的附加属性的值。
///
///检索附加属性的对象。
///
///指定对象的附加属性的值。
///
公共静态FrameworkElement GetHeightElement（FrameworkElement obj）{
如果（obj==null）抛出新的ArgumentNullException（“obj”）；
返回（FrameworkElement）对象GetValue（HeightElementProperty）；
}
///
///将附着特性的值设置为指定的值。
///
///向其写入附加属性的对象。
///
///将附加属性的新值指定给指定的。
///
公共静态void SetHeightElement（FrameworkElement对象，FrameworkElement值）{
如果（obj==null）抛出新的ArgumentNullException（“obj”）；
对象设置值（HeightElementProperty，值）；
}
///
///更改时调用。
///
///已更改的依赖项对象。
///包含事件数据的实例。
私有静态无效OnHeightElementPropertyValueChanged（DependencyObject d，DependencyPropertyChangedEventArgs e）{
FrameworkElement=d作为FrameworkElement；
if（元素==null）
返回；
SizeChangedEventHandler高度SizeChangedEventHandler=GetSizeChangedEventHandler（元素）；
如果（heightSizeChangedEventHandler==null）{
heightSizeChangedEventHandler=（发送方，事件参数）=>{
框架元素he=GetHeightElement（元素）；
如果（他！=null）
元素高度=实际高度；
};
SetSizeChangedEventHandler（元件，高度尺寸ChangedEventHandler）；
}
FrameworkElement heightElement=e.OldValue作为FrameworkElement；
如果（heightElement！=null）
heightElement.SizeChanged+=heightSizeChangedEventHandler；
heightElement=e.NewValue作为框架元素；
如果（heightElement！=null）
heightElement.SizeChanged+=heightSizeChangedEventHandler；
}
///////////////////////////////////////////////////////////////////////////////////
//SizeChangedVenthandler
///////////////////////////////////////////////////////////////////////////////////
///
///标识SizeChangedEventHandler附加的依赖项属性。此字段为只读。
///
///SizeChangedEventHandler附加依赖项属性的标识符。
私有静态只读DependencyProperty SizeChangedEventHandler属性=DependencyProperty.RegisterAttached（“SizeChangedEventHandler”，
typeof（SizeChangedEventHandler）、typeof（SizeSynchronizationBehavior）、新属性元数据（null）；
///
///获取指定对象的附加属性的值。
///
///检索附加属性的对象。
///
///指定对象的附加属性的值。
///
私有静态SizeChangedEventHandler GetSizeChangedEventHandler（FrameworkElement obj）{
如果（obj==null）抛出新的ArgumentNullException（“obj”）；
返回（SizeChangedEventHandler）obj.GetValue（SizeChangedEventHandler属性）；
}
///
///将附着特性的值设置为指定的值。
///
///向其写入附加属性的对象。
///
///将附加属性的新值指定给指定的。
///
专用静态无效设置SizeChangedEventHandler（FrameworkElement obj，SizeChangedEventHandle