WPF(附加属性 Slider)

[html]
<Window x:Class="TestOfAttachPropertyOfSlider.MainWindow" 
        xmlns="https://schemas.microsoft.com/winfx/2006/xaml/presentation" 
        xmlns:x="https://schemas.microsoft.com/winfx/2006/xaml" 
        Title="MainWindow" Height="350" Width="525"> 
    <Canvas > 
        <Slider x:Name="sliderX"  
                Canvas.Top="10" 
                Canvas.Left="10" 
                Width="260" 
                Minimum="50" 
                Maximum="200" /> 
        <Slider x:Name="sliderY" 
                Canvas.Top="40" 
                Canvas.Left="10" 
                Width="260" 
                Minimum="50" 
                Maximum="200" /> 
         
        <Rectangle x:Name="rect" Fill="Blue" 
                   Width="30" Height="30" 
                   Canvas.Left="{Binding ElementName=sliderX,Path=Value}" 
                   Canvas.Top="{Binding ElementName=sliderY,Path=Value}" /> 
         
    </Canvas> 
</Window> 

<Window x:Class="TestOfAttachPropertyOfSlider.MainWindow"
        xmlns="https://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="https://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Canvas >
        <Slider x:Name="sliderX"
                Canvas.Top="10"
                Canvas.Left="10"
                Width="260"
                Minimum="50"
                Maximum="200" />
        <Slider x:Name="sliderY"
                Canvas.Top="40"
                Canvas.Left="10"
                Width="260"
                Minimum="50"
                Maximum="200" />
       
        <Rectangle x:Name="rect" Fill="Blue"
                   Width="30" Height="30"
                   Canvas.Left="{Binding ElementName=sliderX,Path=Value}"
                   Canvas.Top="{Binding ElementName=sliderY,Path=Value}" />
       
    </Canvas>
</Window>
----------------------------------------------------------------------------------->

等效的C#代码

[csharp] 
using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.Windows; 
using System.Windows.Controls; 
using System.Windows.Data; 
using System.Windows.Documents; 
using System.Windows.Input; 
using System.Windows.Media; 
using System.Windows.Media.Imaging; 
using System.Windows.Navigation; 
using System.Windows.Shapes; 
 
namespace TestOfAttachPropertyOfSlider 
{ 
    /// <summary>  
    /// Interaction logic for MainWindow.xaml  
    /// </summary>  
    public partial class MainWindow : Window 
    { 
        public MainWindow() 
        { 
            InitializeComponent(); 
 
            this.rect.SetBinding(Canvas.LeftProperty, new Binding("Value") 
                                                          { 
                                                              Source = sliderX 
                                                          }); 
            this.rect.SetBinding(Canvas.RightProperty, new Binding("Value") 
                                                           { 
                                                               Source = sliderY 
                                                           }); 
        } 
    } 
} 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace TestOfAttachPropertyOfSlider
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();

            this.rect.SetBinding(Canvas.LeftProperty, new Binding("Value")
                                                          {
                                                              Source = sliderX
                                                          });
            this.rect.SetBinding(Canvas.RightProperty, new Binding("Value")
                                                           {
                                                               Source = sliderY
                                                           });
        }
    }
}