8,735
社区成员
发帖
与我相关
我的任务
分享
<Window x:Class="WPF_ImageBinding.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WPF_ImageBinding"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<local:String2BitmapSource x:Key="s2b"/>
</Window.Resources>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Image Name="img1" Source="Image/d.jpg"/>
<Image Name="img2" Grid.Column="1" Source="{Binding Url,Converter={StaticResource s2b}}"/>
</Grid>
</Window>
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 WPF_ImageBinding
{
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
this.DataContext = new Data() { Url = "/WPF_ImageBinding;component/Image/d.jpg" };
}
}
class Data
{
string _url = "";
public string Url
{
get { return _url; }
set
{
_url = value;
}
}
}
[ValueConversion(typeof(string), typeof(BitmapSource))]
public class String2BitmapSource : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
string url = value.ToString();
BitmapImage bim = new BitmapImage(new Uri(url, UriKind.RelativeOrAbsolute));
return bim;
}
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
return null;
}
}
}