找到了一个我满意的方法。使用
Reed Copsey's pointer
和
this tutorial
IValueConverter
.
这是我的转换器
System.Drawing.Image
到
System.Windows.Media.ImageSource
;
using System;
using System.Drawing.Imaging;
using System.Globalization;
using System.IO;
using System.Windows.Data;
namespace System.Windows.Media
{
/// <summary>
/// One-way converter from System.Drawing.Image to System.Windows.Media.ImageSource
/// </summary>
[ValueConversion(typeof(System.Drawing.Image), typeof(System.Windows.Media.ImageSource))]
public class ImageConverter : IValueConverter
{
public object Convert(object value, Type targetType,
object parameter, CultureInfo culture)
{
// empty images are empty...
if (value == null) { return null; }
var image = (System.Drawing.Image)value;
// Winforms Image we want to get the WPF Image from...
var bitmap = new System.Windows.Media.Imaging.BitmapImage();
bitmap.BeginInit();
MemoryStream memoryStream = new MemoryStream();
// Save to a memory stream...
image.Save(memoryStream, ImageFormat.Bmp);
// Rewind the stream...
memoryStream.Seek(0, System.IO.SeekOrigin.Begin);
bitmap.StreamSource = memoryStream;
bitmap.EndInit();
return bitmap;
}
public object ConvertBack(object value, Type targetType,
object parameter, CultureInfo culture)
{
return null;
}
}
}
然后需要将图像转换器作为一个资源引入XAML;
xmlns:med="clr-namespace:System.Windows.Media"
...
<ListView.Resources>
<med:ImageConverter x:Key="imageConverter" />
</ListView.Resources>
然后您可以在XAML中使用它直接绑定到图像,使用新的转换器;
<Image Source="{ Binding Path=Image, Converter={StaticResource imageConverter} }" />