30 lines
980 B
C#
30 lines
980 B
C#
using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Data;
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using System.Windows.Media.Imaging;
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namespace _29WxOrderWpf.Converters
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{
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public class ImageUrlToBitmapImageConverter : IValueConverter
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{
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public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
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{
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if (value is string url && Uri.IsWellFormedUriString(url, UriKind.Absolute))
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{
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return new BitmapImage(new Uri(url));
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//return Task.Run(() => new BitmapImage(new Uri(url))); // 使用 Task.Run 来异步加载图片。
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}
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return null;
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}
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public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
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{
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throw new NotImplementedException(); // 不需要反向转换，所以不实现。
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}
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}
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}
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