28 lines
811 B
C#
28 lines
811 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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namespace _29WxOrderWpf.Converters
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{
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public class ValueMinus24Converter : 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 double width)
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{
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return Math.Max(0, width - 24); // 确保宽度/高度不会变成负数
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}
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return value;
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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(); // 因为这是单向绑定，反向转换不实现
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}
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}
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}
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