76 lines
2.6 KiB
C#
76 lines
2.6 KiB
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 BDU.Converters
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{
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public class HexToDecimalConverter : 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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// 将模型中的十进制值转换为十六进制字符串显示
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if (value != null)
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{
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if (value.GetType() == typeof(int) && value is int intValue)
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{
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return $"0x{intValue:X}";
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}
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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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// 将用户输入的十六进制字符串（如 "0x13A"）转换回十进制整数
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if (value is string stringValue && !string.IsNullOrEmpty(stringValue))
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{
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// 移除可能存在的空格
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stringValue = stringValue.Trim();
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// 检查是否以 "0x" 或 "0X" 开头
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if (stringValue.StartsWith("0x", StringComparison.OrdinalIgnoreCase)&& stringValue.Length>2)
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{
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try
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{
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// 移除 "0x" 前缀，然后解析为整数
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var hexString = stringValue.Substring(2);
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return System.Convert.ToInt32(hexString, 16);
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}
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catch (FormatException)
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{
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// 如果格式错误，返回 null 或者抛出异常，取决于您的需求
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// 这里我们返回 null，让绑定系统保持原值或触发验证
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return Binding.DoNothing;
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}
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catch (OverflowException)
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{
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return Binding.DoNothing;
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}
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}
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else
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{
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// 如果没有 "0x" 前缀，则尝试按十进制解析
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try
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{
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return System.Convert.ToInt32(stringValue);
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}
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catch (FormatException)
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{
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return Binding.DoNothing;
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}
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catch (OverflowException)
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{
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return Binding.DoNothing;
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}
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}
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}
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return Binding.DoNothing;
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}
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}
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}
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