SunlightAggregationTerminal/Converters/StringToImageConverter.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.Globalization;
using Microsoft.Maui.Controls;

namespace SunlightAggregationTerminal.Converters
{
    public class StringToImageConverter: IValueConverter
    {
        public object Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
        {
            if (value !=null)
            {
                // 根据字符串内容返回对应的图片路径
                // 确保你的 Resources/Raw 或 Resources/Images 目录下有这些图片
                if (value.ToString() == "252") return ImageSource.FromFile("sc252rb.png");
                else if (value.ToString() == "252-2T") return ImageSource.FromFile("sc2522t.png");
                else if (value.ToString() == "252RB") return ImageSource.FromFile("sc252rb.png");
                else if (value.ToString() == "252RDRM") return ImageSource.FromFile("sc252rmrd.png");
                else if (value.ToString() == "242W") return ImageSource.FromFile("sc242w.png");
                else if (value.ToString() == "302") return ImageSource.FromFile("sc302.png");
                else if (value.ToString() == "303") return ImageSource.FromFile("sc303.png");
                else if (value.ToString() == "303PDW") return ImageSource.FromFile("sc303pdw.png");
                else return ImageSource.FromFile("sunlightlogo.png");
            }

            // 如果值为空或类型不对，返回默认值或 null
            return ImageSource.FromFile("sunlightlogo.png");
        }

        public object ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
        {
            // 通常图片转回字符串在 UI 上很少用到，可以抛出异常或留空
            throw new NotImplementedException();
        }
    }
}