MV485_v125/MV485/helper/ImageExistenceToRowHeightConverter .cs

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Data;

namespace MV485.helper
{
    public class ImageExistenceToRowHeightConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            // 判断图片路径是否为空或空字符串
            string imagePath = value as string;
            if (string.IsNullOrEmpty(imagePath))
            {
                // 图片不存在，返回行高30
                return 100;
            }
            else
            {
                // 图片存在，返回行高60
                return 200;
            }
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            // 不需要实现ConvertBack
            throw new NotImplementedException();
        }
    }
}