在.NET中实现动态列系统的最佳设计

public class DynamicColumn
{
    public string Name { get; set; }
    public dynamic Value { get; set; }
}

public static void AddDynamicColumn(object obj, string columnName, dynamic value)
{
    Type type = obj.GetType();
    PropertyInfo property = type.GetProperty(columnName);
    if (property == null)
    {
        property = type.GetProperty("Item");
        if (property != null && property.PropertyType.IsGenericType)
        {
            Type[] genericArguments = property.PropertyType.GetGenericArguments();
            if (genericArguments.Length == 2)
            {
                Type dictionaryType = typeof(Dictionary<,>).MakeGenericType(genericArguments);
                dynamic dictionary = Activator.CreateInstance(dictionaryType);
                dictionary[columnName] = value;
                property.SetValue(obj, dictionary);
            }
        }
    }
    else
    {
        property.SetValue(obj, value);
    }
}

dynamic obj = new ExpandoObject();
AddDynamicColumn(obj, "Column1", "Value1");
AddDynamicColumn(obj, "Column2", 123);