Entity framework EF6-在DbCommandTreeInterceptor中获取DbUpdateCommandTree的实体

我试图在截取DbUpdateCommand树时获取实体/类的“NotMapped”属性的值

我已经查看了各种元数据，但是我无法从CommandTree中找到实体的“链接”，所以不幸的是我被卡住了

有可能吗

public class SomeEntity
{
    public int ID { get; set; }

    [NotMapped]
    public int SomeUnmappedProperty { get; set; }
}

public class CommandTreeInterceptor : IDbCommandTreeInterceptor
{
    public void TreeCreated(DbCommandTreeInterceptionContext ctx)
    {
        if (ctx.OriginalResult.DataSpace == DataSpace.SSpace)
        {
            var updateCommand = ctx.OriginalResult as DbUpdateCommandTree;
            if (updateCommand != null)
            {
                // I would like to get a value of a specific property here.
                // Pseudo code
                var val = updateCommand.Entity.GetPropertyValue("SomeUnmappedProperty") as int;
            }
        }
    }
}