c# – Lambda Expression`x => x.Property`变为`x =>

public class Data
{
    public int TestInt { get; set; }
    public bool TestBool { get; set; }
    public string TestString { get; set; }

    public Data() { TestInt = 10; TestBool = true; TestString = "test"; }
}

并且是一种扩展方法

public static void Method<T>(this T item,params Expression<Func<T,object>>[] properties)
{
    /* Some stuff */   
}

我这样用

Data data = new Data();
data.Method(x => x.TestInt,x => x.TestBool,x => x.TestString);

我的方法< T>确实收到3个属性,但它稍微改为：

properties[0] = x => Convert(x.TestId);
properties[1] = x => Convert(x.TestBool);
properties[2] = x => x.TestString;

如您所见,TestString部分未更改.我尝试将我的属性更改为params Expression< Func< T,bool>> []和params Expression< Func< T,int>> []并且只传递相应的参数,它工作正常.我理解问题来自转换为对象,但我无法弄明白.