我试图使用任意字符串访问嵌套类结构的各个部分.
给出以下(设计的)类：
public class Person
{
public Address PersonsAddress { get; set; }
}
public class Adddress
{
public PhoneNumber HousePhone { get; set; }
}
public class PhoneNumber
{
public string Number { get; set; }
}
我想要从Person对象的一个实例的“PersonsAddress.HousePhone.Number”获取对象.
目前我正在使用反思来做一些简单的递归查找,但是我希望有一些忍者有更好的想法.
作为参考,这里是我开发的(crappy)方法：
private static object ObjectFromString(object basePoint,IEnumerable<string> pathToSearch)
{
var numberOfPaths = pathToSearch.Count();
if (numberOfPaths == 0)
return null;
var type = basePoint.GetType();
var properties = type.GetProperties();
var currentPath = pathToSearch.First();
var propertyInfo = properties.FirstOrDefault(prop => prop.Name == currentPath);
if (propertyInfo == null)
return null;
var property = propertyInfo.GetValue(basePoint,null);
if (numberOfPaths == 1)
return property;
return ObjectFromString(property,pathToSearch.Skip(1));
}
解决方法
您可以简单地使用标准的.NET
DataBinder.Eval Method,像这样：
object result = DataBinder.Eval(myPerson,"PersonsAddress.HousePhone.Number");