循环属性时无法评估 IList 的类型
我有一个带有属性的类。我们将此称为 TestMeCommand（见下文）。这个类有一个列表。我需要做的是循环类的属性，并识别列表。现在必须通用地构建它，因为它的代码用于验证，因此相同的代码可能需要标识 List 或 List 或其他内容。
public class TestMeCommand
{
[Range(1, Int32.MaxValue)]
public int TheInt { get; set; }
[Required]
[StringLength(50)]
public string TheString { get; set; }
[ListNotEmptyValidator]
public List<TestListItem> MyList { get; set; }
public class TestListItem
{
[Range(1, Int32.MaxValue)]
public int ListInt { get; set; }
}
}
现在的问题是我的代码看起来像这样：
foreach (var prop in this.GetType().GetProperties())
{
if (prop.PropertyType.FullName.StartsWith("System.Collections.Generic.List"))
{
IList list = prop.GetGetMethod().Invoke(this, null) as IList;
}
}
我不想将该字符串放在那里，但是如果我执行像 prop.PropertyType is IList 这样的操作，它永远不会计算为 true。我该如何修复它？
I have a class with properties on it. We will call this TestMeCommand (see below). This class has a list on it. What I need to do is loop over the properties of the class, and identify the List. Now this has to be built generically because its code for validation, so this same code might need to identify a List<int> or a List<string>, or something else.
public class TestMeCommand
{
[Range(1, Int32.MaxValue)]
public int TheInt { get; set; }
[Required]
[StringLength(50)]
public string TheString { get; set; }
[ListNotEmptyValidator]
public List<TestListItem> MyList { get; set; }
public class TestListItem
{
[Range(1, Int32.MaxValue)]
public int ListInt { get; set; }
}
}
Now the problem is that I have code that looks like this:
foreach (var prop in this.GetType().GetProperties())
{
if (prop.PropertyType.FullName.StartsWith("System.Collections.Generic.List"))
{
IList list = prop.GetGetMethod().Invoke(this, null) as IList;
}
}
I dont want to put that string in there, but if I do something like prop.PropertyType is IList it never evaluates true. How do I fix it?
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我可能会使用：
它涵盖了实现
IList的任何内容。prop.PropertyType is IList从未评估为 true 的原因是，这是询问“我的Type对象是否实现IList？”，而不是“此Type对象所表示的类型是否实现了IList？”。I might use:
which covers anything implementing
IList.The reason that
prop.PropertyType is IListnever evaluates true is that this is asking "does myTypeobject implementIList?", rather than "does the type represented by thisTypeobject implementIList?".