我知道有一些问题可以解决此问题,但是答案通常遵循推荐字典或参数集合的方式,在我的情况下不起作用。
我正在使用通过反射工作的库,以对具有属性的对象进行许多巧妙的操作。这适用于定义的类以及动态类。我需要进一步迈出一步,并按照以下方针做点事情:
public static object GetDynamicObject(Dictionary<string,object> properties) { var myObject = new object(); foreach (var property in properties) { //This next line obviously doesn't work... myObject.AddProperty(property.Key,property.Value); } return myObject; } public void Main() { var properties = new Dictionary<string,object>(); properties.Add("Property1",aCustomClassInstance); properties.Add("Property2","TestString2"); var myObject = GetDynamicObject(properties); //Then use them like this (or rather the plug in uses them through reflection) var customClass = myObject.Property1; var myString = myObject.Property2; }
该库可以很好地与动态变量类型配合使用,并具有手动分配的属性。但是我不知道将要预先添加多少个属性。
您是否看过ExpandoObject?
参见:http : //blogs.msdn.com/b/csharpfaq/archive/2009/10/01/dynamic-in-c-4-0-introducing- the- expandoobject.aspx
从MSDN:
通过ExpandoObject类,您可以在运行时添加和删除其实例的成员,还可以设置和获取这些成员的值。此类支持动态绑定,它使您可以使用诸如sampleObject.sampleMember之类的标准语法,而不是使用诸如sampleObject.GetAttribute(“ sampleMember”)之类的更复杂的语法。
让您做一些很酷的事情,例如:
dynamic dynObject = new ExpandoObject(); dynObject.SomeDynamicProperty = "Hello!"; dynObject.SomeDynamicAction = (msg) => { Console.WriteLine(msg); }; dynObject.SomeDynamicAction(dynObject.SomeDynamicProperty);
根据您的实际代码,您可能对以下内容更感兴趣:
public static dynamic GetDynamicObject(Dictionary<string, object> properties) { return new MyDynObject(properties); } public sealed class MyDynObject : DynamicObject { private readonly Dictionary<string, object> _properties; public MyDynObject(Dictionary<string, object> properties) { _properties = properties; } public override IEnumerable<string> GetDynamicMemberNames() { return _properties.Keys; } public override bool TryGetMember(GetMemberBinder binder, out object result) { if (_properties.ContainsKey(binder.Name)) { result = _properties[binder.Name]; return true; } else { result = null; return false; } } public override bool TrySetMember(SetMemberBinder binder, object value) { if (_properties.ContainsKey(binder.Name)) { _properties[binder.Name] = value; return true; } else { return false; } } }
这样,您只需要:
var dyn = GetDynamicObject(new Dictionary<string, object>() { {"prop1", 12}, }); Console.WriteLine(dyn.prop1); dyn.prop1 = 150;
从DynamicObject派生而来的是,您可以提出自己的策略来处理这些动态成员请求, 请注意,这里 有很多 怪物: 编译器将 无法 验证您的大量动态调用,并且您不会得到智能感知,因此只需保持记住这一点。