public class YourClass
{
    //Add below line in your class
    public object this[string propertyName] => GetType().GetProperty(propertyName)?.GetValue(this, null);
    public string SampleProperty { get; set; }
}

//And you can get value of any property like this.
var value = YourClass["SampleProperty"];

如果我用Ed s的密码，我就

“ReflectionExtensions。由于其保护级别，GetProperty(Type, string)'不可访问

似乎GetProperty()在Xamarin.Forms中不可用。TargetFrameworkProfile是我的便携式类库中的Profile7。NET Framework 4.5, Windows 8, ASP。NET Core 1.0, Xamarin。Android, Xamarin的。Xamarin的iOS。iOS经典)。

现在我找到了一个可行的解决方案:

using System.Linq;
using System.Reflection;

public static object GetPropValue(object source, string propertyName)
{
    var property = source.GetType().GetRuntimeProperties().FirstOrDefault(p => string.Equals(p.Name, propertyName, StringComparison.OrdinalIgnoreCase));
    return property?.GetValue(source);
}

源

看看Heleonix。反映图书馆。你可以通过路径获取/设置/调用成员，或者创建一个getter/setter (lambda编译成委托)，这比反射更快。例如:

var success = Reflector.Get(DateTime.Now, null, "Date.Year", out int value);

或者只创建一个getter并缓存以供重用(这样性能更好，但如果中间成员为空可能会抛出NullReferenceException):

var getter = Reflector.CreateGetter<DateTime, int>("Date.Year", typeof(DateTime));
getter(DateTime.Now);

或者如果你想创建一个List<Action<object, object>>的不同getter，只需要为已编译的委托指定基本类型(类型转换将被添加到已编译的lambdas中):

var getter = Reflector.CreateGetter<object, object>("Date.Year", typeof(DateTime));
getter(DateTime.Now);

jheddings的回答很好。我想通过允许引用聚集的数组或对象的集合来改进它，这样propertyName可以是property1.property2[X].property3:

    public static object GetPropertyValue(object srcobj, string propertyName)
    {
        if (srcobj == null)
            return null;

        object obj = srcobj;

        // Split property name to parts (propertyName could be hierarchical, like obj.subobj.subobj.property
        string[] propertyNameParts = propertyName.Split('.');

        foreach (string propertyNamePart in propertyNameParts)
        {
            if (obj == null)    return null;

            // propertyNamePart could contain reference to specific 
            // element (by index) inside a collection
            if (!propertyNamePart.Contains("["))
            {
                PropertyInfo pi = obj.GetType().GetProperty(propertyNamePart);
                if (pi == null) return null;
                obj = pi.GetValue(obj, null);
            }
            else
            {   // propertyNamePart is areference to specific element 
                // (by index) inside a collection
                // like AggregatedCollection[123]
                //   get collection name and element index
                int indexStart = propertyNamePart.IndexOf("[")+1;
                string collectionPropertyName = propertyNamePart.Substring(0, indexStart-1);
                int collectionElementIndex = Int32.Parse(propertyNamePart.Substring(indexStart, propertyNamePart.Length-indexStart-1));
                //   get collection object
                PropertyInfo pi = obj.GetType().GetProperty(collectionPropertyName);
                if (pi == null) return null;
                object unknownCollection = pi.GetValue(obj, null);
                //   try to process the collection as array
                if (unknownCollection.GetType().IsArray)
                {
                    object[] collectionAsArray = unknownCollection as object[];
                    obj = collectionAsArray[collectionElementIndex];
                }
                else
                {
                    //   try to process the collection as IList
                    System.Collections.IList collectionAsList = unknownCollection as System.Collections.IList;
                    if (collectionAsList != null)
                    {
                        obj = collectionAsList[collectionElementIndex];
                    }
                    else
                    {
                        // ??? Unsupported collection type
                    }
                }
            }
        }

        return obj;
    }

捷径....

var a = new Test { Id = 1 , Name = "A" , date = DateTime.Now};
var b = new Test { Id = 1 , Name = "AXXX", date = DateTime.Now };

var compare = string.Join("",a.GetType().GetProperties().Select(x => x.GetValue(a)).ToArray())==
              string.Join("",b.GetType().GetProperties().Select(x => x.GetValue(b)).ToArray());

当你想要遍历对象中的所有属性，然后使用属性的每个值时，必须使用这段代码:

foreach (var property in request.GetType().GetProperties())
{
    var valueOfProperty = property.GetValue(properties, null);
}