I am doing something like the answer on: Set object property using reflection
Dynam开发者_JAVA技巧ically setting the value of a object property. I have a function wrapping this sort of functionality and it works great. However, I want to make it so that it looks at the property type to see if it is some sort of collection and add the value/object to the collection.
I tried to do something like: if (object is ICollection)
The problem is that VS2010 wants me to type the collection which I dont know how to do programatically.
So what I want to do is something like the following given subject
is the target object and value
is value to be set:
public void setPropertyOnObject(object subject, string Name, object value)
{
var property = subject.GetType().GetProperty(Name)
// -- if property is collection ??
var collection = property.GetValue(subject, null);
collection.add(value)
// -- if propert is not a collection
property.SetValue(subject, value, null);
}
You can dynamically check a typed collection (and add an item to it) thusly:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
Object subject = new HasList();
Object value = "Woop";
PropertyInfo property = subject.GetType().GetProperty("MyList", BindingFlags.GetProperty | BindingFlags.Instance | BindingFlags.Public);
var genericType = typeof (ICollection<>).MakeGenericType(new[] {value.GetType()});
if (genericType.IsAssignableFrom(property.PropertyType))
genericType.GetMethod("Add").Invoke(property.GetValue(subject, null), new[] { value });
}
}
internal class HasList
{
public List<String> MyList { get; private set; }
public HasList()
{
MyList = new List<string>();
}
}
}
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