Steps to map classes using ValueInjector - collections

Question

Quickly getting to the problem the mapping does not occur for the following code. Could someone explain why? or what i should do for the mapping to occur?
var parent = new Parent();
parent.ChildOne.Add(new ChildOne() { Name = "Child One" });
parent.ChildTwo.Add(new ChildTwo() { Name = "Child Two" });
AnotherParent anotherParent = new AnotherParent();
anotherParent.InjectFrom<LoopValueInjection>(parent);
Required Class are below
Anothher child one
public class AnotherChildOne
{
public string Name { get; set; }
}
Another child two
public class AnotherChildTwo
{
public string Name { get; set; }
}
Another Parent
public class AnotherParent
{
public ICollection<AnotherChildOne> ChildOne { get; set; }
public ICollection<AnotherChildTwo> ChildTwo { get; set; }
public AnotherParent()
{
ChildOne = new Collection<AnotherChildOne>();
ChildTwo = new Collection<AnotherChildTwo>();
}
}
Child Two
public class ChildTwo
{
public string Name { get; set; }
}
Child One
public class ChildOne
{
public string Name { get; set; }
}
Parent
public class Parent
{
public ICollection<ChildOne> ChildOne { get; set; }
public ICollection<ChildTwo> ChildTwo { get; set; }
public Parent()
{
ChildOne = new Collection<ChildOne>();
ChildTwo = new Collection<ChildTwo>();
}
}

Answer 1

I believe by default Value Injector will only inject the properties with the same name of the same type. You can get around this using a tweak to the CloneInjection sample from the Value Injector documentation as described here with this code:
public class CloneInjection : ConventionInjection
{
protected override bool Match(ConventionInfo c)
{
return c.SourceProp.Name == c.TargetProp.Name && c.SourceProp.Value != null;
}
protected override object SetValue(ConventionInfo c)
{
//for value types and string just return the value as is
if (c.SourceProp.Type.IsValueType || c.SourceProp.Type == typeof(string)
|| c.TargetProp.Type.IsValueType || c.TargetProp.Type == typeof(string))
return c.SourceProp.Value;
//handle arrays
if (c.SourceProp.Type.IsArray)
{
var arr = c.SourceProp.Value as Array;
var clone = Activator.CreateInstance(c.TargetProp.Type, arr.Length) as Array;
for (int index = 0; index < arr.Length; index++)
{
var a = arr.GetValue(index);
if (a.GetType().IsValueType || a.GetType() == typeof(string)) continue;
clone.SetValue(Activator.CreateInstance(c.TargetProp.Type.GetElementType()).InjectFrom<CloneInjection>(a), index);
}
return clone;
}
if (c.SourceProp.Type.IsGenericType)
{
//handle IEnumerable<> also ICollection<> IList<> List<>
if (c.SourceProp.Type.GetGenericTypeDefinition().GetInterfaces().Contains(typeof(IEnumerable)))
{
var t = c.TargetProp.Type.GetGenericArguments()[0];
if (t.IsValueType || t == typeof(string)) return c.SourceProp.Value;
var tlist = typeof(List<>).MakeGenericType(t);
var list = Activator.CreateInstance(tlist);
var addMethod = tlist.GetMethod("Add");
foreach (var o in c.SourceProp.Value as IEnumerable)
{
var e = Activator.CreateInstance(t).InjectFrom<CloneInjection>(o);
addMethod.Invoke(list, new[] { e }); // in 4.0 you can use dynamic and just do list.Add(e);
}
return list;
}
//unhandled generic type, you could also return null or throw
return c.SourceProp.Value;
}
//for simple object types create a new instace and apply the clone injection on it
return Activator.CreateInstance(c.TargetProp.Type)
.InjectFrom<CloneInjection>(c.SourceProp.Value);
}
}
If you include the above CloneInjection code you will want to do this:
anotherParent.InjectFrom<CloneInjection>(parent);
instead of:
anotherParent.InjectFrom<LoopValueInjection>(parent);