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How can I set a List<foo> field of an object with the value of List<dynamic>

I have been trying to set some field values of specific objects in C#.
For other reasons I need to construct a List of values from a string then I want to assign this to a field in an object.
The way I indicate the value type of the list is something like this in string
name:type{listItemName:listItemType{listItemValue}}
This list can be of any type, so it is undetermined until we reach conversion.
I am using
List<dynamic> ldy = new List<dynamic>();
foreach (string listElement in listElements)
{
if (listElement == "") continue;
Type leDataType = GetDataType(listElement);
string leData = GetDataRaw(listElement);
var leDynamic = ConstructDataObject(leDataType, leData, listElement);
ldy.Add(leDynamic);
}
Which ends up with the correct data and with the correct data type when I enquire, however when I am trying to use the resulting ldy list and assign it to a field, of course it acts as a List<object>
thus not allowing me to assign.
Finally so, I am using field.SetValue(targetObject, ldy); to assign the value to the field.
The error message I am getting is
ArgumentException: Object of type 'System.Collections.Generic.List`1[System.Object]' cannot be converted to type 'System.Collections.Generic.List`1[System.Int32]'.
Which to be clear, I do understand and I do understand why, however I dont really see how could I solve this issue, not by solving this nor by changing the fundaments of my code design.
Please help!

As #juharr suggested I have searched for solutions to do this with reflection.
Here is my solution:
private static IList GetTypedList(Type t)
{
var listType = typeof(List<>);
var constructedListType = listType.MakeGenericType(t);
var instance = Activator.CreateInstance(constructedListType);
return (IList)instance;
}

dynamic.ToString() unexpected behaviour

I'm wondering how does this code work:
dynamic dynaString = 2;
string b = dynaString.ToString();
When this one is not working:
var list = new List<dynamic>();
var liststring = new List<string>();
liststring = list.Select(x => x.ToString()).ToList();
I know I can add Cast<string> after Select statement but that does not explain that behaviour. Why does ToString() on dynamic element work different when called on dynamic variable declared in code than on dynamic variable taken from list in LINQ.
I've looked into method signature of Select and it's:
My guess is that x here is a dynamic variable, so it should behave just like dynaString, but it's not. Intellisense is suggesting me that this x.ToString() returns string:
Anyone got experience with dynamics in C# and can explain me that?
I've also tried this code:
var list = new List<dynamic>();
var liststring = new List<string>();
foreach (dynamic a in list)
{
liststring.Add(a.ToString());
}
It compiles as expected, because again the a is declared as dynamic in foreach statement.

According to dynamic type docs:
The dynamic type indicates that use of the variable and references to its members bypass compile-time type checking. Instead, these operations are resolved at run time.
Type dynamic behaves like type object in most circumstances. In particular, any non-null expression can be converted to the dynamic type. The dynamic type differs from object in that operations that contain expressions of type dynamic are not resolved or type checked by the compiler.
There is no way to infer type from usage in case type checking and/or resolution is bypassed at compile-time.
If you omit generic type parameter it will by default return dynamic type even you call ToString() method. The reason is that any non-null expression can be assigned to dynamic. As dynamic is source, it will be also the result of Select(x => x.ToString()) method call.
On the other hand you can assign dynamic object to string variable as you are calling ToString() which returns string instance.

C# Reflection Invoke - Returns Generic Object { Type } - Need Type

I have a stored procedure call interface that I'm using to handle results from stored procedures with entity (using Translate method to translate the results of our stored procedure into entities that can be tracked and used in EF as normal)
Here's the basic code...
List<object> current = new List<object>();
object item = ((Type)currenttype.Current).GetConstructor(System.Type.EmptyTypes).Invoke(new object[0]);
ObjectContext actualContext = ((IObjectContextAdapter)context).ObjectContext;
string className = "";
EntityContainer container = null;
string setName = "";
className = ((Type)currenttype.Current).ToString();
container = actualContext.MetadataWorkspace.GetEntityContainer(((IObjectContextAdapter)context).ObjectContext.DefaultContainerName, DataSpace.CSpace);
setName = (from meta in container.BaseEntitySets
where meta.ElementType.FullName == className
select meta.Name).FirstOrDefault();
var t = typeof(ObjectContext).GetMethod("Translate", new Type[] { typeof(DbDataReader), typeof(string), typeof(MergeOption) }).MakeGenericMethod(item.GetType()).Invoke(actualContext, new object[] { reader, setName, MergeOption.AppendOnly });
The issue is that I can't do anything with 't' that I want, it's type is listed as
object {System.Data.Entity.Core.Objects.ObjectResult<POCOClass>}. I can't call any of the normal methods that I can normally on the ObjectResult type such as ToArray or ToList.
I need a way to convert it into System.Data.Entity.Core.Objects.ObjectResult<POCOClass>. The difference being that 't' is listed as type object first.
I cannot use any strongly typed casts because the types will change depending on the stored procedure. I've tried using the dynamic keyword instead of var for t and I've also tried using Convert.ChangeType. It never changes from the object base type. dynamic t returns this the following error:
'System.Data.Entity.Core.Objects.ObjectResult<POCOClass>' does not contain a definition for 'ToList'
Thought I know for a fact it does...
To clear up confusion, here's a watch screenshot. The first line is what's being returned, I want it to be like the second (see Type column).
Edit: might be getting closer... I added this:
var listedT = typeof(Enumerable).GetMethod("ToList").MakeGenericMethod(item.GetType()).Invoke(null, new object[] { t });
current.AddRange(listedT); // Error here...
listedT becomes a object {System.Collections.Generic.List<ReportCatalog.Models.Catalog_Reports>} and I get the error, cannot convert from object to System.Collections.Generic.IEnumerable<object>.

Since ObjectResult<T> implements also the non-generic IEnumerable interface, cast it to this type and enumerate it.
var e = (IEnumerable)t;
foreach (object o in e) {
//TODO: use o
}

Why can't I access properties of an anonymous type returned from a function via the dynamic keyword?

I have a function that returns an anonymous type like so (simplified for illustrative purposes)...
public object GetPropertyInfo()
{
return new {
PropertyName = "Foo",
Value = "Laa"
};
}
When I do this...
dynamic pi = GetPropertyInfo();
Console.WriteLine(pi);
It outputs this (the same as if I did '?pi' in the immediate window)...
{ PropertyName = "A", Value = 44 }
PropertyName: "A"
Value: 44
But if I try doing this...
string propertyName = pi.PropertyName;
...it compiles but throws a runtime exception saying
Exception thrown: 'Microsoft.CSharp.RuntimeBinder.RuntimeBinderException' in System.Core.dll
Additional information: 'object' does not contain a definition for 'PropertyName'
What gives? What am I missing here?

The problem is that anonymous types are internal, which means that you can't access their properties with dynamic property accessors from projects other than the one they were created in. The dynamic binding treats them as the closest public inherited type it knows about--object.
To fix this, you can declare a public type to represent the values you're expecting to find in your anonymous type. This is probably a good idea anyway, since you're clearly expecting to consume the returned properties in other parts of your code. Using a declared type also enables you to maintain type-safety, avoiding the need for dynamic entirely.
If you absolutely must use dynamics here, the next best option is probably to change your AssemblyInfo.cs file to make internal properties accessible to the project you're trying to access them from:
[assembly:InternalsVisibleTo("MyOtherProject")]

Edit
According to your edit. Apparently you are not required dynamic at all as there are no dynamic properties. Just create a concrete type with your predefined properties. It's better to avoid dynamic when possible anyway.
Old Answer
You need to use an ExpandoObject. Reference here.
In fact, GetPropertyInfo() should return an ExpandoObject.
dynamic foo = this.GetPropertyInfo();
string i = foo.MyPropertyName;
private ExpandoObject GetPropertyInfo()
{
dynamic obj = new ExpandoObject();
obj.PropertyName = "MyPropertyName";
obj.PropertyType = "MyPropertyType";
return obj;
}
The ExpandoObject class enables you to add and delete members of its
instances at run time and also to set and get values of these members.
This class supports dynamic binding, which enables you to use standard
syntax like sampleObject.sampleMember instead of more complex syntax
like sampleObject.GetAttribute("sampleMember").

Also, you can use System.Reflection
object D = GetPropertyInfo();
Type t = D.GetType(); // get object's type
PropertyInfo p = t.GetProperty("PropertyName"); // look up for the property:
object P = p.GetValue(D, null); // get the value
Fiddle demo

is order of field important in anonymous types automatic initialization?

I got a scenario to create the anonymous list from the anonymous types, and i achieved that using
public static List<T> MakeList<T>(T itemOftype)
{
List<T> newList = new List<T>();
return newList;
}
static void Main(string[] args)
{
//anonymos type
var xx = new
{
offsetname = x.offName,
RO = y.RO1
};
//anonymos list
var customlist = MakeList(xx);
//It throws an error because i have given the wrong order
customlist.Add(new { RO = y.RO2, offsetname = x.offName });
customlist.Add(new { RO = y.RO3, offsetname = x.offName });
//but this works
customlist.Add(new { offsetname = x.offName, RO = y.RO2 });
customlist.Add(new { offsetname = x.offName, RO = y.RO3 });
}
these are the error messages
System.Collections.Generic.List.Add(AnonymousType#1)'
has some invalid arguments
Argument
'1': cannot convert from
'AnonymousType#2' to 'AnonymousType#1'
whats the reason behind that??

Yes, it's important.
Two anonymous type initializers use the same auto-generated type if the property names and types are the same, in the same order.
The order becomes relevant when hashing; it would have been possible for the type to be generated with a consistent order for calculating a hash value, but it seems simpler to just include the property order as part of what makes a type unique.
See section 7.5.10.6 of the C# 3 spec for details. In particular:
Within the same program, two anonymous
object initializers that specify a
sequence of properties of the same
names and compile-time types in the
same order will produce instances of
the same anonymous type.

whats the reason behind that??
Suppose that order did not matter. Suppose you were on the compiler team. Describe for me the exact behaviour of an implementation of "ToString" on such an anonymous type, such that the implementation meets all user expectations.
I personally cannot come up with one, but perhaps you can.

Yes, the order of fields is significant. Same fields, different order will yield different types.
From the language specification:
"Within the same program, two anonymous object initializers that specify a sequence of properties of the same names and compile-time types in the same order will produce instances of the same anonymous type. "