Binding root object and child collection to GridView / RadGridView MVVM

Question

I have an object with a child collection of objects that represent attributes. I want to display this in a GridView in a denormalized format, as below:

Item tshirt = new Item("My Airwolf T-Shirt");
tshirt.Attributes.Add("Color", "Blue");
tshirt.Attributes.Add("Size", "M");
tshirt.Attributes.Add("Condition", "Tatty");

I want this to appear in the GridView in this manner:

It must adhere to the following rules:

• The attributes will be dynamic, 0 to many.
• Each object in the collection will have the same attributes (i.e. in this case they will all have Color/Size/Condition), although the attributes in the collection as a whole may change dynamically.
• I'm using MVVM and databinding, but happy to create columns in the code behind.

Answer 1

I've made some progress with this...

It seems a solution is to use an IValueProvider. This question has a very thorough answer for a similar situation.