C# Manipulating Object of type T

I'm using Xmlserializer to load/save xml, as objects. What I'm trying to do is to display the object from my load-method into a combobox. I'm loading the xml file "Categories.Xml" through my load method and it returns a object of a generic type (T).

 public class XmlHandler<T> where T : class 
{

    internal XmlSerializer Xml;

    public XmlHandler()
    {

        Xml = new XmlSerializer(typeof (T));
    }

    public void SaveXml(T datatyp, string path)
    {
        using (var streamWriter = new StreamWriter(path))
        {
            Xml.Serialize(streamWriter, datatyp);
        }
    }

    public T Load(string path)
    {
        using (var streamReader = new StreamReader(path))
        {
            return Xml.Deserialize(streamReader) as T;
        }

I'm trying to use this in my CategoryService Class that looks as Follow:

 public class CategoryService
    {
        private Repository<ListOfCategories> repository = new Repository<ListOfCategories>();
        private ListOfCategories createCategories = new ListOfCategories();
       private string path = "Category.xml";

       public List<Category> setCategories(string tbCategory)
       {
           List<Category> categoryList = new List<Category>();
           var Category = new Category();

           Category.Id = new Guid();
           Category.CategoryName = tbCategory;

           categoryList.Add(Category);
           return categoryList;
       }

       public void saveCatgories(string tbCategory)
       {
           createCategories = repository.Load(path);
           repository.Save(createCategories, path);

           var newCategory = new Category()   
           {
               Id = Guid.NewGuid(),
               CategoryName =  tbCategory
           };
           createCategories.AddCategory(newCategory);
           repository.Save(createCategories, path);


       }

The following code shows you how ListOfCategories looks like.

    public class ListOfCategories : List
{
    public new Guid Id { get; set; }

    public List<Category> CategoryList { get; set; }


    public ListOfCategories()
    {
      CategoryList = new List<Category>();
    }

    public void AddCategory(Category category)
    {
        CategoryList.Add(category);
    }
}

• 
  

  I would really appreciate your help. I need to take the Loaded data (from the xmlfile using my load method), display it in a combobox (IE. there is a category class with the property Name, how do i select that Name from the Object and display it in a combobox)...

  
  


• 
  

  My Conclusion is - add the object to a list, iterate through the list, select what I want in some way and display it / do whatever I want with it...

  
  


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  Thank you for your time if you read this. This is really importand to me.