populate dropdownlist from xml file

I have created a simple xml file that includes a small list of values to populate a dropdown list.  I can map to the xml file read the data in the xml file and bind it to the dropdownlist.

Here is my question.  I have a class library that I have created a dataset (.xsd) file with tableadapters that make calls to the database.

So, is there a way to add the dataset that pulls info from my xml file into the dataset in my class library?

I'm not sure how to do this?  I want to keep all the data extraction seperate from the application.  The way I have it now is the page code-behind:

protected void BindList()
    {
        string path = MapPath("~/products.xml");
        DataSet dSet = new DataSet();
        dSet.ReadXml(path);

        chklst.DataSource = dSet;
        chklst.DataTextField = "name";
        chklst.DataValueField = "productid";
        chklst.DataBind();
    }

Is it possible to move the dataset portion into the class library?  If so, how?

Basically, what I'd like to have in the code-behind is the following:

GetEmployeeTableAdapter employee = new GetEmployeeTableAdapter();
ddlEmployee.DataSource = employee.GetEmployee();
ddlEmployee.DataTextField = "customer_id";
ddlEmployee.DataValueField = "recordID";
ddlEmployee.DataBind();
ddlEmployee.Items.Insert(0, new ListItem("Please select...", ""));

I just don't know how to create the dataset in the class library that reads from the xml.  The table adapters only seem to connect to a database.

Is what I want to accomplish possible?

Thanks for any help.