After upgrading to 9.1.5, my combobox within a gridview (EditForm) template which I am populating dynamically "onEdit" stopped displaying the data.

The funny part is that the datasource shows "10+" rows, but after the databind is executed when the edit template is rendered, the combobox acts as if it is disabled (no items).

I guess there is no attach feature here. So I will just paste my code behind.  When creating a grid to try out, just drag and drop a grid view, a combo box to the edit template and a combobox outside the gridview. 

Code Behind:

 public partial class TestPage : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

            ASPxGridView1.DataSource = Subject.GetData();
            ASPxGridView1.DataBind();
           
           ASPxComboBox1.DataSource =  ReferenceData.GetData();
           ASPxComboBox1.TextField = "Description";
           ASPxComboBox1.ValueField = "LookUpCode";
           ASPxComboBox1.DataBind();
        }

        protected void ASPxGridView1_StartRowEditing(object sender, DevExpress.Web.Data.ASPxStartRowEditingEventArgs e)
        {
            ASPxComboBox ddRegion = ASPxGridView1.FindEditFormTemplateControl("ASPxComboBox2") as ASPxComboBox;
            ddRegion.DataSource = ReferenceData.GetData();
            ddRegion.TextField = "Description";
            ddRegion.ValueField = "LookUpCode";
            ddRegion.DataBind();
        }
    }

    public class ReferenceData
    {
        private string description;
        private string lookupcode;

        public string Description { get { return description; } set { description = value; } }
        public string LookupCode { get { return lookupcode; } set { lookupcode = value; } }

        internal static List<ReferenceData> GetData()
        {
            ReferenceData refData;
            List<ReferenceData> refDataList = new List<ReferenceData>();

            for (int i = 0; i < 10; i++)
            {
                refData = new ReferenceData();
                refData.Description = "description" + i.ToString();
                refData.LookupCode = i.ToString();
                refDataList.Add(refData);
            }
            return refDataList;
        }
    }

    public class Subject
    {
        private string subjectId;

        public string SubjectID { get { return subjectId; } set { subjectId = value; } }
       

        internal static List<Subject> GetData()
        {
            Subject subject;
            List<Subject> subjectList = new List<Subject>();

            for (int i = 0; i < 10; i++)
            {
                subject = new Subject();
               
                subject.SubjectID = i.ToString();
                subjectList.Add(subject);
            }
            return subjectList;
        }
    }