I have a WinForm on which I drag an XPCollection component. A separate Class Library project contains all my XPO objects. This class library is referenced by the WinForm application.

The ObjectClassInfo of the XPCollection component allows me to choose which type of object the collection contains. The dropdown in the property editor does not list my XPO objects from the class library. How can I make them available in the dropdown?

        private void txtTextbox_KeyPress(object sender, EventArgs e)
        {
            //Trap the enter key
            string info = e.KeyChar.ToString();
            if (info == "\r")
            {
                //Your code here

                //This signals the event that you have managed the outcome
                e.Handled = true;

            }
        }

using System;
using Csla;
using System.Data.SqlClient;
using System.Data;
using Csla.Data;
 
namespace CSLASample.NameList
{
    [Serializable]
    public class FindItemCollection : NameValueListBase<string, string>
    {
        #region Factory Methods
 
        private static FindItemCollection _list;
 
        public static FindItemCollection GetFindItemCollection()
        {
            if (_list == null)
                _list = DataPortal.Fetch<FindItemCollection>();
            return _list;
        }
 
        public static void InvalidateCache()
        {
            _list = null;
        }
 
        private FindItemCollection()
        { /* require use of factory methods */ }
 
        #endregion
 
        #region Data Access
 
        private void DataPortal_Fetch()
        {
            RaiseListChangedEvents = false;
            IsReadOnly = false;
            //Load Values
            using (SqlConnection cn = new SqlConnection(Database.Connection))
            {
                cn.Open();
                using (SqlCommand cm = cn.CreateCommand())
                {
                    cm.CommandType = CommandType.StoredProcedure;
                    cm.CommandText = "getFindItemList";
                    using (SafeDataReader dr = new SafeDataReader(cm.ExecuteReader()))
                    {
                        while (dr.Read())
                        {
                            Add(new NameValueListBase<string, string>.NameValuePair(
                                dr.GetString("IMA_ItemID"), dr.GetString("IMA_ItemName")));
                        }
                    }
                }
            }
            IsReadOnly = true;
            RaiseListChangedEvents = true;
        }
 
        #endregion
    }
}