/// <summary>
/// Starts an asynchronous data portal operation to
/// execute a command object.
/// </summary>
/// <typeparam name="T">
/// Type of object to execute.
/// </typeparam>
/// <param name="obj">
/// Reference to the object to execute.
/// </param>
/// <param name="callback">
/// Reference to method that will handle the
/// asynchronous callback when the operation
/// is complete.
/// </param>
/// <param name="userState">User state object.</param>
public static void BeginExecute <T>(T obj, EventHandler <DataPortalResult <T> > callback, object userState) where T : IMobileObject
{
var dp = new DataPortal <T>();
dp.ExecuteCompleted += callback;
dp.BeginExecute(obj, userState);
}
