I have been following your tour of DevForce Silverlight, in Part 4(Fix UI Problem) since their is no sample in VB, i converted your C# code to vb;
mQuery.ExecuteAsync(
Sub(op) op.Results.ForEach(Sub(Emps) Employees.Add(Emps)))
CurrEmployee = Employees.FirstOrDefault()
RaisePropertyChanged(
"CurrEmployee")
the result is it doesn't go the the first record, you have to press the next button, in order to go the next record.