I have a list of Employees that I populate a drop down datagrid with. I can search for the employees and select them, but when I do I get multiple of the same employee (as Chips). As you can see here I search for 'doe' and get one John Doe result, but two Chips after I click on it (note: I cannot delete/deselect any of the Chips):
I ran a couple queries to verify that there are no duplicates:
select COUNT(UserName) from [dbo].[v_Employees]
select COUNT(distinct UserName) from [dbo].[v_Employees]
What's interesting is that the same thing happens on the regular DropDown component, but only if I perform a search (filter). If I just pick an employee with the regular DropDown component without performing a search everything works as expected.