I have 1 combobox in layout, 1 select component and 1 datasource (mdx over mondrianJndi)
Here my mdx query

with member [Measures].[Name] as '[Year].CurrentMember.UniqueName' select TopCount( filter({Descendants([Year].[All Years] ,[Year].[Year])}, not isempty(([Year].CurrentMember)) ) , 50) on ROWS, 
 {[Measures].[Name]} on Columns 
 from [Department Cube]

My query return a list of year have data (include current year)
At this time, I have to wait data loaded then set the value of combobox to the current year by js resource. How can I set default value is current year to the combobox in layout with out wait the data loaded ?