Hi Ryan,
Well, its possible to populate the Dropdown box with the Level members using GetLevelByUniqueName method of CurrentCubeSchema in OlapDataManager. This method expects the UniqueName of required Level. For your reference, we have created a sample in which a Dropdown box is populated with the Product Members and then the Grid will be sliced based on the selected Product. Please download the sample here,
http://www.syncfusion.com/uploads/redirect.aspx?&team=support&file=OlapGridSlicer426095063.zipPlace the sample in the installed location of Syncfusion Essential Studio Samples which is usually installed in,
Windows XP: C:\Syncfusion\BI\WPF\OlapGrid.WPF\Samples
Windows 7/Vista: C:\Users\
\AppData\Local\Syncfusion\EssentialStudio\8.3.0.21\BI\WPF\OlapGrid.WPF\Samples
Please feel free to contact us for further reference.
Thanks
Dwaragesh M.B.