Hello. I'd like to know how to implement virtual scrolling for my ComboBox. I'm using OData for ComboBox's DataSource.
I've tried to use the example (https://demos.telerik.com/kendo-ui/combobox/virtualization) - however i'm stuck. I don't know how to implement a Value Mapper in my WebAPI. In this example it's easy to get the index of some value, which is not loaded yet, because there are no any filters/ordering there. But in my case, i'm using the same OData method for different DataSources, but with different filters/ordering.
So, how can i get the index of some value, if i don't know which filter/ordering was used for the DataSource?