Hi Sasha,
Thank you for contacting Syncfusion support.
We suspect your requirement is to use IList collection for the specific Property. If yes, then please use “CustomEditorCollection” property which helps to bind list collection to the specific property of PropertyGrid. We have prepared a simple sample in which we have bound the IList<int> collection to the property “Params” and IList<string> collection to the property “Name” using ComboBox and it can be downloaded from the below location.
Please check with the above sample and let us know if we have misunderstood your query.
Regards,
Keerthana