https://URL/data/CustomerGroups?$filter=CustomerGroupId eq '10'
https://URL/data/ResourceRequitionLines?filter=SFReqId eq '777787'
https://URL/data/ResourceRequitionLines?$filter=SFReqId eq @title&@title='777787'
This blog is for Dynamics AX (AXAPTA) Developers,this will help you for your development issues. This site contains some Microsoft Dynamics AX X++ Codes for use in your day to day use.
https://URL/data/CustomerGroups?$filter=CustomerGroupId eq '10'
https://URL/data/ResourceRequitionLines?filter=SFReqId eq '777787'
https://URL/data/ResourceRequitionLines?$filter=SFReqId eq @title&@title='777787'
The below examle is to add the form -Data source level adding display method and assigning to form design control.