Regarding Exception Handling

I have used a service call in my application and i binded the context nodes to the UI Elements, the Function module behind the Service call throws the Exceptions i used the try and catch method to get the exceptions, but i am not able to control the exceptions generated by the system . As the context is binded to elements it throwing the exceptions because the context doesnt contain any values here (because the service call raised exception ).

If possible to handle where i need to write the catch statements

The following error text was processed in the system WLT : Context binding for property TEXT of "PERNR" cannot be resolved: Node VIEW.1.EMPLOYEE does not contain any elements

The termination type was: RABAX_STATE

The ABAP call stack was:

Method: RAISE_FOR of program CX_WDR_ADAPTER_EXCEPTION======CP

Method: RAISE_BINDING_EXCEPTION of program CL_WDR_VIEW_ELEMENT_ADAPTER===CP

Method: GET_BOUND_ELEMENT of program CL_WDR_VIEW_ELEMENT_ADAPTER===CP