Table Selection Parameter

Dear all,

i am a bit confused and need help. While trying to create a Widget with the Widget Foundation Tools I have this effect:

SAP Funktion: BAPI_MATERIAL_GETLIST

Selection Parameter inside SAP (i.e):

Table: MATNRSELECTION

Fields: SIGN, OPTION, MATNR_LOW, MATNR_HIGH

Value: 'I', 'CP', '*' , ' '

Using SE37 and Testframe I do get results using this.

Now in Eclipse I can add the BAPI, map the Parameters and now the Problem, There is no field "SIGN" and "OPTION" in the Table description of the Bapi-View (RFC-View). All the other fields from Table "MATNRSELECTION" are shown

This is the controller Code to pass the import table:

Controller.refresh = function(){
    Controller.showMain_View({"MATNRSELECTION":
	{	
		"SIGN": "I",
		"OPTION": "CP",
		"MATNR_LOW": "*"
	},
		"MAXROWS": "50"
	});
}

So I do not get any result. Maybe this is caused by the not existing "SIGN" and "OPTION" fields in the RFC-View?!

Any idea?

Kind regards

Roman