Call Dynamic Table values Onselect from listItems - sapui5

Question

I would like to know if possible to get dynamic table values onSelect from listItems.
controller.js
onPress : function(oEvent){
var oSelectedItem = oEvent.getSource();
var oContext = oSelectedItem.getBindingContext("invoice");
var sPath = oContext.getPath();
var oListItem= this.getView().byId("BoM");
oListItem.bindItems({
path : "invoice>/ProductHeadSet('12345')/ProductHead2BOM",
template : new sap.m.ColumnListItem({
cells: [
new sap.m.Text({
text: "{invoice>Material}"
}),
new sap.m.Text({
text: "{invoice>Component}"
}),
new sap.m.Text({
text: "{invoice>Brand}"
})
]
})
});
}
});
Above is my controller, when i make onPress, i could receive the values from "12345". But when i try to make an dynamic onPress by removing (12345)"invoice>/ProductHeadSet/ProductHead2BOM"". It throws me an error like this "The request URI is invalid. The ProductHeadSet segment refers to an entity set and not to a single entity".
Thanks and Regards.

Answer 1

Your answer is right there
"The request URI is invalid. The ProductHeadSet segment refers to an entity set and not to a single entity".
Int the below code, the number within the brackets help identify which index in the array should be bound to the list.
invoice>/ProductHeadSet('12345')/ProductHead2BOM Without the number, you are trying to bind the entire array to oListItem.
EDIT
This is a little difficult to answer without seeing the model and bindings, But instead of doing path : "invoice>/ProductHeadSet('12345')/ProductHead2BOM"
Do
path : "invoice>"+sPath+"/ProductHead2BOM"