Hi Moo
I believe you are new to SAPUI5.
When we bindElement to a view, we do not bind URL. instead we bind to property of a model.
Please at least go thru this
http://help.sap.de/saphelp_uiaddon10/helpdata/en/91/f0f3cd6f4d1014b6dd926db0e91070/content.htm
Thanks
-D