Does someone has an example on how to bind values from a XML document into a Grid Template using Javascript. I read in afew forums that it is possible directly, we go to convert into a different datasource. Is that right?
No, You cannot bind directly. You will need to manually create a datasource from the values in the XML document. I am not aware of any sample code showing how to take an XML document and create a datasource.
Here is how to use WinJS.List to build up datasource... you can extend this to .push your items from the XML document. You don't have to do all the group stuff for your simple Grid.