In Master mashup, getting "no data to display" in grid from an infotable service .

@PK_10315615 ,

What version of ThingWorx?
Can you provide a sample mashup or a screen capture of what you are trying to accomplish?
What is the source of the data you are going to display?
When you define the "Things" which are part of your project. You will have a mashup Thing which will contain the visual interface. You will also have other Things which are a description of what data you have and how it is stored or accessed. You can also create services which are part of the Thing. These services are JavaScript which can use pre defined functions based on the template  which you selected for creating the "Thing" or functions which you write to create or update data. The information can be stored in a property or supplied as an input to a widget such as the Grid widget.

Provide a little more structure and I might be able to provide you a starting point