Grid Column

How to add a string field to the Grid Column. i need to inupt a string value manually in the column for grid property but its showing me a dropdown list. these are properties from two different elements   result is :   but i want it be like 
1 answers

It looks like you have the wrong widget in the field you want. If you are getting multiple of the drop downs, I would replace them with text linked to the field if you do not want editing or to a text-box if you want to be able to edit. If you are getting one dropdown/reference selector, I would replace it with a list view/template grid that is linked by context to the entity that you want to display, with a column for the field you want to display and nothing else (the choice between list view and data grid depends on the styling/functionality you expect from this). Let me know if you have any questions.