title: extjs 4 How too keep combobox in grid cell
body: <p>I've seen similar questions go unanswered elsewhere. I want to have a combobox in a column with two options (ASC, DEC) in it. I want it to show up in each row, or at least have its value show up when it's not selected. </p>
  
  <p>I know that its not a 'good idea' to render a combobox in each row, but in this case I know I will have a maximum of about 20 rows, so it shouldn't be a huge deal. If this can't be done I want to have the selected value from the combobox show. Currently I just have the comboboxes appearing when I click a row, which doesn't make much sense since you can't see your selection unless you are making it. What is the solution to this?</p>
  
  <p>Also, I want to get rid of the change and cancel buttons that pop up when I click a row, I just want to be able to edit the cell with the combobox, and have it automatically change/save. </p>