title: Combobox inside data-aware cxgrid
body: <p>I have a data-aware cxgrid connected to a toracledataset object.</p>
  
  <p>Inside the DB is a column defined as number(1,0) to allow boolean values.</p>
  
  <p>I want to format the corresponding grid column as ComboBox to give the user the ability to choose between the two options.</p>
  
  <p>How can I cast the string inside the combobox to the integer value that will be inserted in the DB?
  I know how to do that with a regular combobox, but not inside a cxgrid</p>