JavaFX 2.0 :: FXML Tableview - Displaying Data?

I have an FXML table view. And I want to assign value from an tableview create on class to FXML tableview. But at the end is not displaying data.
 
Example:
  
@FXML private TableView fxmlTable;
             private  TableView insideClassTable;
public class SomeClass
{
     public SomeClass(){
          insideClassTable = new TableView();
         //////////////////////////////////////////////////
               Filling insideClassTable with data.
         //////////////////////////////////////////////////
             fxmlTable=  insideClassTable;
               } 
// some other code and main
}
 
If I set value to fxmlTable, data are display correctly, but if assign value to insideClassTable first and then make fxmlTable=insideClassTable they are not display.