Bug 190727 [regression]Default value issue when switch report parameter from textbox to listbox.[0705]
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ParameterDialog.java
controlTypeChooser.setText( getInputControlDisplayName( ) );
			}
			else
			{
				int index = controlTypeChooser.indexOf( originalSelection );
				if ( index == -1 )
				{
					
					controlTypeChooser.select( 0 );
					return true;
				}
				controlTypeChooser.setText( originalSelection );
			}
		}
		return false;
	}
	private void makeUniqueAndValid( )
	{
		for ( Iterator iter = choiceList.iterator( ); iter.hasNext( ); )
		{
			SelectionChoice choice = (SelectionChoice) iter.next( );
			if ( isValidValue( choice.getValue( ) ) != null
					|| containValue( choice, choice.getValue( ), COLUMN_VALUE ) )
			{
				iter.remove( );
			}
		}
	}
	private void changeControlType( )
	{