Bug 172431 [eclipse3.3only]BPS17-4.5 Adding Date picker to input DateTime value for Axis Scale
In Axis Scale dialog, provide a Data picker next to the input box for convenience of inputting DataTime value.
chart/org.eclipse.birt.chart.ui.extension/src/org/eclipse/birt/chart/ui/swt/wizard/format/popup/AbstractScaleSheet.java
try
		{
			
			Date dateElement = _sdf.parse( strDataElement );
			Calendar cal = Calendar.getInstance( TimeZone.getDefault( ) );
			cal.setTime( dateElement );
			return DateTimeDataElementImpl.create( cal );
		}
		catch ( ParseException e )
		{
			
			try
			{
				Number numberElement = nf.parse( strDataElement );
				return NumberDataElementImpl.create( numberElement.doubleValue( ) );
			}
			catch ( ParseException e1 )
			{
				return null;
			}
		}
	}
	protected abstract Scale getScale( );
	/**
	 * Returns the type of scale value
	 * 
	 * @return Constant value defined in <code>TextEditorComposite</code>
	 */
	protected abstract int getValueType( );
}