Bug 118644 Hint for Date Time Parameters
The hint you give for date time parameters (Please enter date ... pattern: MM/DD/YYYY ....) is only true if the date is unformatted. If you apply a format, you must enter it according to it. So it's quite confusing!
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ParameterDialog.java
}
	protected boolean initDialog( )
	{
		Assert.isNotNull( inputParameter );
		nameEditor.setText( inputParameter.getName( ) );
		if ( inputParameter.getDisplayName( ) != null )
		{
			promptTextEditor.setText( inputParameter.getDisplayName( ) );
		}
		helpTextEditor.setText( UIUtil.convertToGUIString( inputParameter.getHelpText( ) ) );
		if ( inputParameter.getValueType( )
				.equals( DesignChoiceConstants.PARAM_VALUE_TYPE_STATIC ) )
		{
			staticRadio.setSelection( true );
			for ( Iterator iter = inputParameter.getPropertyHandle( ScalarParameterHandle.SELECTION_LIST_PROP )
					.iterator( ); iter.hasNext( ); )
			{
				SelectionChoiceHandle choiceHandle = (SelectionChoiceHandle) iter.next( );
				choiceList.add( choiceHandle.getStructure( ) );
			}
		}
		else
		{
			dynamicRadio.setSelection( true );
		}
		if ( isStatic( )
				&& !DesignChoiceConstants.PARAM_CONTROL_TEXT_BOX.equals( inputParameter.getControlType( ) )
				&& ( DesignChoiceConstants.PARAM_TYPE_DATETIME.equals( inputParameter.getDataType( ) ) || DesignChoiceConstants.PARAM_TYPE_STRING.equals( inputParameter.getDataType( ) ) ) )
		{
			defaultValue = removeQuoteString( inputParameter.getDefaultValue( ) );