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
{
				choices = new String[4];
			}
		}
		else
		{
			choices = new String[2];
		}
		if ( controlTypeChooser.getItemCount( ) != choices.length )
		{
			String originalSelection = controlTypeChooser.getText( );
			if ( isStatic( ) )
			{
				if ( DesignChoiceConstants.PARAM_TYPE_BOOLEAN.equals( type ) )
				{
					choices[0] = controlType.findChoice( DesignChoiceConstants.PARAM_CONTROL_CHECK_BOX )
							.getDisplayName( );
				}
				else
				{
					choices[0] = controlType.findChoice( DesignChoiceConstants.PARAM_CONTROL_TEXT_BOX )
							.getDisplayName( );
					choices[1] = DISPLAY_NAME_CONTROL_LIST;
				}
				choices[choices.length - 2] = DISPLAY_NAME_CONTROL_COMBO;
				choices[choices.length - 1] = controlType.findChoice( DesignChoiceConstants.PARAM_CONTROL_RADIO_BUTTON )
						.getDisplayName( );
			}
			else
			{