Bug 207250 Check blank value for datetime type parameter from url.[0002][0705]
Description: Check blank value for datetime type parameter from url. Build number:2.3.0.v20071023 Steps to reproduce: 1. New a datetime parameter mydt,listbox, tick off isRequired. 2. Preview in external browser and add "&dt=" in url, press enter. Expected result: Error message to indicate blank value isn't allowed for this parameter. Actual result: No error message and blank value is accepted. I tried to new a jsp and use <birt:paramDef> to pass the blank value and the blank value is accepted,too. Error log:n/a
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/ViewerAttributeBean.java
}
				if ( valueObj instanceof List )
				{
					
					List values = (List) valueObj;
					for ( int i = 0; i < values.size( ); i++ )
					{
						paramValue = DataUtil.getDisplayValue( values.get( i ) );
						values.set( i, paramValue );
					}
					params.put( paramName, values );
				}
				else
				{
					
					paramValue = DataUtil.getDisplayValue( valueObj );
					params.put( paramName, paramValue );
				}
			}
		}
		return params;
	}
	/**
	 * get parsed parameters as string.
	 * 
	 * @param parsedParameters
	 *            Map
	 * @param parameterList
	 *            Collection
	 * @param request