Bug 157948 Default value of datetime parameter doesn't take effect
Default value of datetime parameter doesn't take effect Steps to reproduce: 1.new a report and new a parameter 2.set the parameter data type"DateTime",display type"Radio Button" and new two parameters,the display text and value of the first are "this year" and "09/05/2006 the second is "last year" and "09/05/2006" 3.preview in html Expected result: the default value takes effects Actual result: the default value doesn't take effects
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/presentation/aggregation/parameter/ScalarParameterFragment.java
{
			parameterValue = paramValueObj.toString( );
		}
		else if ( !parameter.allowNull( ) && parameter.allowBlank( ) )
		{
			parameterValue = ""; 
		}
		
		switch ( parameter.getDataType( ) )
		{
			case ParameterDefinition.TYPE_STRING :
			{
				
				
				parameterBean.setRequired( false );
				if ( parameterValue == null && !parameter.allowNull( ) )
				{
					parameterBean.setRequired( true );
				}
				else if ( parameterValue != null
						&& parameterValue.trim( ).length( ) <= 0
						&& !parameter.allowBlank( ) )
				{
					parameterBean.setRequired( true );
				}
				break;
			}
			default :
			{
				parameterBean.setRequired( paramValueObj == null );