Bug 202121 setDateFormat does not working
If you want to set date format of the table column style you have to use setDateTimeFormatCategory and setDateTimeFormat instead of setDateFormatCategory and setDateFormat. If you will try to use setDateFormatCategory in the first case in xml-source you will see that your style contains dateFormat property. This property is not working at all, in the second case in xml-source you will see that your style contains dateTimeFormat property. I think it will be better if the result of setDateTimeFormatCategory and setDateFormatCategory will be the same.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/css/dom/AbstractStyle.java
}
	public void setBorder( String border ) throws DOMException
	{
		
	}
	public String getBorderCollapse( )
	{
		
		return null;
	}
	public void setBorderCollapse( String borderCollapse ) throws DOMException
	{
		
	}
	public String getBorderColor( )
	{
		
		return null;
	}
	public void setBorderColor( String borderColor ) throws DOMException
	{
		
	}
	public String getBorderSpacing( )
	{
		
		return null;
	}
	public void setBorderSpacing( String borderSpacing ) throws DOMException
	{