How do I test if Dataset is empty or not

Question

I want to use the Spry:states, with the Spry:State="ready"
div, holding a couple of Spy:if's, to display content, based on
whether my dataset is empty or not. If it is empty I want to show a
message. If the dataset has data, I will show my dynamic table.
What is the syntax used to test whether I have data in my
dataset? When Spry recieves a Dataset with empty values in the
tags(XML) it still assumes the dataset is ready, so I need to test
further, the contents.
I have tried the following variations to no avail:
<div spry:if="insSearchResults==0"> //testing if it is
empty
<div spry:if="insSearchResults!=0"> //testing if it is
not empty
<div spry:if="insSearchResults==''"> //testing if it is
empty
<div spry:if="insSearchResults!=''"> //testing if it is
not empty
<div spry:if="insSearchResults=0"> //testing if it is
empty
<div spry:if="insSearchResults>0"> //testing if it
is not empty
<div spry:if="insSearchResults=='null'"> //testing if
it is empty
<div spry:if="insSearchResults!='null'"> //testing if
it is not empty

Answer 1

I ended up just using one spry:if on a TR element, and the
leaving the other TR element as is, as it would either be empty or
filled with dynamic data. The Spry:if would only show if there wre
no pagecounts inthe dataset. Below is a snippet of my code:
<tr spry:if="insSearchResultsPaged.getPageCount()==0"
align="left" >
<td colspan="4" align="center"><br
/><h5>No search results for that particular search. Please
refine your search.</h5></td>
</tr>
<tr align="left" spry:repeat="insSearchResultsPaged"
class="{ds_EvenOddRow}">
<td>{insSearchResultsPaged::LastModifiedDateWithoutTime}</td>
<td><a
href="{Properties/Property/Value}">{insSearchResultsPaged::Title}</a></td>
<td>{insSearchResultsPaged::Type} \
{insSearchResultsPaged::Category} \
{insSearchResultsPaged::Group}</a></td>
<td><img
src="../..{insSearchResultsPaged::IconUrl}" /></td>
</tr>