(New to version 4.2) The IfEmpty tag is a quick way to display content only if there is no value in a column. In other words if the value is an empty string ("") or a Null value, then the content of the IfEmpty tag will be rendered out to the page.
<xmod:IfEmpty
Value="string">
...Content Goes Here...
</xmod:IfEmpty>
<xmod:IfEmpty Value='[[MyField]]'>...</xmod:IfEmpty><div>
<table width="100%">
<tr>
<td width="250" valign="top">
<!-- EMPLOYEES TEMPLATE -->
<xmod:Template Id="Employees">
<DetailDataSource CommandText="SELECT * FROM XMPDemo_Employees WHERE EmployeeId = @EmpID">
<Parameter Name="EmployeeId" Alias="EmpID" />
</DetailDataSource>
<DetailTemplate>
<h1>Employee Profile</h1>
<h3>[[FirstName]] [[LastName]]</h3>
<xmod:IfEmpty Value='[[imageUrl]]'>
<img src="/images/NoImage.png" />
</xmod:IfEmpty>
<xmod:IfNotEmpty Value='[[imageUrl]]'>
<img src="[[imageUrl]] />
</xmod:IfNotEmpty>
<h4>Biography:</h4>
<div>[[Bio]]</div>
<xmod:MetaTags>
<Title>Employee Profile for [[FirstName]] [[LastName]]</Title>
<Keywords append="true">[[FirstName]],[[LastName]]</Keywords>
</xmod:MetaTags>
</DetailTemplate>
</xmod:Template>
</td>
</tr>
</table>
</div>