Hi!
For a project I want to display a list of objects in an html table. I'm
using the Table component of the contrib library of Tapestry. One column
should show a formatted Date (or Calendar) object. It works fine as long as
the Date is not null. But if the database contains objects with null values
I get the following Exception:
Unable to read OGNL expression.: source is null for getProperty(null,
"tableRow")
Here is a snippet of the .page file. creationDate is a Calendar object. To
format it I get the Date with getTime() and use the format parameter of the
Insert component.
<component id="campaignTable" type="Contrib:Table">
<binding name="source" value="dataItems"/>
<binding name="columns" value="literal:name, description,
creationDate"/> </component>
<component id="creationDateFormat" type="Insert">
<binding name="value"
value="components.table.tableRow.creationDate.time"/>
<binding name="format" value="dateFormat"/> </component>
I would be happy if you could help me find a way to handle this exception.
Thanks,
Manuel
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