External hyperlink - CellInstance problem

Hello all, 
 
I am trying to set a column value to an external hyperlink (i.e. a URL on the web). I know that to do this, you insert the following script in the onRender event of the data element: 
 
<pre class='_prettyXprint _lang-auto _linenums:0'>
var myaction = this.createAction();
myaction.setHyperlink(this.getValue(),"_blank");
this.action = myaction;</pre>
 
However, when I do this, the following exception is thrown 
 
Cell (id = 97): 
+ There are errors evaluating script "var myaction = this.createAction(); 
myaction.setHyperlink(this.getValue(),"_blank"); 
this.action = myaction;": 
TypeError: Cannot find function createAction in object org.eclipse.birt.report.engine.script.internal.instance.CellInstance@78097b. (/report/body/table[@id="83"]/detail/row[@id="92"]/cell[@id="97"]/method[@name="onRender"]#1) 
 
Looking at the source code, I can see that org.eclipse.birt.report.engine.script.internal.instance.CellInstance has no createAction() method, but that org.eclipse.birt.report.engine.script.internal.instance.DataItemInstance does. 
 
I have a second report which succesfully creates the URL using the above approach, and that works fine - the difference is that in the broken report, my URL string is in a CellInstance, whilst in the 'good' report, it's in a DataItemInstance. I can't work out what I've done differently in the broken report. Can anyone please tell me how I can change a CellInstance to a DataItemInstance? 
 
Thank you, 
 
Clive

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Comments

thuston

You clicked in the wrong place?
The Cell is the container for the DataItem.

An alternative in the designer would be to simply select the DataItem and look at its properties.
There is a Hyperlink tab that you can provide a Javascript expression that will serve as your destination URL.

cvh

Thanks for your reply, Thuston. I decided to delete the table and recreate it, and all was fine after that. ^_^