How to check if a node is avaliable?

[nitin403]

HI! to all.

 

I have a few Question.

 

I am using XML as my datasource in iReport.

I have band in my report which I want to print only when a node in datasource is presence.

For examples let following be the datasource

<A>

<B>"sdfsf"</B>

</A>

 

So I want the band to print only when /A/B is available

How do I do this.

Thanks for your help in advance.