This week's book giveaway is in the Reactive Progamming forum. We're giving away four copies of Reactive Streams in Java: Concurrency with RxJava, Reactor, and Akka Streams and have Adam Davis on-line! See this thread for details.
I am creating a table in Wicket. I am adding the columns to the table using PropertyColumn.
Is there any way to group few of the columns in the table into one single column with a a common header label?
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