Answers to: How to implement Primefaces TreeTable - Selection (CheckboxTreeNode) in Axon Ivy 7.0.1?

Answer by wesing

wesing — Tue, 31 Jul 2018 02:13:36 -0400

Hi Reguel, I found the problem and it was due to declaring selected nodes as TreeNode instead of TreeNode[] in the data class. hence, I created managed bean with TreeNode[] as the selectedNodes. By the way, I also realise we cannot declare Array in the data class. I have tried using List <treenode> but it still cause the same conversion error. Anyway, Thanks for the help.

Comment by wesing on wesing's question

wesing — Mon, 30 Jul 2018 09:12:09 -0400

Unfortunately, I am already using 'Data' class of HTML Dialog.

Comment by Reguel Wermelinger on wesing's question

Reguel Wermelinger — Mon, 30 Jul 2018 07:55:16 -0400

That can happen if you hold static references or singleton like constructs that provide the model. I guess that right now you are holding the model in managed bean as outlined in the sample of Primefaces. Then you could get rid of the problems by storing the data in the 'Data' Class of the Html Dialog.

It would help if you have an easy example project to show your problem.

Comment by wesing on wesing's question

wesing — Mon, 30 Jul 2018 05:42:43 -0400

Thanks Reguel.

For my project, I need to use the TreeDataTable (checkboxnode) which is not available in the above-mentioned demos.

How can I resolve the exception that I am getting in my earlier post? If it is really due to conflicting JAR files, how can fix the problem with different class loaders loading the same class?

Comment by Reguel Wermelinger on wesing's question

Reguel Wermelinger — Mon, 30 Jul 2018 04:44:41 -0400

There are some related demos available in the HtmlDialogDemos project.

See File > Import > Axon.ivy > Ivy Sample Projects > Html Dialog Demos

In there: are DataTable and EditableDataTable samples.