Not possible to call getRowCount() in override of isVisible() for DataView
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Key: WICKET-2012
URL: https://issues.apache.org/jira/browse/WICKET-2012
Project: Wicket
Issue Type: Bug
Components: wicket
Affects Versions: 1.3.5
Reporter: Peter Thomas
I am using a DataView and I was trying to override isVisible() and use
"this.getRowCount()" to decide if the table should be rendered or not. But
this results in a stack overflow because DataView#getRowCount() internally
calls isVisibleInHierarchy().
The use case is trying to hide a table header row when there are no search
results. The implementation of getRowCount() in AbstractPageableView (Wicket
1.3.5) starts like this:
if (!isVisibleInHierarchy())
{
return 0;
}
Was wondering - is that part really necessary? I wanted to use an enclosure
but that also results in isVisible() calls all over the place. I could work
around this for now by using a separate web markup container for hiding the
table header row.
My message to the mailing list:
http://www.nabble.com/trouble-controlling-visibility-of-dataview-td21265778.html#a21265778
I just searched Nabble and found this had come up before:
http://www.nabble.com/enclosures-and-dataview-td14258879.html#a14258879
Let me know if you need a quickstart or more information.
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