wxDataViewCtrl with an expander column, hiding the ">" if the item has no children?

[Tony Kennedy]

Hi all,

I've got a wxDataViewCtrl. Works perfectly, some of the entries do not have child nodes though, and if possible, I'd like to hide the ">" symbol.

I've tried a custom renderer, no joy. Does anyone know if this is possible?

Thanks in advance,

Tony.

[Vadim Zeitlin]

On Thu, 13 Feb 2025 00:41:55 -0800 (PST) Tony Kennedy wrote:

TK> Hi all,
TK>
TK> I've got a wxDataViewCtrl. Works perfectly, some of the entries do not have
TK> child nodes though, and if possible, I'd like to hide the ">" symbol.

If an item doesn't have children, as indicated by the model IsContainer()
function returning false, it shouldn't have the expander and if you see it,
it would be a bug. In this case, as usual, please check if you can
reproduce it in the sample and report it, mentioning the wx version and
platform you use.

Regards,
VZ

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TT-Solutions: wxWidgets consultancy and technical support
https://www.tt-solutions.com/

[Tony Kennedy]

Ahh, I'll test then, it's probably my error.

[Tony Kennedy]

Thanks for the pointer. All works well if I check the size of the child nodes during IsContainer.

bool IsContainer() const
{
    return m_bContainer && m_children.size() > 0;
}