Re: Unable to select/click items in wxListBox

Thank you very much, Maarten! Works well!

On Friday, September 8, 2023 at 12:05:21 PM UTC+2 Maarten Bent wrote:

> Hi,
>
> I see two issues in the code you provided.
> First, you create mainPanel twice, in the initializer list and again in 
> the body of the constructor. I would remove it from the initializer list.
> I suspect the panel(s) and list are overlapping, so you are clicking on 
> the panel instead of the list.
>
> Second, the panel/sizer structure seems wrong. You are adding both the 
> panel and the listbox as children of the main frame (of 'this').
>
> I think you want the listbox as child of the panel, like this:
>
>     mainPanel = new wxPanel(this, wxID_ANY, wxDefaultPosition, wxSize(600, 
> 600));
>     s1 = new wxBoxSizer(wxVERTICAL);
>     m_tgeListBox = new wxListBox(mainPanel, wxID_ANY, wxDefaultPosition, 
> wxSize(300, 200));
>     s1->Add(m_tgeListBox, 1, wxEXPAND);
>     mainPanel->SetSizer(s1);
>
> Since you expand the listbox to fill the entire frame, you could also omit 
> the panel entirely:
>
>     s1 = new wxBoxSizer(wxVERTICAL);
>     m_tgeListBox = new wxListBox(this, wxID_ANY, wxDefaultPosition, 
> wxSize(300, 200));
>     s1->Add(m_tgeListBox, 1, wxEXPAND);
>     SetSizer(s1);
>
> Maarten
>
>
>
> On 8-9-2023 07:21, Eva L wrote:
>
> Hello. I'm having trouble selecting and/or clicking items in wxListBox 
> only if it's part of a sizer. I basically want the wxListBox to expand with 
> the window. 
>
> Here is the code:
>
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> *MainFrame::MainFrame(const wxString& title)     : wxFrame(nullptr, 
> wxID_ANY, title),       mainPanel(new wxPanel(this, wxID_ANY, 
> wxDefaultPosition, wxSize(300, 200))) { Bind(wxEVT_CLOSE_WINDOW, 
> &MainFrame::OnClose, this); SetFont(GetFont().Scale(1.5)); mainPanel = new 
> wxPanel(this, wxID_ANY, wxDefaultPosition, wxSize(600, 600)); s1 = new 
> wxBoxSizer(wxVERTICAL); m_tgeListBox = new wxListBox(this, wxID_ANY, 
> wxDefaultPosition, wxSize(300, 200)); s1->Add(m_tgeListBox, 1, wxEXPAND); 
> SetSizerAndFit(s1); }*
>
> Why is this happening and how can it be solved?
>
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