I think I finaly understood what you want
Try this:
Code: Select all
wxGrid* grid = new wxGrid( this, wxID_ANY );
grid->CreateGrid( 20, 10 );
// populate it or whatever
grid->Fit();
grid->SetMaxSize( grid->ClientToWindowSize( grid->GetVirtualSize() ) );
// [...]
verticalBoxSizer->Add( grid, 1, wxEXPAND );
// [...]