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Fix crash in propgrid sample, see #18537

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This commit is contained in:
Paul Cornett 2019-10-22 19:51:50 -07:00
parent ab33227578
commit ffac936882
1 changed files with 26 additions and 22 deletions
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48
samples/propgrid/propgrid.cpp
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@ -2985,21 +2985,23 @@ void FormMain::OnSetPropertyValue( wxCommandEvent& WXUNUSED(event) )
void FormMain::OnInsertChoice( wxCommandEvent& WXUNUSED(event) )
{
wxPropertyGrid* pg = m_pPropGridManager->GetGrid();
wxPGProperty* selected = pg->GetSelection();
const wxPGChoices& choices = selected->GetChoices();
// Insert new choice to the center of list
if (selected)
{
const wxPGChoices& choices = selected->GetChoices();
if ( choices.IsOk() )
{
int pos = choices.GetCount() / 2;
selected->InsertChoice("New Choice", pos);
}
else
{
::wxMessageBox("First select a property with some choices.");
if ( choices.IsOk() )
{
// Insert new choice to the center of list
int pos = choices.GetCount() / 2;
selected->InsertChoice("New Choice", pos);
return;
}
}
wxMessageBox("First select a property with some choices.");
}
// -----------------------------------------------------------------------
@ -3007,21 +3009,23 @@ void FormMain::OnInsertChoice( wxCommandEvent& WXUNUSED(event) )
void FormMain::OnDeleteChoice( wxCommandEvent& WXUNUSED(event) )
{
wxPropertyGrid* pg = m_pPropGridManager->GetGrid();
wxPGProperty* selected = pg->GetSelection();
const wxPGChoices& choices = selected->GetChoices();
// Deletes choice from the center of list
if (selected)
{
const wxPGChoices& choices = selected->GetChoices();
if ( choices.IsOk() )
{
int pos = choices.GetCount() / 2;
selected->DeleteChoice(pos);
}
else
{
::wxMessageBox("First select a property with some choices.");
if ( choices.IsOk() )
{
// Deletes choice from the center of list
int pos = choices.GetCount() / 2;
selected->DeleteChoice(pos);
return;
}
}
wxMessageBox("First select a property with some choices.");
}
// -----------------------------------------------------------------------