Hey Guy,
2009/8/31 Guy Deleeuw <[email protected]>:
> Hello,
>
> Ext::ComboBox.currentIndex() crash.
> With this combobox I use :
> Ext::ComboBox* m_cbbExtContact = new Ext::ComboBox(0);
> m_cbbExtContact->setTextSize(60);
> m_cbbExtContact->setModel(m_pModel);
> m_cbbExtContact->setModelColumn(1);
>
> m_cbbExtContact->setEditable(true);
> m_cbbExtContact->setQueryDelay(2);
> m_cbbExtContact->setMinQueryLength(1);
Perhaps you see a crash because currentIndex() may be -1: when the
user has added an entry by editing, this entry is not added to the
underlying model. When this entry is the currently selected entry,
currentIndex() will be -1, and currentText() will return the value.
At least the test case in attachment works well for me, if not for
you, can you modify it to reproduce the crash ?
Regards,
koen
#include <Wt/WApplication>
#include <Wt/WPushButton>
#include <Wt/Ext/ComboBox>
#include <Wt/WStandardItem>
#include <Wt/WStandardItemModel>
using namespace Wt;
class TestApp : public WApplication
{
public:
TestApp(const WEnvironment& env) : WApplication(env)
{
WStandardItemModel *m_pModel = new WStandardItemModel(5, 5);
for (int i = 0; i < 5; ++i) {
m_pModel->setItem(i, 1, new WStandardItem
("Value" + boost::lexical_cast<std::string>(i)));
}
m_cbbExtContact = new Ext::ComboBox(root());
m_cbbExtContact->setTextSize(60);
m_cbbExtContact->setModel(m_pModel);
m_cbbExtContact->setModelColumn(1);
m_cbbExtContact->setEditable(true);
m_cbbExtContact->setQueryDelay(2);
int i = m_cbbExtContact->currentIndex();
WPushButton *b = new WPushButton("Read it", root());
b->clicked().connect(this, &TestApp::foo);
}
void foo() {
std::cerr << m_cbbExtContact->currentIndex() << " "
<< m_cbbExtContact->currentText() << std::endl;
}
private:
Ext::ComboBox *m_cbbExtContact;
};
WApplication *createApplication(const WEnvironment& env)
{
TestApp *app = new TestApp(env);
return app;
}
int main(int argc, char *argv[])
{
return WRun(argc, argv, &createApplication);
}
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