Hi,
Server side modifications don't trigger signals. If you want that anyway,
you need to emit the signal after making the change:
lin1->changed().connect(std::bind([=] (){lin2->setText(lin1->text());
lin2->changed().emit()}));
BR,
Wim.
2013/12/5 Muhammad Nasser Al-Noimi <mnno...@gmail.com>
> Hi,
>
> I'm trying to create a cascaded text changes using WLineEdit, but I
> noticed that method setText does not emit changed() signal. Is this normal
> behavior? What is the fastest way to achieve that?
>
> I wrote a simple snapshot to describe my point:
>
> #include <Wt/WApplication>
> #include <Wt/WLineEdit>
> #include <Wt/WPushButton>
>
> using namespace Wt;
>
> class MainApplication: public WApplication {
> public:
> MainApplication(const WEnvironment& env);
>
> private:
>
> };
>
> MainApplication::MainApplication(const WEnvironment& env)
> : WApplication(env)
> {
> WLineEdit* lin1 = new WLineEdit(root());
> WLineEdit* lin2 = new WLineEdit(root());
> WLineEdit* lin3 = new WLineEdit(root());
> WLineEdit* lin4 = new WLineEdit(root());
> WPushButton* btn = new WPushButton("Click Me", root());
>
> lin1->changed().connect(std::bind([=]
> (){lin2->setText(lin1->text());}));
> lin2->changed().connect(std::bind([=]
> (){lin3->setText(lin2->text());}));
> lin3->changed().connect(std::bind([=]
> (){lin4->setText(lin3->text());}));
> btn->clicked().connect(std::bind([=] (){lin1->setText("Hello");}));
> }
>
> WApplication *createApplication(const WEnvironment& env)
> {
> return new MainApplication(env);
> }
>
> int main(int argc, char **argv)
> {
> char* params[7] = {argv[0], "--docroot", ".", "--http-address",
> "0.0.0.0", "--http-port", "8081"};
> return WRun(7, params, &createApplication);
> }
>
> Regards,
> Nasser Al-Noimi
>
>
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