use EL expression to call a method in a ViewModel.

answered 2012-11-17 20:07:00 +0800

sarco
93 ● 6
https://github.com/sarcow...

I'm trying to do this one, but the method doesn't receive anything.

<tabpanel forEach="${vm.set}">
       <grid model="@load(vm.getEvents(each.key))">
       ......

If you get a example, please post it.

Thanks you.

answered 2012-11-18 01:49:32 +0800

rdgrimes
735 ● 7

updated 2012-11-18 02:06:32 +0800

Sorry, but I think you guys have seriously misread this. The concat does not allow you to pass parameters to a viewmodel method in the @load binding.

The concat() is merely an EL syntax for concatenating two strings. See any JSP EL guide. So, in your case, I believe it will concat the returned string from vm.foo with 'postfix' to dynamically determine a vm method to call in the @load binding. It will end up calling a method, in the viewmodel, whose name is the concatenation of (some-string-value-returned-from-foo + postfix) upon @load. So, I'm not sure where you gathered that the concat() was a way to pass parameters. Again, remember that any such reference to @load(vm.someProperty) is really telling the bindcomposer to look in the viewmodel for a method getSomeProperty() and retrieve those contents. Getters do NOT accept arguments in the traditional sense of getters.

Try this link for a better idea of how to handle things when it comes to tabs.

answered 2012-11-19 08:12:00 +0800

khcyt
216 ● 1 ● 1

Hi Senthilchettyin

here are an example of how to call methods of the view model with parameters (look for listbox model = "@ bind (vm.getLM (each))") and also read some of the resulting problems.

Kai