Passing class objects as arguments in Windows 8 App and receive them on click event

Question

The objects passed as arguments are only received an Navigation event. I want to receive them on Click Event,what should I use instead of Parameter??

void App1::MainPage::btuN_Click(Platform::Object^ sender,Windows::UI::Xaml::RoutedEventArgs^ e)
{
Variables^ data = (Variables^)e->OriginalSource;
if (data->sNotf!=nullptr)
    Frame->Navigate(TypeName(BlankPage3::typeid), data);
}

I used OriginalSource, but it didn't work. Would any one help me? Thanks in Advance!

Answer 1

Hi Waqas Ahmed Ansari,

Actually, why you need to receive the object by button action ? 

You can receive the object by navigation event and then access the desired functionality on click event through the object that you already received by navigation event.

Answer 2

Hi,

I tested this on my side, but cannot reproduce this issue.

oid App3::MainPage::Button_Click(Platform::Object^ sender, Windows::UI::Xaml::RoutedEventArgs^ e)
{
	Object^ data=e->OriginalSource;
	//Variables^ data = (Variables^)e->OriginalSource;
if (data!=nullptr)
    Frame->Navigate(TypeName(BlankPage::typeid), data);

}


void BlankPage::OnNavigatedTo(NavigationEventArgs^ e)
{
	//(void) e;	// Unused parameter
	Object^ data=e->Parameter;
}

And based on your codes, you pass a data to another page. If you want to pass value in different pages, please follow this thread.
http://social.msdn.microsoft.com/Forums/en-US/winappswithcsharp/thread/8cb42356-82bc-4d77-9bbc-ae186990cfd5/

Best regards,
Jesse

---

Jesse Jiang
MSDN Community Support | Feedback to us
Develop and promote your apps in Windows Store
Please remember to mark the replies as answers if they help and unmark them if they provide no help.

Answer 3

The page, on which I passed object and receive on OnNavigatedTo event, is to be accessed by another page as well. So it gives an error whenever I navigate from a page from which I am not interested to pass an object. That's the problem, Sir!

Answer 4

The page, on which I passed object and receive on OnNavigatedTo event, is to be accessed by another page as well. So it gives an error whenever I navigate from a page from which I am not interested to pass an object. That's the problem, Sir!

Answer 5

Hi,

In this situation, I would suggest you to store the value in local settings instead of pass the value between pages. In this way, different pages can access the data.
http://msdn.microsoft.com/en-us/library/windows/apps/xaml/Hh700361(v=win.10).aspx

Best regards,
Jesse

---

Jesse Jiang
MSDN Community Support | Feedback to us
Develop and promote your apps in Windows Store
Please remember to mark the replies as answers if they help and unmark them if they provide no help.

Answer 6

A big thanks to all, I am very grateful, Sir!