如何分配日期，在Windows Phone 8.1 C＃中从上一页或窗体导航到日期选择器

Question

I want to assign a date,which date is navigated from another page/form to date picker in my current page. When I looked at internet I got the answer like.

datepicker1.value = DateTime.Today;

But I am not getting datepicker. value

I'm using Visual Studio 2013, and developing apps for Windows Phone 8.1.

I am retrieving date from database in one form*(consider as first page) and sending to another form(secondary page). In secondary page I need to display date in secondary page, which is coming from first page.

Answer 1

You can use like this in your SecondPage

var date= FirstPage.datepicker1.value

I am assuming that FirstPage is the namespace of the Page from where you want assign the value. namespace SomeThing { class Program { public partial class SecondPage: PhoneApplicationPage { var date= FirstPage.datepicker1.value } } }

EDIT Ok I got your point. You can set the datePicker value in **OnNavigatedTo ** function. And in the backend

protected override void OnNavigatedTo(NavigationEventArgs e)

{

    datePicker1.Date = DateTimeOffset.Now;
    datePicker1.MinYear = DateTimeOffset.Now;

}

You have to pass the Date as a parameter to the second page. Consider date is the parameter, Now in First page you can write

protected override void OnNavigatedFrom(NavigationEventArgs e)
    {
        PhoneApplicationService.Current.State["Text"] = date;
    }

And in your Second Page you have to receive the date and assign it to datePicker1.

protected override void OnNavigatedTo(NavigationEventArgs e)
{
    datePicker1.Date=(DateTime)PhoneApplicationService.Current.State["Text"]
}