Im使用帶有變量appbar的pivot控件。 正如我所看到的,appbar鏈接到app.xaml.cs中的一個資源,您可以在其中放置按鈕及其方法的信息。它看起來像這樣:如何使用app.xaml.cs中MainPage中的方法和變量appbar樞軸
<shell:ApplicationBar x:Key="AppBar1" IsVisible="True" IsMenuEnabled="False">
<shell:ApplicationBarIconButton IconUri="/Images/iconos/appbar.places.png" Text="TEXT" Click="ApplicationBarIconButton_Click11" />
<shell:ApplicationBarIconButton IconUri="/Images/iconos/appbar.calendar.month.png" Text="TEXT" Click="ApplicationBarIconButton_Click12" />
<shell:ApplicationBarIconButton IconUri="/Images/iconos/appbar.star.png" Text="TEXT" Click="ApplicationBarIconButton_Click13" />
<shell:ApplicationBarIconButton IconUri="/Images/iconos/appbar.people.multiple.png" Text="TEXT" Click="ApplicationBarIconButton_Click14" />
</shell:ApplicationBar>
<shell:ApplicationBar x:Key="AppBar2" IsVisible="True" IsMenuEnabled="False">
<shell:ApplicationBarIconButton IconUri="/Images/iconos/appbar.warning.circle.png" Text="TEXT" Click="ApplicationBarIconButton_Click21" />
<shell:ApplicationBarIconButton IconUri="/Images/iconos/appbar.qr.png" Text="TEXT" Click="ApplicationBarIconButton_Click22" />
</shell:ApplicationBar>
<shell:ApplicationBar x:Key="AppBar3" IsVisible="True" IsMenuEnabled="False">
<shell:ApplicationBarIconButton IconUri="/Images/iconos/appbar.add.png" Text="TEXT" Click="ApplicationBarIconButton_Click31" />
<shell:ApplicationBarIconButton IconUri="/Images/iconos/appbar.message.png" Text="TEXT" Click="ApplicationBarIconButton_Click32" />
<shell:ApplicationBarIconButton IconUri="/Images/iconos/appbar.email.png" Text="TEXT" Click="ApplicationBarIconButton_Click33" />
<shell:ApplicationBarIconButton IconUri="/Images/iconos/appbar.warning.circle.png" Text="TEXT" Click="ApplicationBarIconButton_Click34" />
</shell:ApplicationBar>
每個diferent按鈕有一個方法,實際上是他們的一個是誰導航到另一個部分工作正常:
private void ApplicationBarIconButton_Click11(object sender, EventArgs e)
{
(Application.Current.RootVisual as PhoneApplicationFrame).Navigate(new Uri("/seccmapa/localeslist.xaml", UriKind.Relative));
}
但現在我想這個按鈕之一調用主頁的方法,我想是這樣的:
private void ApplicationBarIconButton_Click51(object sender, EventArgs e)
{
((MainPage)App.Current.RootVisual).cambioperfil();
}
而在該的MainPage方法是:
public async void cambioperfil()
{
objetoslistas.setprofileinput paquete = new objetoslistas.setprofileinput();
paquete.nickName = nombre.Text;
paquete.statusMessage = status.Text;
paquete.isMen = isMen;
paquete.birthDate = Fecha_nacimiento.Value.ToString();
if (Visibilidad.IsChecked == true)
{
paquete.mapVisibility = true;
}
else
{
paquete.mapVisibility = false;
}
Uri url = new Uri("url");
string respuesta = await metodosJson.jsonPOST(url, paquete);
}
但是這給了MI和異常:
{System.InvalidCastException: Unable to cast object of type 'Microsoft.Phone.Controls.PhoneApplicationFrame' to type 'X.MainPage'
任何想法?
謝謝,這工作:((的MainPage)(((System.Windows.Controls.ContentControl)(App.RootFrame))的含量))cambioperfil( ); – Mulflar