IRegionMemberLifetime GetViewOrDataContextLifeTime(object view)
{
return(view switch
{
IRegionMemberLifetime regionLifetime => regionLifetime,
FrameworkElement fe => fe.DataContext as IRegionMemberLifetime,
_ => null
});
private static bool ShouldKeepAlive(object inactiveView)
{
IRegionMemberLifetime lifetime = GetItemOrContextLifetime(inactiveView);
if (lifetime != null)
{
return(lifetime.KeepAlive);
}
RegionMemberLifetimeAttribute lifetimeAttribute = GetItemOrContextLifetimeAttribute(inactiveView);
if (lifetimeAttribute != null)
{
return(lifetimeAttribute.KeepAlive);
}
return(true);
}
private static bool ShouldKeepAlive(object inactiveView)
{
IRegionMemberLifetime lifetime = MvvmHelpers.GetImplementerFromViewOrViewModel <IRegionMemberLifetime>(inactiveView);
if (lifetime != null)
{
return(lifetime.KeepAlive);
}
RegionMemberLifetimeAttribute lifetimeAttribute = GetItemOrContextLifetimeAttribute(inactiveView);
if (lifetimeAttribute != null)
{
return(lifetimeAttribute.KeepAlive);
}
return(true);
}
