public void SwitchProviders(ILaunchSettingsUIProvider oldProvider)
{
// Get the old custom control and disconnect from notifications
if (oldProvider?.CustomUI?.DataContext is INotifyPropertyChanged context)
{
context.PropertyChanged -= OnCustomUIStateChanged;
if (context is INotifyDataErrorInfo notifyDataErrorInfo)
{
notifyDataErrorInfo.ErrorsChanged -= OnCustomUIErrorsChanged;
}
}
// Now hook into the current providers notifications. We do that after having set the profile on the provider
// so that we don't get notifications while the control is initializing. Note that this is likely the first time the
// custom control is asked for and we want to call it and have it created prior to setting the active profile
UserControl customControl = ActiveProvider?.CustomUI;
if (customControl != null)
{
ActiveProvider.ProfileSelected(CurrentLaunchSettings);
context = customControl.DataContext as INotifyPropertyChanged;
if (context != null)
{
context.PropertyChanged += OnCustomUIStateChanged;
}
if (context is INotifyDataErrorInfo notifyDataErrorInfo)
{
notifyDataErrorInfo.ErrorsChanged += OnCustomUIErrorsChanged;
}
}
}
private bool ActiveProviderSupportsProperty(string propertyName)
{
ILaunchSettingsUIProvider activeProvider = ActiveProvider;
return(activeProvider?.ShouldEnableProperty(propertyName) ?? false);
}