/// <summary>
/// Called when the <c>TargetView</c> has just been loaded.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
public override async Task OnTargetViewLoadedAsync(object sender, EventArgs e)
{
await CompleteViewModelClosingAsync();
// Do not call base because it will create a VM. We will create the VM ourselves
//base.OnTargetControlLoaded(sender, e);
// Manually updating target control content wrapper here (not by content property changed event handler),
// because in WinRT UserControl does NOT update bindings while InitializeComponents() method is executing,
// even if the Content property was changed while InitializeComponents() running there is no triggering of a binding update.
CreateViewModelWrapper();
#if NET
if (!SkipSearchingForInfoBarMessageControl)
{
Log.Debug("Searching for an instance of the InfoBarMessageControl");
_infoBarMessageControl = TargetView.FindParentByPredicate(o => o is InfoBarMessageControl) as InfoBarMessageControl;
ApiCop.UpdateRule <UnusedFeatureApiCopRule>("UserControlLogic.InfoBarMessageControl",
rule => rule.IncreaseCount(_infoBarMessageControl != null, TargetViewType.FullName));
if (CreateWarningAndErrorValidatorForViewModel)
{
ApiCop.UpdateRule <UnusedFeatureApiCopRule>("UserControlLogic.CreateWarningAndErrorValidator",
rule => rule.IncreaseCount(_infoBarMessageControl != null, TargetViewType.FullName));
}
Log.Debug("Finished searching for an instance of the InfoBarMessageControl");
if (_infoBarMessageControl == null)
{
Log.Warning("No InfoBarMessageControl is found in the visual tree of '{0}', consider using the SkipSearchingForInfoBarMessageControl property to improve performance", GetType().Name);
}
}
else
{
Log.Debug("Skipping the search for an instance of the InfoBarMessageControl");
}
#endif
if (!CloseViewModelOnUnloaded && (ViewModel != null))
{
// Re-use view model
Log.Debug("Re-using existing view model");
}
if (ViewModel == null)
{
// Try to create view model based on data context
await UpdateDataContextToUseViewModelAsync(TargetView.DataContext);
}
if (DisableWhenNoViewModel)
{
TargetView.IsEnabled = (ViewModel != null);
}
}
