public static TTask WithBusyIndicator <TTask>([NotNull] this TTask task, [NotNull] IViewModel viewModel,
object message = null, bool?handleException = null)
where TTask : Task
{
Should.NotBeNull(task, nameof(task));
Should.NotBeNull(viewModel, nameof(viewModel));
if (handleException == null)
{
handleException = ApplicationSettings.HandleTaskExceptionBusyIndicator;
}
if (task.IsCompleted)
{
if (handleException.Value)
{
ToolkitExtensions.TryHandleTaskException(task, viewModel, viewModel.GetIocContainer(true));
}
return(task);
}
var token = viewModel.BeginBusy(message);
task.TryExecuteSynchronously(t =>
{
token.Dispose();
if (handleException.Value)
{
ToolkitExtensions.TryHandleTaskException(t, viewModel, viewModel.GetIocContainer(true));
}
});
return(task);
}