private async Task AfterDialog(IDialogContext context, IAwaitable <object> result)
{
var messageHandled = await result;
ProductModel.ClearContextData(context);
context.Done <object>(null);
}
public async Task StartAsync(IDialogContext context)
{
await context.PostAsync("OK, let's start again.");
ProductModel.ClearContextData(context);
context.Done <object>(null);
}