在控制器视图数据的Jquery模式中显示成功/失败消息

I have a master detail screen In ASP.NET MVC, when I submit something, It instantly returns to me a grid with the inserted value via Ajax, my problem is: I want to pass a message of failure or successful via an jquery modal dialog or infobar and I can't pass a viewdata for the jquery to process It. I have a master detail screen In ASP.NET MVC, w