c# - 回滚期间自定义操作异常

Question

在自定义操作中，我重写了以下函数并在回滚中出现异常案例...

"savedState dictionary does not contain the expected values and might have been corrupted. "

还有其他回滚的方法吗？

   protected override void OnBeforeInstall(System.Collections.IDictionary savedState)
    {            
        try
        {                

            bool report = false; //Some validation
            if (!report)                
                throw new InstallException("License is not valid.");
            base.OnBeforeInstall(savedState);
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message, "Exception", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
            base.Rollback(savedState);
        }

    }

Answer 1

将异常处理程序中的“base.Rollback()”更改为“throw;”。您的调用者将在正确的时间调用回滚。