ASP.NET MVC里面我们要自定义ActionFilter的时候会发现有4个方法可以override:OnActionExecuting,OnActionExecuted,OnResultExecuting,OnResultExecuted。他们分别在什么时候执行一直是困扰人类的一个问题。我代表人类做了一个简单的实验: 首先自定义一个ActionFilter,每个方法执行的时候都在VS的OUTPUT窗口输出信息: public class TestActionFilter : ActionFilterAttribute { public override void OnActionExecuting(ActionExecutingContext filterContext) { Debug.WriteLine("OnActionExecuting"); …
First of all, I don't recommend storing images in the database, especially in a web project. Because file systems can provide static file access and get many benefits such as performance. Storing images in the database has certain limits.
But if you must store images into SQL Server, here's how to do it.
SQL
Image files are in fact, binary data. SQL Server provides us the image type for …