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ASP.NET MVC:在重定向和抛出HttpException时不执行actionfilters

action-filter redirect asp.net-mvc

0

giorgian · 技术社区 · 17 年前

public class BaseController : Controller
{
    protected DataClassesDataContext context = new DataClassesDataContext();

    protected override void OnActionExecuted(ActionExecutedContext filterContext)
    {
        ViewModel model = (ViewModel) ViewData.Model;
        model.IsUserAuthenticated = filterContext.HttpContext.User.Identity.IsAuthenticated;
        if (model.IsUserAuthenticated)
        {
            model.UserName = filterContext.HttpContext.User.Identity.Name;
        }
        model.CommonAttribute = from c in context.Something select new SomethingElse() {...};
    }
}

如何避免在重定向时填充ViewModel?

1 回复 | 直到 17 年前

1

2

Craig Stuntz 17 年前

一个简单的解决方案是在模型不存在时不填充模型:

ViewModel model = ViewData.Model as ViewModel;
if (model != null)
{    
    model.IsUserAuthenticated = filterContext.HttpContext.User.Identity.IsAuthenticated;
    if (model.IsUserAuthenticated)
    {
        model.UserName = filterContext.HttpContext.User.Identity.Name;
    }
    model.CommonAttribute = from c in context.Something select new SomethingElse() {...};
}