制作一个全局ViewBag [英] Make a Global ViewBag

问题描述

是否有一种方法可以创建可在不同视图中使用的 Global ViewBag .

在我的应用程序中， 1)我已经使用了 DropDown for Company (用于公司的下拉列表)，该页面用于_Layout.cshtml页面.

2)对于该下拉菜单，我通过在每个操作中使用ViewBag.Company来传递值.

我想要解决方案::

1)一家全球性ViewBag.Company，其中包含我们从每个操作传递来的列表.

2)然后，无需在每个操作中创建ViewBag.Company.

这个问题可能有所不同. 但是我们如何实现呢?

解决方案

添加一个将公司添加到视图包的全局过滤器.

基本上创建一个动作过滤器:

public class CompanyFilter : ActionFilterAttribute
{
    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        filterContext.Controller.ViewBag.Company = "MyCompany";
    }
}

并在全球范围内注册

public class FilterConfig
{
    public static void RegisterGlobalFilters(GlobalFilterCollection filters)
    {
        filters.Add(new CompanyFilter()); // Add this line
        filters.Add(new HandleErrorAttribute());
    }
}

Is there a Way to Create a Global ViewBag that can be used in Different Views.

In my application's scenario, 1)I have used a DropDown for Company that is used into _Layout.cshtml page.

2) For that Dropdown I am passing the Value by making ViewBag.Company in each action.

I want the solution::

1) A Global ViewBag.Company having List that we are passing from each action.

2) Then there won't be any need to create ViewBag.Company in each Action.

This question might be something different. But How can we achieve this?

解决方案

Add a global filter that adds the Company to the view bag.

Basically create an actionfilter:

public class CompanyFilter : ActionFilterAttribute
{
    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        filterContext.Controller.ViewBag.Company = "MyCompany";
    }
}

And register it globally

public class FilterConfig
{
    public static void RegisterGlobalFilters(GlobalFilterCollection filters)
    {
        filters.Add(new CompanyFilter()); // Add this line
        filters.Add(new HandleErrorAttribute());
    }
}

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