在Razor中使用静态变量 [英] Using Static Variables in Razor
问题描述
为什么无法在视图内部使用静态类中的静态变量?
Why is it not possible to use a static Variable from a static class inside a view?
例如，假设您拥有一个设置类:
For example, lets say you have a Settings Class:
public static class GlobalVariables
{
public static string SystemColor
{
get { return Properties.Settings.Default.SystemColor; }
}
}
您为什么不能在视图中调用它?
Why wouldn't you be able to call it in a view?
像这样
@using AppName.Models
<html>
<div ><h1 style="color:@GlobalVariables.SystemColor">System Color</h1></div>
</html>
推荐答案
据我所知，您可以从ASP.NET MVC的视图内部访问静态变量(如果包含)类的名称空间，并带有适当的using语句:
As far as I'm aware, you can access static variables from inside a view in ASP.NET MVC, if you include the class' namespace with the appropriate using statement:
@using WhateverNamespaceGlobalVariablesIsIn
更重要的是，无论如何您都不应该直接从视图访问静态变量.与MVC模式保持一致，您的视图模型中的所有视图数据都应可访问:
More importantly, you shouldn't be accessing static variables directly from views anyway. In keeping with the MVC pattern, all of your view's data should be accessible in your view model:
public ActionResult MyAction()
{
var model = new MyViewModel();
model.SystemColor = GlobalVariables.SystemColor;
...
return View(model);
}
查看:
@model MyViewModel
<div>
<h1 style="color:@(Model.SystemColor)">System Color</h1>
</div>
如果需要在布局文件中执行此操作，则可以使用RenderAction调用控制器动作并返回部分视图.然后可以将partial输入为MyViewModel，可以像上面那样使用.
If you need to do this in your layout file, you can use RenderAction to call a controller action and return a partial view instead. The partial can then be typed to MyViewModel, which can be used as above.
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