我需要从一个约会驱动的位置写一个js文件的内容(如〜/ ClientApp / Controllers / Home / Home.js,如果加载位于〜/ Views / Home / Home.cshtml的视图).我该如何做？
示例：如果文件〜/ Views / Home / Home.cshtml如下所示：
<div id="some-partial-view"> <!-- ... --> </div>
而文件〜/ ClientApp / Controllers / Home / Home.Controller.js看起来像
function HomeController() {
//some code
}
然后Web服务器返回的渲染视图应该是(如果使用fiddler)
<!--ommitted <html> <body> tags -->
<div id="some-partial-view">
<!-- ... -->
</div>
<script type="text/javascript">
function HomeController() {
//some code
}
</script>
<div id="some-partial-view" ng:Controller="HomeController">
<!-- ... -->
</div>
@Html.IncludeController("HomeController")
但是,我不想在所有部分视图中重复.
有任何想法吗？
解决方法
你可以编写自定义视图：
public class MyRazorView : RazorView
{
public MyRazorView(ControllerContext controllerContext,string viewPath,string layoutPath,bool runViewStartPages,IEnumerable<string> viewStartFileExtensions,IViewPageActivator viewPageActivator)
: base(controllerContext,viewPath,layoutPath,runViewStartPages,viewStartFileExtensions,viewPageActivator)
{
}
protected override void RenderView(ViewContext viewContext,TextWriter writer,object instance)
{
base.RenderView(viewContext,writer,instance);
var view = (BuildManagerCompiledView)viewContext.View;
var context = viewContext.HttpContext;
var path = context.Server.MapPath(view.ViewPath);
var viewName = Path.GetFileNameWithoutExtension(path);
var controller = viewContext.RouteData.GetrequiredString("controller");
var js = context.Server.MapPath(
string.Format(
"~/ClientApp/Controllers/{0}/{0}.{1}.js",viewName,controller
)
);
if (File.Exists(js))
{
writer.WriteLine(
string.Format(
"<script type=\"text/javascript\">{0}</script>",File.ReadAllText(js)
)
);
}
}
}
以及一个自定义视图引擎,当要求部分视图时,它将返回此自定义视图：
public class MyRazorViewEngine : RazorViewEngine
{
protected override IView CreatePartialView(ControllerContext controllerContext,string partialPath)
{
return new MyRazorView(
controllerContext,partialPath,null,false,base.FileExtensions,base.ViewPageActivator
);
}
}
这将在Application_Start中注册：
protected void Application_Start()
{
AreaRegistration.RegisterAllAreas();
RegisterGlobalFilters(GlobalFilters.Filters);
RegisterRoutes(RouteTable.Routes);
ViewEngines.Engines.Clear();
ViewEngines.Engines.Add(new MyRazorViewEngine());
}
您可能需要调整一些路径,因为在您的问题中,js所在的位置不太清楚,但通常您应该在答案中有足够的详细信息.
