Render partial from different folder not shared

Question

How can I have a view render a partial  user control  from a different folder  With preview 3 I used to call RenderUserControl with the complete path  but whith upgrading to preview 5 this is not possible anymore  Instead we got the RenderPartial method  but it s not offering me the functionality I m looking for

User · Answer

In my case I was using MvcMailer  https   github com smsohan MvcMailer  and wanted to access a partial view from another folder  that wasn t in  Shared    The above solutions didn t work  but using a relative path did    Html Partial     MyViewFolder Partials  PartialView   Model MyObject

User · Answer

For a user control named myPartial ascx located at Views Account folder write like this    lt  Html RenderPartial    Views Account myPartial ascx     gt

User · Answer

Just include the path to the view  with the file extension   Razor    Html Partial    Views AnotherFolder Messages cshtml   ViewData Model Successes    ASP NET engine    lt   Html RenderPartial    Views AnotherFolder Messages ascx   ViewData Model Successes     gt    If that isn t your issue  could you please include your code that used to work with the RenderUserControl

User · Answer

The VirtualPathProviderViewEngine  on which the WebFormsViewEngine is based  is supposed to support the     and     characters at the front of the path so your examples above should work   I noticed your examples use the path    Account myPartial ascx   but you mentioned that your user control is in the Views Account folder   Have you tried       lt  Html RenderPartial    Views Account myPartial ascx     gt    or is that just a typo in your question

User · Answer

I ve created a workaround that seems to be working pretty well  I found the need to switch to the context of a different controller for action name lookup  view lookup  etc  To implement this  I created a new extension method for HtmlHelper   public static IDisposable ControllerContextRegion      this HtmlHelper html       string controllerName        return new ControllerContextRegion html ViewContext RouteData  controllerName       ControllerContextRegion is defined as   internal class ControllerContextRegion   IDisposable       private readonly RouteData routeData      private readonly string previousControllerName       public ControllerContextRegion RouteData routeData  string controllerName                this routeData   routeData          this previousControllerName   routeData GetRequiredString  controller            this SetControllerName controllerName              public void Dispose                 this SetControllerName this previousControllerName              private void SetControllerName string controllerName                this routeData Values  controller     controllerName            The way this is used within a view is as follows    using  Html ControllerContextRegion  Foo             Html Action  Html Partial  etc  now looks things up as though        FooController was our controller      There may be unwanted side effects for this if your code requires the controller route component to not change  but in our code so far  there doesn t seem to be any negatives to this approach

User · Answer

The VirtualPathProviderViewEngine  on which the WebFormsViewEngine is based  is supposed to support the     and     characters at the front of the path so your examples above should work   I noticed your examples use the path    Account myPartial ascx   but you mentioned that your user control is in the Views Account folder   Have you tried       lt  Html RenderPartial    Views Account myPartial ascx     gt    or is that just a typo in your question

User · Answer

you should try this    Views Shared parts UMFview ascx   place the   Views  before your code

User · Answer

If you are using this other path a lot of the time you can fix this permanently without having to specify the path all of the time  By default  it is checking for partial views in the View folder and in the Shared folder  But say you want to add one   Add a class to your Models folder   public class NewViewEngine   RazorViewEngine       private static readonly string   NEW PARTIAL VIEW FORMATS   new              Views Foo  0  cshtml            Views Shared Bar  0  cshtml            public NewViewEngine              Keep existing locations in sync       base PartialViewLocationFormats   base PartialViewLocationFormats Union NEW PARTIAL VIEW FORMATS  ToArray             Then in your Global asax cs file  add the following line   ViewEngines Engines Add new NewViewEngine

User · Answer

The VirtualPathProviderViewEngine  on which the WebFormsViewEngine is based  is supposed to support the     and     characters at the front of the path so your examples above should work   I noticed your examples use the path    Account myPartial ascx   but you mentioned that your user control is in the Views Account folder   Have you tried       lt  Html RenderPartial    Views Account myPartial ascx     gt    or is that just a typo in your question

User · Answer

I ve created a workaround that seems to be working pretty well  I found the need to switch to the context of a different controller for action name lookup  view lookup  etc  To implement this  I created a new extension method for HtmlHelper   public static IDisposable ControllerContextRegion      this HtmlHelper html       string controllerName        return new ControllerContextRegion html ViewContext RouteData  controllerName       ControllerContextRegion is defined as   internal class ControllerContextRegion   IDisposable       private readonly RouteData routeData      private readonly string previousControllerName       public ControllerContextRegion RouteData routeData  string controllerName                this routeData   routeData          this previousControllerName   routeData GetRequiredString  controller            this SetControllerName controllerName              public void Dispose                 this SetControllerName this previousControllerName              private void SetControllerName string controllerName                this routeData Values  controller     controllerName            The way this is used within a view is as follows    using  Html ControllerContextRegion  Foo             Html Action  Html Partial  etc  now looks things up as though        FooController was our controller      There may be unwanted side effects for this if your code requires the controller route component to not change  but in our code so far  there doesn t seem to be any negatives to this approach

User · Answer

Just include the path to the view  with the file extension   Razor    Html Partial    Views AnotherFolder Messages cshtml   ViewData Model Successes    ASP NET engine    lt   Html RenderPartial    Views AnotherFolder Messages ascx   ViewData Model Successes     gt    If that isn t your issue  could you please include your code that used to work with the RenderUserControl

User · Answer

The VirtualPathProviderViewEngine  on which the WebFormsViewEngine is based  is supposed to support the     and     characters at the front of the path so your examples above should work   I noticed your examples use the path    Account myPartial ascx   but you mentioned that your user control is in the Views Account folder   Have you tried       lt  Html RenderPartial    Views Account myPartial ascx     gt    or is that just a typo in your question

User · Answer

For a user control named myPartial ascx located at Views Account folder write like this    lt  Html RenderPartial    Views Account myPartial ascx     gt

User · Answer

Create a Custom View Engine and have a method that returns a ViewEngineResult In this example you just overwrite the  options ViewLocationFormats and add your folder directory    public ViewEngineResult FindView ActionContext context  string viewName  bool isMainPage                        var controllerName   context GetNormalizedRouteValue CONTROLLER KEY               var areaName   context GetNormalizedRouteValue AREA KEY                var checkedLocations   new List lt string gt                 foreach  var location in  options ViewLocationFormats                                var view   string Format location  viewName  controllerName                   if  File Exists view                                         return ViewEngineResult Found  Default   new View view   ViewRendering                                      checkedLocations Add view                              return ViewEngineResult NotFound viewName  checkedLocations               Example  https   github com AspNetMonsters pugzor

User · Answer

Just include the path to the view  with the file extension   Razor    Html Partial    Views AnotherFolder Messages cshtml   ViewData Model Successes    ASP NET engine    lt   Html RenderPartial    Views AnotherFolder Messages ascx   ViewData Model Successes     gt    If that isn t your issue  could you please include your code that used to work with the RenderUserControl

User · Answer

Try using RenderAction  myPartial   Account

User · Answer

Create a Custom View Engine and have a method that returns a ViewEngineResult In this example you just overwrite the  options ViewLocationFormats and add your folder directory    public ViewEngineResult FindView ActionContext context  string viewName  bool isMainPage                        var controllerName   context GetNormalizedRouteValue CONTROLLER KEY               var areaName   context GetNormalizedRouteValue AREA KEY                var checkedLocations   new List lt string gt                 foreach  var location in  options ViewLocationFormats                                var view   string Format location  viewName  controllerName                   if  File Exists view                                         return ViewEngineResult Found  Default   new View view   ViewRendering                                      checkedLocations Add view                              return ViewEngineResult NotFound viewName  checkedLocations               Example  https   github com AspNetMonsters pugzor

User · Answer

If you are using this other path a lot of the time you can fix this permanently without having to specify the path all of the time  By default  it is checking for partial views in the View folder and in the Shared folder  But say you want to add one   Add a class to your Models folder   public class NewViewEngine   RazorViewEngine       private static readonly string   NEW PARTIAL VIEW FORMATS   new              Views Foo  0  cshtml            Views Shared Bar  0  cshtml            public NewViewEngine              Keep existing locations in sync       base PartialViewLocationFormats   base PartialViewLocationFormats Union NEW PARTIAL VIEW FORMATS  ToArray             Then in your Global asax cs file  add the following line   ViewEngines Engines Add new NewViewEngine

User · Answer

For readers using ASP NET Core 2 1 or later and wanting to use Partial Tag Helper syntax  try this    lt partial name    Views Folder  PartialName cshtml    gt    The tilde     is optional   The information at https   docs microsoft com en-us aspnet core mvc views partial view aspnetcore-3 1 partial-tag-helper is helpful too

User · Answer

For readers using ASP NET Core 2 1 or later and wanting to use Partial Tag Helper syntax  try this    lt partial name    Views Folder  PartialName cshtml    gt    The tilde     is optional   The information at https   docs microsoft com en-us aspnet core mvc views partial view aspnetcore-3 1 partial-tag-helper is helpful too

User · Answer

you should try this    Views Shared parts UMFview ascx   place the   Views  before your code

User · Answer

Try using RenderAction  myPartial   Account

User · Answer

In my case I was using MvcMailer  https   github com smsohan MvcMailer  and wanted to access a partial view from another folder  that wasn t in  Shared    The above solutions didn t work  but using a relative path did    Html Partial     MyViewFolder Partials  PartialView   Model MyObject

User · Answer

Just include the path to the view  with the file extension   Razor    Html Partial    Views AnotherFolder Messages cshtml   ViewData Model Successes    ASP NET engine    lt   Html RenderPartial    Views AnotherFolder Messages ascx   ViewData Model Successes     gt    If that isn t your issue  could you please include your code that used to work with the RenderUserControl

[c#] Render partial from different folder (not shared)

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