Check if (partial) view exists from HtmlHelperMethod

Question

Does anyone know if it's possible to check if a partial view exists from within an HtmlHelperExtension?

I know it's possible from a controller using the following:

 private bool ViewExists(string name)  {      ViewEngineResult result = ViewEngines.Engines.FindView(ControllerContext, name, null);      return (result.View != null);  } 

Source: Does a View Exist in Asp.Net MVC?

But you can't do the above in a helper, as you don't have access to the controller context. Any thoughts on how to do this?

Answer 1

But you can't do the above in a helper, as you don't have access to the controller context.

Oh yes, you do have access:

public static HtmlString MyHelper(this HtmlHelper html) {     var controllerContext = html.ViewContext.Controller.ControllerContext;     var result = ViewEngines.Engines.FindView(controllerContext, name, null);     ... } 

Answer 2

For completeness, the way to find a partial view, is actually as follows.

public static HtmlString MyHelper(this HtmlHelper html) {      var controllerContext = html.ViewContext.Controller.ControllerContext;      ViewEngineResult result = ViewEngines.Engines.FindPartialView(controllerContext, name);      ... } 

And be sure to include the extension of the view; either cshtml for razor or aspx for webforms view engines.