覆蓋方法，如果類是DLL

Question

我使用的是asp.net mvc4。

我正在使用DLL，所以我必須重寫類來擴展新的方法。

我有這樣一個觀點：從這個類

@model SalesAgentLoginInfoModel 
<div class="top-dropdown login"> 
    <div class="opener collapsed"> 
     <span class="login-title">@Sana.SimpleText("Account")</span> 
    </div> 
    <div class="summary"> 
     <div class="welcome border-horizontal"> 
      @Sana.SimpleText("Login_Welcome") 
      <span class="user-name">@Model.Name</span> 
     </div> 
     <a href="@Url.Sana.MyAccount()" class="hyp">@Sana.SimpleText("Login_MyAccount")</a> 

     <a href="@Url.Sana.RepresentCustomer()" class="hyp">@Sana.SimpleText("ButtonText_RepresentCustomer")</a> 

     <a href="@Url.Sana.RepresentCustomer()" class="hyp">@Sana.SimpleText("ButtonText_baliecode")</a> 
     dlkfnslkdf 
     <div class="logout border-horizontal"> 
      <a id="logoutLink" href="@Url.Sana.Logout()" class="arrow-blue">@Sana.SimpleText("Logout_LinkText")</a> 
     </div> 
    </div> 
</div> 

而且RepresentCustomer（）是：

 // Summary: 
     //  The web shop URLs constructor. 
     public class UrlsBuilder 
     { 


public virtual string RepresentCustomer(string returnUrl = null); 
     // 
     // Summary: 
     //  Gets the URL to the reset password page. 
     // 
     // Returns: 
     //  The reset password page URL. 
      // 
      // Summary: 
      //  Initializes a new instance of the Sana.Commerce.Web.Routing.UrlsBuilder class. 
      // 
      // Parameters: 
      // routes: 
      //  The route collection. 
      public UrlsBuilder(RouteCollection routes); 

      // 
      // Summary: 
      //  Gets the instance of Sana.Commerce.Web.Routing.UrlsBuilder. 
      public static UrlsBuilder Current { get; } 
      // 
      // Summary: 
      //  The routes used to construct URLs. 
      public RouteCollection Routes { get; protected set; } 

      // 
      // Summary: 
      //  Gets the URL to the add review page. 
      // 
      // Parameters: 
      // productId: 
      //  The product ID. 
      // 
      // returnUrl: 
      //  The return URL. 
      // 
      // navigationNodeId: 
      //  The navigation node ID. 
      // 
      // Returns: 
      //  The add review page URL. 
      public virtual string AddReview(string productId, string returnUrl = null, string navigationNodeId = null); 
    } 

因此，我已擴展的類UrlsBuilder像這樣的新方法：

public class V_ExtendendURlsBuilder : UrlsBuilder 
    { 
     public V_ExtendendURlsBuilder(RouteCollection routes) : base(routes) 
     { 
     } 

     public virtual string BaliecodeVerkoper(string url) 
     { 

      return url; 

     } 
} 

但是，如果我試圖在視圖中調用像這樣的新方法：

<a href="@Url.Sana...." class="hyp">@Sana.SimpleText("ButtonText_baliecode") 

我沒有看到新的方法BaliecodeVerkoper。

還有一件事。該public UrlsBuilder Sana { get; }

是這個類中：

public class FrontendUrlHelper : SanaUrlHelper 
    { 
     // 
     // Summary: 
     //  The facet values query string separator. 
     public const string FacetValuesSeparator = "\n"; 

     // 
     // Summary: 
     //  Initializes a new instance of the Sana.Commerce.Web.Frontend.FrontendUrlHelper 
     //  class. 
     // 
     // Parameters: 
     // requestContext: 
     //  The request context. 
     public FrontendUrlHelper(RequestContext requestContext); 

     // 
     // Summary: 
     //  Gets the Sana URLs builder. 
     public UrlsBuilder Sana { get; } 

     // 
     // Summary: 
     //  Creates a new instance of the frontend URL helper initialized with the specified 
     //  requestContext. It can be a standard helper class or a customized version if 
     //  it is registered through the Sana.ObjectManager. 
     // 
     // Parameters: 
     // requestContext: 
     //  The request context. 
     // 
     // Returns: 
     //  Returns a new instance of the frontend URL helper. 
     public static FrontendUrlHelper Create(RequestContext requestContext); 
     // 
     // Summary: 
     //  Reads the selected facets from the query string of the current request. 
     // 
     // Parameters: 
     // facets: 
     //  The collection of all available facets. 
     public void ReadSelectedFacets(FieldFilterCollection facets); 
     // 
     // Summary: 
     //  Sets the selected facets in the query string of the specified url. 
     // 
     // Parameters: 
     // url: 
     //  The base URL. 
     // 
     // facets: 
     //  The facets. 
     // 
     // Returns: 
     //  Returns the url with the selected facets in its query string. 
     public virtual string SetSelectedFacets(string url, FieldFilterCollection facets); 
     // 
     // Summary: 
     //  Reads the selected facets from the specified query string dictionary. 
     // 
     // Parameters: 
     // queryString: 
     //  The query string. 
     // 
     // facets: 
     //  The facets. 
     protected virtual void ReadSelectedFacets(NameValueCollection queryString, FieldFilterCollection facets); 
     // 
     // Summary: 
     //  Sets the selected facets into the queryString. 
     // 
     // Parameters: 
     // queryString: 
     //  The query string dictionary. 
     // 
     // facets: 
     //  The facets. 
     protected virtual void SetSelectedFacets(NameValueCollection queryString, FieldFilterCollection facets); 
    } 

所以我的問題：如何擴展新方法UrlsBuilder？

謝謝

一個其他的嘗試是嘗試這樣的：

public class V_ExtendendURlsBuilder : UrlsBuilder 
    { 
     public V_ExtendendURlsBuilder(RouteCollection routes) : base(routes) 
     { 
     } 

     public virtual string BaliecodeVerkoper(string url) 
     { 

      return url; 

     } 



    } 

但我仍然看不到那麼新方法：

public class ExtendFrontEndUrlHelper : FrontendUrlHelper 
    { 
     public UrlsBuilder builder; 
     public ExtendFrontEndUrlHelper(RequestContext requestContext) : base(requestContext) 
     { 
     } 

     public UrlsBuilder BalieCode() 
     { 

      return builder; 

     } 
    } 

我只是想用新的方法Baliecode擴展UrlsBuilder類。這樣我就可以在視圖中使用該方法。但UrlsBuilder是一個DLL。所以我必須用一種新方法擴展這個類。

我希望我現在清楚。

看到我的圖片。所以我還沒有看到新的方法Baliecode

謝謝

enter image description here

，但如何在視圖中使用它呢？

<a href="@Url." class="hyp">@Sana.SimpleText("ButtonText_baliecode")</a> 

@Url ..然後？我沒有看到擴展...

如果我去：現在

public abstract class SanaWebViewPage : SanaWebViewPageBase 
    { 
     protected SanaWebViewPage(); 

     // 
     // Summary: 
     //  Gets the Sana view helper. 
     public SanaViewHelper Sana { get; set; } 
     // 
     // Summary: 
     //  Gets or sets the Sana.Commerce.Web.Frontend.FrontendUrlHelper object that is 
     //  used to manage the URLs. 
     // 
     // Returns: 
     //  The current Sana.Commerce.Web.Frontend.FrontendUrlHelper. 
     public FrontendUrlHelper Url { get; set; } 
     // 
     // Summary: 
     //  Gets the page info. 
     protected virtual WebPageInfo PageInfo { get; } 

     // 
     // Summary: 
     //  Initializes the helpers. 
     public override void InitHelpers(); 
    } 

奧凱，我有它，就像這樣：：

<a href="@Url.Sana" class="hyp">@Sana.SimpleText("ButtonText_baliecode")</a> 

，然後F12上@Url

我看到這個類

public class extendedSanaWebviewPage : SanaWebViewPage 
    { 
     public ExtendFrontEndUrlHelper extendedFrontEndUrlHelper { get; set; } 

     public override void Execute() 
     { 
      throw new NotImplementedException(); 
     } 
    } 

但是我不要在視圖中沒有看到：@extendedFrontEndUrlHelper

謝謝

Answer 1

意味着你的public UrlsBuilder Sana { get; }真的返回到V_ExtendendURlsBuilder實例的引用，你可以施放它。例如

var extendedUrlBuilder = (V_ExtendedURLsBuilder) Url.Sana; 

extendedUrlBuilder.BaliecodeVerkoper("url"); 

但是，它感覺可能是一個不同的架構總體上會更好。 （鑄件可以線索，雖然不是任務，爲建築再評價）

編輯：進一步澄清後，也許你想要更多的東西一樣：

public class ExtendFrontEndUrlHelper : FrontendUrlHelper 
{ 
    V_ExtendedURLsBuilder builder; 
    public ExtendFrontEndUrlHelper(RequestContext requestContext) : base(requestContext) 
    { 
     // presumably you assigned builder here somehow 
    } 

    public new V_ExtendedURLsBuilder Sana 
    { get { return builder; } } 
}