{"id":403,"date":"2015-12-21T14:05:19","date_gmt":"2015-12-21T13:05:19","guid":{"rendered":"http:\/\/jonika.nu\/JonasBlogg\/?p=403"},"modified":"2015-12-21T18:09:25","modified_gmt":"2015-12-21T17:09:25","slug":"resolving-links-in-xhtmlstrings","status":"publish","type":"post","link":"https:\/\/jonika.nu\/JonasBlogg\/archives\/403","title":{"rendered":"Resolving links in XhtmlStrings, EPiServer 7.16.1"},"content":{"rendered":"

Did you ever try to store a XhtmlString in a variable and use it in your code? Maybe you noticed that some stuff, like links, isn’t very useful because they are internal.<\/p>\n

I noticed this when i upgraded a site from CMS6, and on that site i had a working code that rendered dynamic content so the code i passed to my variable actually was useful, but it broke when i upgraded the site. What i did find than, was that XhtmlStrings are made up of Fragments. And that’s really useful!<\/p>\n

One thing you can do with these fragments is resolving internal links, and this is because links are stored as a UrlFragment. A typical XhtmlString could look like:<\/p>\n

\"\"<\/a>As you can see, we have regular content, UrlFragments and a ContentFragment. So now, we can write some code to do stuff with different fragements:<\/p>\n

StringBuilder sBuilder = new StringBuilder();\r\nforeach (IStringFragment sFragment in Xhtml.Fragments)\r\n{\r\n  if (sFragment is ContentFragment)\r\n  {\r\n  }\r\n  if (sFragment is UrlFragment)\r\n  {\r\n  }\r\n  sBuilder.Append(sFragment.GetViewFormat());\r\n}<\/pre>\n
Maybe you would like to do something with a block?<\/p>\n
if (sFragment is ContentFragment)\r\n{\r\n  ContentFragment cFragment = sFragment as ContentFragment;\r\n  var Content = Repository.Get<ContentData>(cFragment.ContentLink);\r\n}\r\n<\/pre>\n
Or, if you would like to resolve links in your XhtmlString:<\/p>\n
if(sFragment is UrlFragment) \r\n{\r\n  UrlFragment uFragment = sFragment as UrlFragment;\r\n  UrlBuilder uBuilder = new UrlBuilder(uFragment.InternalFormat);\r\n  Global.UrlRewriteProvider.ConvertToExternal(uBuilder, null, Encoding.UTF8);\r\n  sBuilder.Append(uBuilder.Uri);\r\n  continue;\r\n}\r\n<\/pre>\n
The complete code i use to resolve links before passing the content to a javascript:<\/p>\n
public static string ParseXhtmlString(XhtmlString Xhtml)\r\n{\r\n    StringBuilder sBuilder = new StringBuilder();\r\n    if (!(Xhtml == null || Xhtml.IsEmpty))\r\n    {\r\n        foreach (IStringFragment sFragment in Xhtml.Fragments)\r\n        {\r\n            UrlFragment uFragment = sFragment as UrlFragment;\r\n            if(uFragment != null) \r\n            {\r\n                try\r\n                {\r\n                    UrlBuilder uBuilder = new UrlBuilder(uFragment.InternalFormat);\r\n                    Global.UrlRewriteProvider.ConvertToExternal(uBuilder, null, Encoding.UTF8);\r\n                    sBuilder.Append(uBuilder.Uri);\r\n                    continue;\r\n                }\r\n                catch (Exception)\r\n                { }\r\n            }\r\n            sBuilder.Append(sFragment.GetViewFormat());\r\n        }\r\n    }\r\n    return sBuilder.ToString();\r\n}<\/pre>\n
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