{"id":4476,"date":"2014-03-30T11:25:29","date_gmt":"2014-03-30T11:25:29","guid":{"rendered":"https:\/\/unknownerror.org\/index.php\/2014\/03\/30\/problem-about-markup-extensions-collection-of-common-programming-errors\/"},"modified":"2014-03-30T11:25:29","modified_gmt":"2014-03-30T11:25:29","slug":"problem-about-markup-extensions-collection-of-common-programming-errors","status":"publish","type":"post","link":"https:\/\/unknownerror.org\/index.php\/2014\/03\/30\/problem-about-markup-extensions-collection-of-common-programming-errors\/","title":{"rendered":"problem about markup-extensions-Collection of common programming errors"},"content":{"rendered":"<ul>\n<li><img decoding=\"async\" src=\"http:\/\/i.stack.imgur.com\/vPNHD.jpg?s=32&amp;g=1\" \/><br \/>\nSpook<br \/>\nwpf localization properties markup-extensions<br \/>\nI&#8217;m doing a small research on localisation methods in WPF. I heard about the idea with markup extension:&lt;Label Content=&#8221;{local:Translate {&#8211; label ID here &#8211;}}&#8221; \/&gt;I like this solution very much: it&#8217;s extremely easy to implement and seems to be nicely flexible. I&#8217;ve got one concern, however. Let&#8217;s suppose, that user changes the locale in the runtime. How to ensure, that localized properties will be reevaluated to match new language?<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/2d1eeefe29aad824bf86b84c0f44a43e?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nDeveloper&#8217;s Destiny<br \/>\nwpf xaml markup-extensions dynamicresource systemcolors<br \/>\nI have a corner case where both dynamic resources (don&#8217;t allow for converters) and custom markup extensions (only evaluated once) won&#8217;t do the trick. I want to create gradient brushes based on faded variants of the current system colors. Those brushes should update themselves whenever the system&#8217;s color theme changes, so that users don&#8217;t need to restart the application in case they switch to an accessibility theme.Is it possible to detect changes of the system&#8217;s color theme at runtime within an<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/bc10c7edd7524e1a05de670a3f0399a4?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nWill<br \/>\nwpf arrays types markup-extensions<br \/>\nLong story short, I need to do this:ExpressionType=&#8221;{x:Type sys:Byte[]}&#8221;In other words, I need to do this:foo.ExpressionType=typeof(byte[]);Wat do?Update: Its a bug in the 2010 design surface. It works fine at runtime.<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/5cb55327ace7100e0baeb4a9cd4f2868?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nEdison Gustavo Muenz<br \/>\nc# wpf markup-extensions<br \/>\nI have a wpf application and I&#8217;m starting to localize it. The strategy for localization I chose was to create my custom MarkupExtension class.I won&#8217;t be using the .res files since at my company there is a solution that is already made which creates an encrypted map with all the strings and it requires int keys to refer to each string. So I wrote a custom generator that creates an enum with all the &#8216;int&#8217; keys (could be a static class with ints, it doesn&#8217;t really matter).So I want to refer to each<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/911580f86f620825b4ebaad5c68012a1?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nAthari<br \/>\nc# .net wpf xaml markup-extensions<br \/>\nEven after simplifying the problem to minimal code, I still can&#8217;t understand what can cause NullReferenceException.Create new WPF Application &#8220;MarkupExtParam&#8221;. Replace code:MainWindow.xaml:&lt;Window x:Class=&#8221;MarkupExtParam.MainWindow&#8221;xmlns=&#8221;http:\/\/schemas.microsoft.com\/winfx\/2006\/xaml\/presentation&#8221;xmlns:x=&#8221;http:\/\/schemas.microsoft.com\/winfx\/2006\/xaml&#8221;xmlns:my=&#8221;clr-namespace:MarkupExtParam&#8221;Content=&#8221;{Binding}&#8221;&gt;&lt;Control.DataContext&gt;&lt;my:Foo\/&gt;&lt;\/Control.DataContext&gt;&lt;Control.Re<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/c316c2e22e5c4e470d05ec88d04538ae?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nMCRXB<br \/>\nc# wpf converter markup-extensions<br \/>\nI&#8217;m trying to create a Markup Extension that will take a string of HTML, convert it to a FlowDocument, and return the FlowDocument. I&#8217;m fairly new to creating Markup Extensions and I&#8217;m hoping this will be obvious to someone with more experience. Here is my code:[MarkupExtensionReturnType(typeof(FlowDocument))] public class HtmlToXamlExtension : MarkupExtension {public HtmlToXamlExtension(String source){this.Source = source;}[ConstructorArgument(&#8220;source&#8221;)]public String Source { get; set; }public<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/c35af79e54306caedad37141f13de30c?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nH.B.<br \/>\n.net wpf vb.net c#-to-vb.net markup-extensions<br \/>\nI&#8217;m trying to create a VB.Net Markup Extension per this blog post but in vb.net&lt;Application x:Class=&#8221;Application&#8221;xmlns=&#8221;http:\/\/schemas.microsoft.com\/winfx\/2006\/xaml\/presentation&#8221;xmlns:x=&#8221;http:\/\/schemas.microsoft.com\/winfx\/2006\/xaml&#8221;ShutdownMode=&#8221;OnExplicitShutdown&#8221;&gt;&lt;Application.Resources&gt; &lt;\/Application.Resources&gt;&lt;JumpList.JumpList&gt;&lt;JumpList ShowRecentCategory=&#8221;True&#8221;&gt;&lt;JumpTask Title=&#8221;Save as&#8230;&#8221; Arguments=&#8221;-saveas&#8221;ApplicationPath=&#8221;{local:ApplicationFullPath<\/li>\n<\/ul>\n<p>Web site is in building<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Spook wpf localization properties markup-extensions I&#8217;m doing a small research on localisation methods in WPF. I heard about the idea with markup extension:&lt;Label Content=&#8221;{local:Translate {&#8211; label ID here &#8211;}}&#8221; \/&gt;I like this solution very much: it&#8217;s extremely easy to implement and seems to be nicely flexible. I&#8217;ve got one concern, however. Let&#8217;s suppose, that user [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4476","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/4476","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/comments?post=4476"}],"version-history":[{"count":0,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/4476\/revisions"}],"wp:attachment":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/media?parent=4476"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/categories?post=4476"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/tags?post=4476"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}